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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Oral health in postmenopausal and premenopausal women after myocardial infarction in Poland: a preliminary study</title><author><name sortKey="G Rski, Bartlomiej" sort="G Rski, Bartlomiej" uniqKey="G Rski B" first="Bartłomiej" last="G Rski">Bartłomiej G Rski</name></author><author><name sortKey="Ganowicz, Ewa" sort="Ganowicz, Ewa" uniqKey="Ganowicz E" first="Ewa" last="Ganowicz">Ewa Ganowicz</name></author><author><name sortKey="G Rska, Renata" sort="G Rska, Renata" uniqKey="G Rska R" first="Renata" last="G Rska">Renata G Rska</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">26327899</idno><idno type="pmc">4498022</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4498022</idno><idno type="RBID">PMC:4498022</idno><idno type="doi">10.5114/pm.2015.49331</idno><date when="2015">2015</date><idno type="wicri:Area/Pmc/Corpus">000440</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000440</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Oral health in postmenopausal and premenopausal women after myocardial infarction in Poland: a preliminary study</title><author><name sortKey="G Rski, Bartlomiej" sort="G Rski, Bartlomiej" uniqKey="G Rski B" first="Bartłomiej" last="G Rski">Bartłomiej G Rski</name></author><author><name sortKey="Ganowicz, Ewa" sort="Ganowicz, Ewa" uniqKey="Ganowicz E" first="Ewa" last="Ganowicz">Ewa Ganowicz</name></author><author><name sortKey="G Rska, Renata" sort="G Rska, Renata" uniqKey="G Rska R" first="Renata" last="G Rska">Renata G Rska</name></author></analytic><series><title level="j">Przegla̜d Menopauzalny = Menopause Review</title><idno type="ISSN">1643-8876</idno><idno type="eISSN">2299-0038</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="st1"><title>Introduction</title><p>Age and hormonal disorders are recognized factors impacting the periodontium and the prevalence of cardiovascular diseases, but as yet the relationship between these two conditions in postmenopausal (post-M) and premenopausal (pre-M) women in Poland has not been assessed. The aim of this study was to compare the periodontal status in women after myocardial infarction (MI) with women without MI history and to determine risk factors for periodontitis.</p></sec><sec id="st2"><title>Material and methods</title><p>The study included 35 women hospitalized due to MI, average age 54.7 ± 9.4 years, and 96 women randomly drawn from the general population, average age 56.1 ± 10.0 years. All women were checked for periodontitis risk factors (education, socioeconomic status, tobacco smoking, stress), and underwent dental examination.</p></sec><sec id="st3"><title>Results</title><p>The lowest number of teeth was found in post-M women after MI (median = 8), whereas pre-M women without MI history had 25 teeth. Edentulousness occurred more frequently in post-M women compared with pre-M women (12.2% vs. 0%), the same was observed for advanced periodontitis (28.4% vs. 21.1%). The severity of periodontitis was highest in the post-M subgroup (more than half demonstrated advanced periodontitis or edentulousness). The most important risk factor for periodontitis, regardless of age, was the level of education. In post-M women the second risk factor was smoking, while in pre-M women negative stress.</p></sec><sec id="st4"><title>Conclusions</title><p>The status of oral health in post-M women is unsatisfactory, particularly in those affected by cardiovascular diseases. It is necessary to take preventive and educational measures targeted at these women.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Thornton Veans, G" uniqKey="Thornton Veans G">G Thornton-Veans</name></author><author><name sortKey="Eke, P" uniqKey="Eke P">P Eke</name></author><author><name sortKey="Wei, L" uniqKey="Wei L">L Wei</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Chavarry, Ng" uniqKey="Chavarry N">NG Chavarry</name></author><author><name sortKey="Vettore, Mv" uniqKey="Vettore M">MV Vettore</name></author><author><name sortKey="Sansone, C" uniqKey="Sansone C">C Sansone</name></author><author><name sortKey="Sheiham, A" uniqKey="Sheiham A">A Sheiham</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Stabholz, A" uniqKey="Stabholz A">A Stabholz</name></author><author><name sortKey="Soskolne, A" uniqKey="Soskolne A">A Soskolne</name></author><author><name sortKey="Shapira, L" uniqKey="Shapira L">L Shapira</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Demmer, Rt" uniqKey="Demmer R">RT Demmer</name></author><author><name sortKey="Papapanou, Pn" uniqKey="Papapanou P">PN Papapanou</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="G Rska, R" uniqKey="G Rska R">R Górska</name></author><author><name sortKey="Pietruska, M" uniqKey="Pietruska M">M Pietruska</name></author><author><name sortKey="Dembowska, E" uniqKey="Dembowska E">E Dembowska</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Konopka, T" uniqKey="Konopka T">T Konopka</name></author><author><name sortKey="Pietruska, M" uniqKey="Pietruska M">M Pietruska</name></author><author><name sortKey="Dembowska, E" uniqKey="Dembowska E">E Dembowska</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Androsz, O" uniqKey="Androsz O">O Androsz</name></author><author><name sortKey="Kwiatkowska Jakubas, W" uniqKey="Kwiatkowska Jakubas W">W Kwiatkowska-Jakubas</name></author><author><name sortKey="Blachowicz, A" uniqKey="Blachowicz A">A Blachowicz</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Armitage, Gc" uniqKey="Armitage G">GC Armitage</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ainamo, J" uniqKey="Ainamo J">J Ainamo</name></author><author><name sortKey="Barmes, D" uniqKey="Barmes D">D Barmes</name></author><author><name sortKey="Beagrie, G" uniqKey="Beagrie G">G Beagrie</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Page, Rc" uniqKey="Page R">RC Page</name></author><author><name sortKey="Eke, Pi" uniqKey="Eke P">PI Eke</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Eke, Pi" uniqKey="Eke P">PI Eke</name></author><author><name sortKey="Dye, Ba" uniqKey="Dye B">BA Dye</name></author><author><name sortKey="Wei, L" uniqKey="Wei L">L Wei</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Baelum, V" uniqKey="Baelum V">V Baelum</name></author><author><name sortKey="Lopez, R" uniqKey="Lopez R">R Lopez</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Linden, Gj" uniqKey="Linden G">GJ Linden</name></author><author><name sortKey="Lyons, A" uniqKey="Lyons A">A Lyons</name></author><author><name sortKey="Scannapieco, Fa" uniqKey="Scannapieco F">FA Scannapieco</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Linden, Gj" uniqKey="Linden G">GJ Linden</name></author><author><name sortKey="Herzberg, Mc" uniqKey="Herzberg M">MC Herzberg</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Tonetti, Ms" uniqKey="Tonetti M">MS Tonetti</name></author><author><name sortKey="Van Dyke, Te" uniqKey="Van Dyke T">TE Van Dyke</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lockhart, Pb" uniqKey="Lockhart P">PB Lockhart</name></author><author><name sortKey="Bolger, Af" uniqKey="Bolger A">AF Bolger</name></author><author><name sortKey="Papapapanou, Pn" uniqKey="Papapapanou P">PN Papapapanou</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wojtyniak, B" uniqKey="Wojtyniak B">B Wojtyniak</name></author><author><name sortKey="Gory Ski, P" uniqKey="Gory Ski P">P Goryński</name></author><author><name sortKey="Moskalewicz, B" uniqKey="Moskalewicz B">B Moskalewicz</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Go, As" uniqKey="Go A">AS Go</name></author><author><name sortKey="Mozaffarian, D" uniqKey="Mozaffarian D">D Mozaffarian</name></author><author><name sortKey="Roger, Vl" uniqKey="Roger V">VL Roger</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Dietrich, T" uniqKey="Dietrich T">T Dietrich</name></author><author><name sortKey="Sharma, P" uniqKey="Sharma P">P Sharma</name></author><author><name sortKey="Walter, C" uniqKey="Walter C">C Walter</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bochniak, M" uniqKey="Bochniak M">M Bochniak</name></author><author><name sortKey="Sadlak Nowicka, J" uniqKey="Sadlak Nowicka J">J Sadlak-Nowicka</name></author><author><name sortKey="Rynkiewicz, A" uniqKey="Rynkiewicz A">A Rynkiewicz</name></author><author><name sortKey="Kusiek, A" uniqKey="Kusiek A">A Kusiek</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wlosowicz, M" uniqKey="Wlosowicz M">M Włosowicz</name></author><author><name sortKey="Wo Akowska Kaplon, B" uniqKey="Wo Akowska Kaplon B">B Wożakowska-Kapłon</name></author><author><name sortKey="G Rska, R" uniqKey="G Rska R">R Górska</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wo Akowska Kaplon, B" uniqKey="Wo Akowska Kaplon B">B Wożakowska-Kapłon</name></author><author><name sortKey="Wlosowicz, M" uniqKey="Wlosowicz M">M Włosowicz</name></author><author><name sortKey="Gorczyca Michta, I" uniqKey="Gorczyca Michta I">I Gorczyca-Michta</name></author><author><name sortKey="G Rska, R" uniqKey="G Rska R">R Górska</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="G Rski, B" uniqKey="G Rski B">B Górski</name></author><author><name sortKey="Wlososwicz, M" uniqKey="Wlososwicz M">M Włososwicz</name></author><author><name sortKey="Dembowska, E" uniqKey="Dembowska E">E Dembowska</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sosi Ska, K" uniqKey="Sosi Ska K">K Sosińska</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sabbah, W" uniqKey="Sabbah W">W Sabbah</name></author><author><name sortKey="Tsakos, G" uniqKey="Tsakos G">G Tsakos</name></author><author><name 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Prz Menopauzalny</journal-id><journal-id journal-id-type="iso-abbrev">Prz Menopauzalny</journal-id><journal-id journal-id-type="publisher-id">MR</journal-id><journal-title-group><journal-title>Przegla̜d Menopauzalny = Menopause Review</journal-title></journal-title-group><issn pub-type="ppub">1643-8876</issn><issn pub-type="epub">2299-0038</issn><publisher><publisher-name>Termedia Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">26327899</article-id><article-id pub-id-type="pmc">4498022</article-id><article-id pub-id-type="publisher-id">24719</article-id><article-id pub-id-type="doi">10.5114/pm.2015.49331</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Paper</subject></subj-group></article-categories><title-group><article-title>Oral health in postmenopausal and premenopausal women after myocardial infarction in Poland: a preliminary study</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name><surname>Górski</surname><given-names>Bartłomiej</given-names></name></contrib><contrib contrib-type="author"><name><surname>Ganowicz</surname><given-names>Ewa</given-names></name></contrib><contrib contrib-type="author"><name><surname>Górska</surname><given-names>Renata</given-names></name></contrib></contrib-group><aff>Department of Oral Medicine and Periodontal Diseases, Medical University of Warsaw, Warsaw, Poland</aff><author-notes><corresp id="cor1">Corresponding author: <bold>Bartłomiej Górski</bold>, Department of Oral Medicine and Periodontal Diseases, Medical University of Warsaw, 18 Miodowa St., 00-246 Warsaw, Poland. phone/fax: +48 22 831 21 36. e-mail: <email xlink:href="bartek_g3@tlen.pl">bartek_g3@tlen.pl</email></corresp></author-notes><pub-date pub-type="epub"><day>22</day><month>6</month><year>2015</year></pub-date><pub-date pub-type="ppub"><month>6</month><year>2015</year></pub-date><volume>14</volume><issue>2</issue><fpage>118</fpage><lpage>125</lpage><history><date date-type="received"><day>30</day><month>7</month><year>2014</year></date><date date-type="rev-recd"><day>28</day><month>10</month><year>2014</year></date><date date-type="accepted"><day>08</day><month>12</month><year>2014</year></date></history><permissions><copyright-statement>Copyright © 2015 Termedia</copyright-statement><copyright-year>2015</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc-nd/3.0/"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><sec id="st1"><title>Introduction</title><p>Age and hormonal disorders are recognized factors impacting the periodontium and the prevalence of cardiovascular diseases, but as yet the relationship between these two conditions in postmenopausal (post-M) and premenopausal (pre-M) women in Poland has not been assessed. The aim of this study was to compare the periodontal status in women after myocardial infarction (MI) with women without MI history and to determine risk factors for periodontitis.</p></sec><sec id="st2"><title>Material and methods</title><p>The study included 35 women hospitalized due to MI, average age 54.7 ± 9.4 years, and 96 women randomly drawn from the general population, average age 56.1 ± 10.0 years. All women were checked for periodontitis risk factors (education, socioeconomic status, tobacco smoking, stress), and underwent dental examination.</p></sec><sec id="st3"><title>Results</title><p>The lowest number of teeth was found in post-M women after MI (median = 8), whereas pre-M women without MI history had 25 teeth. Edentulousness occurred more frequently in post-M women compared with pre-M women (12.2% vs. 0%), the same was observed for advanced periodontitis (28.4% vs. 21.1%). The severity of periodontitis was highest in the post-M subgroup (more than half demonstrated advanced periodontitis or edentulousness). The most important risk factor for periodontitis, regardless of age, was the level of education. In post-M women the second risk factor was smoking, while in pre-M women negative stress.</p></sec><sec id="st4"><title>Conclusions</title><p>The status of oral health in post-M women is unsatisfactory, particularly in those affected by cardiovascular diseases. It is necessary to take preventive and educational measures targeted at these women.</p></sec></abstract><kwd-group><kwd>menopause</kwd><kwd>periodontal disease</kwd><kwd>myocardial infarction</kwd><kwd>risk factors</kwd><kwd>education</kwd><kwd>tobacco smoking</kwd><kwd>stress</kwd></kwd-group></article-meta></front><body><sec sec-type="intro" id="S0001"><title>Introduction</title><p>Periodontal diseases are diseases that have multifactorial origin, in most cases associated with bacterial etiology. The occurrence and severity of periodontitis correlates with certain risk factors that can be divided into non-modifiable and modifiable ones. The former include: age, male gender, low education and low socioeconomic status [<xref rid="CIT0001" ref-type="bibr">1</xref>]. Cigarette smoking, stress, obesity, and certain systemic diseases (such as diabetes, osteoporosis) constitute modifiable risk factors for periodontal diseases [<xref rid="CIT0001" ref-type="bibr">1</xref>–<xref rid="CIT0003" ref-type="bibr">3</xref>].</p><p>The prevalence of periodontitis increases with age, advanced periodontitis occurs in 1% of people aged 20-29 years, compared to 39% in individuals older than 65 years [<xref rid="CIT0004" ref-type="bibr">4</xref>]. This was confirmed by studies carried out in recent years in Poland, which included randomly selected individuals aged 35-44 and 65-74 years [<xref rid="CIT0005" ref-type="bibr">5</xref>, <xref rid="CIT0006" ref-type="bibr">6</xref>]. Healthy periodontium was observed in 1.62% of patients aged 35-44 and in 0.75% of those aged 65-74 years. The most advanced disease was observed in 19.47% of patients aged 35-44 years and in 31.89% of patients 65-74 years old. The condition of periodontal tissues in females was better than in males.</p><p>Numerous studies indicate a significantly lower prevalence of periodontal diseases in women, which is explained by their better behavior regarding oral health and by environmental factors [<xref rid="CIT0001" ref-type="bibr">1</xref>, <xref rid="CIT0005" ref-type="bibr">5</xref>, <xref rid="CIT0006" ref-type="bibr">6</xref>]. Women demonstrate better oral hygiene, they are less vulnerable to addictions (smoking, alcohol drinking) and visit the dentist more frequently for check-ups. However, women after menopause demonstrated a relationship between resorption of the alveolar bone in maxilla and the alveolar part of the mandible on one hand and osteoporosis on the other hand. Destruction of periodontal tissues was greater in postmenopausal female smokers [<xref rid="CIT0007" ref-type="bibr">7</xref>]. These processes are caused by a decrease in estrogen levels due to termination of the ovarian function. The effect of estrogens on osteoblasts is inhibition of cytokine secretion by these cells (IL-1α, IL-1β, IL-6, TNF-α), which are paracrine stimulators of maturation and osteoblast activity. Thus, with a reduced concentration of estrogen, resorption activity of osteoclasts rises, resulting in increased resorption of periodontal bone structures in postmenopausal women.</p><p>The literature on the subject presents a few classifications of periodontal diseases [<xref rid="CIT0008" ref-type="bibr">8</xref>–<xref rid="CIT0012" ref-type="bibr">12</xref>]. For many years researchers have postulated the existence etiologic relationships between periodontal and cardiovascular diseases, including acute coronary syndromes (ACS) [<xref rid="CIT0013" ref-type="bibr">13</xref>–<xref rid="CIT0016" ref-type="bibr">16</xref>]. In 2010, cardiovascular diseases were responsible for 46.0% of all deaths of Poles (40.8% of male deaths and 51.8% of deaths in women) [<xref rid="CIT0017" ref-type="bibr">17</xref>]. They caused 174,003 deaths, i.e. 456 per 100 thousand of population (469 women per 100 thousand, and 442 men per 100 thousand). Cardiovascular disorders constitute a much more common cause of death among Polish citizens than the average in other countries and in the European Union [<xref rid="CIT0018" ref-type="bibr">18</xref>]. Cardiovascular diseases typically cause more deaths in women than in men, but this is due to the older age structure of women. After eliminating the differences in the two structures, it turns out that these diseases constitute a much greater threat to the lives of men, as the standardized death rate in 2010 for men in Poland was about 69% higher than for women. Cardiovascular diseases are a dominating cause of death of female Poles above 69 years of age, ceding the first place to cancer in the 30-69 years age group, and to external causes in younger women. Nevertheless, this represents a very big social problem, which is also heavy on the insurance system in Poland.</p><p>Epidemiological studies show that patients with periodontitis have a higher risk of coronary heart disease and of acute coronary syndrome [<xref rid="CIT0019" ref-type="bibr">19</xref>]. However, the oral health of Poles with cardiovascular diseases is far from satisfactory [<xref rid="CIT0020" ref-type="bibr">20</xref>–<xref rid="CIT0024" ref-type="bibr">24</xref>]. To date in Poland no epidemiological studies have been carried out, assessing the status of periodontal tissues in women at the menopausal age with acute coronary syndrome. Therefore, the aim of this study was to determine the condition of the periodontal tissues and the number of teeth present in the oral cavity in female patients aged ≥ 55 years freshly after acute myocardial infarction (MI) and in women without cardiovascular conditions, compared to women aged < 55 years, using the Community Periodontal Index (CPI) and the epidemiological classification of periodontitis by Page and Eke. The authors have also attempted to discuss the impact of selected risk factors on periodontal tissue status in women at menopausal and post-menopausal age, compared to younger women.</p></sec><sec sec-type="materials|methods" id="S0002"><title>Material and methods</title><p>The study included 35 female patients hospitalized in the 1<sup>st</sup> Department and Clinic of Cardiology, Medical University of Warsaw due to fresh MI. The inclusion criteria were MI history and age below 70 years. The exclusion criteria were medical history with ongoing neoplastic disease, rheumatic disease, autoimmune disease, chronic liver disease, chronic renal disease stages 4 and 5, and prior stroke.</p><p>The control group consisted of 96 women aged 40 to 69 years with no MI history, drawn by the Ministry of Interior and Administration, who reported to the Department of Oral Medicine and Periodontal Diseases, Medical University of Warsaw.</p><p>The study was carried out in accordance with the Helsinki Declaration of 1975, as revised in 2000 (concerning the ethical principles for the medical community and forbidding releasing the name of the patient, initials or the hospital records number) and with the ethical standards of the responsible committee on human experimentation (institutional and national). All individuals participating in the study gave their consent by signing a declaration approved by the Bioethics Commission at the Medical University of Warsaw (Opinion No. KB-145/2011).</p><p>The study was conducted from 2010 to 2013. The limit for pre- and postmenopausal age was assumed at 55 years. The study group included 35 patients. The average age of this group was 54.7 ± 9.4 years, including 20 women aged ≥ 55 years and 15 women aged < 55 years. The control group included 96 individuals. The average age of this group was 56.1 ± 10.0 years, 54 women were aged ≥ 55 years, and 42 were aged < 55 years.</p><p>A dental examination was performed in artificial light, with the use of a dental mirror and periodontal probe (Hu-Friedy PCPUNC 15) calibrated every millimeter. The pressure force of the probe during measurement did not exceed 0.25 N (25 g). The examination did not include third molars. The clinical examination involved:<list list-type="bullet"><list-item><p>bleeding on probing index (BoP) by Ainamo and Bay [<xref rid="CIT0021" ref-type="bibr">21</xref>]; the examination was conducted at four points around the tooth: mesiobuccal – MB, buccal – B, distobuccal – DB, and lingual – L; only the presence or absence of gingival bleeding during pocket probing was determined, and the BoP value was expressed as a percentage of bleeding sites;</p></list-item><list-item><p>pocket depth (PD) at 4 points around the tooth: MB, B, DB, L, which is defined as the distance from the gingival margin to the bottom of the pocket identified by probing;</p></list-item><list-item><p>clinical attachment level (CAL) at 4 points around the tooth: MB, B, DB, L; which is defined as the distance between the bottom of the pocket identified by probing and the cementoenamel junction.</p></list-item></list></p><p>The periodontal status of each patient was categorized according to the CPI codes:<list list-type="bullet"><list-item><p>CPI-0 – no symptoms of inflammation,</p></list-item><list-item><p>CPI-1 – presence of bleeding on probing,</p></list-item><list-item><p>CPI-2 – presence of supra- and/or subgingival calculus, or overhangs,</p></list-item><list-item><p>CPI-3 – presence of periodontal pockets from 3.5 to 5.5 mm deep,</p></list-item><list-item><p>CPI-4 – presence of periodontal pockets at least 5.5 mm deep.</p></list-item></list></p><p>The diagnosis was also categorized on the basis of the definition of periodontitis by Page and Eke:<list list-type="bullet"><list-item><p>mild periodontitis – 2 or more teeth with CAL ≥ 3 mm on proximal surfaces and 2 or more teeth with PD ≥ 4 mm on proximal surfaces;</p></list-item><list-item><p>moderate periodontitis – 2 or more teeth with CAL ≥ 4 mm on proximal surfaces, or two or more teeth with PD ≥ 5 mm on proximal surfaces;</p></list-item><list-item><p>severe periodontitis – 2 or more teeth with CAL ≥ 6 mm on proximal surfaces and one or more teeth with PD ≥ 5 mm on proximal surfaces;</p></list-item><list-item><p>other clinical situations were defined as “no periodontitis” or healthy periodontium.</p></list-item></list></p><p>The prevalence of selected risk factors for periodontal diseases was determined using medical history provided by the patient:<list list-type="bullet"><list-item><p>education was defined as primary, secondary and higher education;</p></list-item><list-item><p>socioeconomic status was defined on the basis of income per family member: < PLN 800, PLN 800-1500, > PLN 1500 per month;</p></list-item><list-item><p>nicotinism was defined as: current (smoking at least 10 cigarettes per day continuously for a minimum of 5 years), in the past and never;</p></list-item><list-item><p>the presence of negative stress was defined by patients on a 0-1 scale, where 0 – no stress, 1 – frequent negative stress.</p></list-item></list></p><p>The data obtained from history and clinical examinations were statistically analyzed using the PQStat software, with χ<sup>2</sup> test, Kruskal-Wallis ANOVA with post-hoc analysis by Dunn, and backward stepwise multiple regression procedure. The threshold for statistical significance was assumed at <italic>p</italic> < 0.05 for univariate analyses and <italic>p</italic> < 0.2 for multivariate analyses.</p></sec><sec sec-type="results" id="S0003"><title>Results</title><p>A comparative analysis of the number of remaining teeth (<xref ref-type="fig" rid="F0001">Fig. 1</xref>) demonstrated by far the worst situation in the subgroup of postmenopausal women with MI history, whose median number of teeth was only 8. Relatively the largest number of preserved teeth, equal to 25, was observed in the group of younger women (< 55 years) with no history of MI. Postmenopausal women without MI history and premenopausal women after acute coronary syndrome (ACS) belonged to the two moderate groups (median number of teeth was 20 and 17, respectively). The differences between all groups were statistically significant, except for the comparison of the two subgroups of patients without MI history (<xref ref-type="table" rid="T0001">Table I</xref>).
</p><fig id="F0001" position="float"><label>Fig. 1</label><caption><p>Comparison of median teeth number. Kruskal-Wallis ANOVA test, <italic>p</italic> = 0.0001</p></caption><graphic xlink:href="MR-14-24719-g001"></graphic></fig><table-wrap id="T0001" position="float"><label>Tab. I</label><caption><p>Post-hoc analysis of median teeth number, according to Dunn</p></caption><table frame="hsides" rules="rows"><thead><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">No MI, age < 55 years</th><th align="center" rowspan="1" colspan="1">No MI, age ≥ 55 years</th><th align="center" rowspan="1" colspan="1">MI, age < 55 years</th><th align="center" rowspan="1" colspan="1">MI, age ≥ 55 years</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">No MI, age < 55 years</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">0.0255</td><td align="center" rowspan="1" colspan="1">0.0125</td></tr><tr><td align="left" rowspan="1" colspan="1">No MI, age ≥ 55 years</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">< 0.0001</td><td align="center" rowspan="1" colspan="1">0.0007</td></tr><tr><td align="left" rowspan="1" colspan="1">MI, age < 55 years</td><td align="center" rowspan="1" colspan="1">0.0255</td><td align="center" rowspan="1" colspan="1">< 0.0001</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">< 0.0001</td></tr><tr><td align="left" rowspan="1" colspan="1">MI, age ≥ 55 years</td><td align="center" rowspan="1" colspan="1">0.0125</td><td align="center" rowspan="1" colspan="1">0.0007</td><td align="center" rowspan="1" colspan="1">< 0.0001</td><td align="center" rowspan="1" colspan="1">–</td></tr></tbody></table><table-wrap-foot><fn><p>MI – myocardial infarction</p></fn></table-wrap-foot></table-wrap><p><xref ref-type="table" rid="T0002">Table II</xref> presents the assessment of periodontal status in the study groups, expressed by the CPI. Compared to younger women, postmenopausal women demonstrated a significantly higher occurrence of edentulousness and advanced periodontitis, as well as healthy periodontium, thus a greater polarity compared to younger women. Comparison of women after an acute coronary episode to those without MI history explicitly indicated a worse periodontal status in women after MI.</p><table-wrap id="T0002" position="float"><label>Tab. II</label><caption><p>Community periodontal index (CPI) distribution in subgroups</p></caption><table frame="hsides" rules="rows"><thead><tr><th align="left" rowspan="1" colspan="1">CPI classification</th><th align="center" rowspan="1" colspan="1">CPI = 1</th><th align="center" rowspan="1" colspan="1">CPI = 2</th><th align="center" rowspan="1" colspan="1">CPI = 3</th><th align="center" rowspan="1" colspan="1">CPI = 4</th><th align="center" rowspan="1" colspan="1">Edentulous</th><th align="center" rowspan="1" colspan="1">Comparison (χ<sup>2</sup> test)</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">Women after MI (<italic>n</italic> = 35)</td><td align="center" rowspan="1" colspan="1">2 (8.6%)</td><td align="center" rowspan="1" colspan="1">3 (8.6%)</td><td align="center" rowspan="1" colspan="1">11 (31.4%)</td><td align="center" rowspan="1" colspan="1">13 (37.1%)</td><td align="center" rowspan="1" colspan="1">6 (17.1%)</td><td align="center" rowspan="2" valign="middle" colspan="1"><italic>p</italic> = 0.0063</td></tr><tr><td align="left" rowspan="1" colspan="1">Control group (<italic>n</italic> = 97)</td><td align="center" rowspan="1" colspan="1">16 (16.5%)</td><td align="center" rowspan="1" colspan="1">23 (23.7%)</td><td align="center" rowspan="1" colspan="1">32 (33.0%)</td><td align="center" rowspan="1" colspan="1">23 (23.7%)</td><td align="center" rowspan="1" colspan="1">3 (3.1%)</td></tr><tr><td align="left" rowspan="1" colspan="1">Women aged ≥ 55 years (<italic>n</italic> = 74)</td><td align="center" rowspan="1" colspan="1">15 (20.3%)</td><td align="center" rowspan="1" colspan="1">10 (13.5%)</td><td align="center" rowspan="1" colspan="1">19 (25.7%)</td><td align="center" rowspan="1" colspan="1">21 (28.4%)</td><td align="center" rowspan="1" colspan="1">9 (12.2%)</td><td align="center" rowspan="2" valign="middle" colspan="1"><italic>p</italic> = 0.0005</td></tr><tr><td align="left" rowspan="1" colspan="1">Women aged < 55 years (<italic>n</italic> = 57)</td><td align="center" rowspan="1" colspan="1">2 (3.5%)</td><td align="center" rowspan="1" colspan="1">16 (28.1%)</td><td align="center" rowspan="1" colspan="1">24 (42.1%)</td><td align="center" rowspan="1" colspan="1">15 (26.3%)</td><td align="center" rowspan="1" colspan="1">0 (0%)</td></tr></tbody></table><table-wrap-foot><fn><p>MI – myocardial infarction</p></fn></table-wrap-foot></table-wrap><p>When women in the study were divided into four groups, with respect to both age and MI history, the most advanced periodontitis (as expressed by CPI value) was observed in the postmenopausal group with MI history (<xref ref-type="fig" rid="F0002">Fig. 2</xref>) and there was also a difference close to statistical significance between this group and women ≥ 55 years without prior MI (<xref ref-type="table" rid="T0003">Table III</xref>).
</p><fig id="F0002" position="float"><label>Fig. 2</label><caption><p>Comparison of median Community Periodontal Index (CPI) value. Kruskal-Wallis ANOVA test, <italic>p</italic> = 0.0013</p></caption><graphic xlink:href="MR-14-24719-g002"></graphic></fig><table-wrap id="T0003" position="float"><label>Tab. III</label><caption><p>Post-hoc analysis of median community periodontal index (CPI) value, according to Dunn</p></caption><table frame="hsides" rules="rows"><thead><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">No MI, age < 55 years</th><th align="center" rowspan="1" colspan="1">No MI, age ≥ 55 years</th><th align="center" rowspan="1" colspan="1">MI, age < 55 years</th><th align="center" rowspan="1" colspan="1">MI, age ≥ 55 years</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">No MI, age < 55 years</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">0.4621</td></tr><tr><td align="left" rowspan="1" colspan="1">No MI, age ≥ 55 years</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">0.6781</td><td align="center" rowspan="1" colspan="1">0.0675</td></tr><tr><td align="left" rowspan="1" colspan="1">MI, age < 55 years</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">0.6781</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">1.000</td></tr><tr><td align="left" rowspan="1" colspan="1">MI, age ≥ 55 years</td><td align="center" rowspan="1" colspan="1">0.4621</td><td align="center" rowspan="1" colspan="1">0.0675</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">–</td></tr></tbody></table><table-wrap-foot><fn><p>MI – myocardial infarction</p></fn></table-wrap-foot></table-wrap><p>When the classification of periodontal status by Page and Eke was used for comparison, it yielded slightly different results – postmenopausal women demonstrated visibly worse periodontal health compared to the younger ones: increased occurrence of edentulousness and advanced periodontitis, with less frequent occurrence of healthy periodontium and mild periodontitis (<xref ref-type="table" rid="T0004">Table IV</xref>). Also in the group with MI history, edentulousness and advanced periodontitis were observed more frequently than in women without MI, but the absence of disease or mild periodontitis were observed in fewer cases.
</p><table-wrap id="T0004" position="float"><label>Tab. IV</label><caption><p>Page and Eke classes distribution in subgroups</p></caption><table frame="hsides" rules="rows"><thead><tr><th align="left" rowspan="1" colspan="1">Page and Eke classification</th><th align="center" rowspan="1" colspan="1">No periodontitis</th><th align="center" rowspan="1" colspan="1">Mild periodontitis</th><th align="center" rowspan="1" colspan="1">Moderate periodontitis</th><th align="center" rowspan="1" colspan="1">Advanced periodontitis</th><th align="center" rowspan="1" colspan="1">Edentulous</th><th align="center" rowspan="1" colspan="1">Comparison (χ<sup>2</sup> test)</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">Women after MI (<italic>n</italic> = 35)</td><td align="center" rowspan="1" colspan="1">4 (11.4%)</td><td align="center" rowspan="1" colspan="1">0</td><td align="center" rowspan="1" colspan="1">12 (34.3%)</td><td align="center" rowspan="1" colspan="1">13 (37.1%)</td><td align="center" rowspan="1" colspan="1">6 (17.1%)</td><td align="center" rowspan="2" valign="middle" colspan="1"><italic>p</italic> = 0.0039</td></tr><tr><td align="left" rowspan="1" colspan="1">Control group (<italic>n</italic> = 97)</td><td align="center" rowspan="1" colspan="1">28 (28.9%)</td><td align="center" rowspan="1" colspan="1">4 (4.1%)</td><td align="center" rowspan="1" colspan="1">42 (43.3%)</td><td align="center" rowspan="1" colspan="1">20 (20.6%)</td><td align="center" rowspan="1" colspan="1">3 (3.1%)</td></tr><tr><td align="left" rowspan="1" colspan="1">Women aged ≥ 55 years (<italic>n</italic> = 74)</td><td align="center" rowspan="1" colspan="1">16 (21.6%)</td><td align="center" rowspan="1" colspan="1">1 (1.4%)</td><td align="center" rowspan="1" colspan="1">27 (36.5%)</td><td align="center" rowspan="1" colspan="1">21 (28.4%)</td><td align="center" rowspan="1" colspan="1">9 (12.2%)</td><td align="center" rowspan="2" valign="middle" colspan="1"><italic>p</italic> = 0.0334</td></tr><tr><td align="left" rowspan="1" colspan="1">Women aged < 55 years (<italic>n</italic> = 57)</td><td align="center" rowspan="1" colspan="1">15 (26.3%)</td><td align="center" rowspan="1" colspan="1">3 (5.3%)</td><td align="center" rowspan="1" colspan="1">27 (47.4%)</td><td align="center" rowspan="1" colspan="1">12 (21.1%)</td><td align="center" rowspan="1" colspan="1">0</td></tr></tbody></table><table-wrap-foot><fn><p>MI – myocardial infarction</p></fn></table-wrap-foot></table-wrap><p>However, a comparison of the women regarding the periodontal status using the Page and Eke classification, including MI history and age, revealed that MI history made a bigger difference than age (<xref ref-type="fig" rid="F0003">Fig. 3</xref> and <xref ref-type="table" rid="T0005">Table V</xref>), although a noticeably higher degree of severity of periodontitis was observed in postmenopausal women compared to premenopausal individuals.
</p><fig id="F0003" position="float"><label>Fig. 3</label><caption><p>Comparison of median Page and Eke class. Kruskal-Wallis ANOVA test, <italic>p</italic> = 0.0005</p></caption><graphic xlink:href="MR-14-24719-g003"></graphic></fig><table-wrap id="T0005" position="float"><label>Tab. V</label><caption><p>Post-hoc analysis of median Page and Eke class, according to Dunn</p></caption><table frame="hsides" rules="rows"><thead><tr><th align="left" rowspan="1" colspan="1"></th><th align="center" rowspan="1" colspan="1">No MI, age < 55 years</th><th align="center" rowspan="1" colspan="1">No MI, age ≥ 55 years</th><th align="center" rowspan="1" colspan="1">MI, age < 55 years</th><th align="center" rowspan="1" colspan="1">MI, age ≥ 55 years</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">No MI, age < 55 years</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">0.1108</td><td align="center" rowspan="1" colspan="1">0.2032</td><td align="center" rowspan="1" colspan="1">0.0028</td></tr><tr><td align="left" rowspan="1" colspan="1">No MI, age ≥ 55 years</td><td align="center" rowspan="1" colspan="1">0.1108</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">0.6302</td></tr><tr><td align="left" rowspan="1" colspan="1">MI, age < 55 years</td><td align="center" rowspan="1" colspan="1">0.2032</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">–</td><td align="center" rowspan="1" colspan="1">1.000</td></tr><tr><td align="left" rowspan="1" colspan="1">MI, age ≥ 55 years</td><td align="center" rowspan="1" colspan="1">0.0028</td><td align="center" rowspan="1" colspan="1">0.6302</td><td align="center" rowspan="1" colspan="1">1.000</td><td align="center" rowspan="1" colspan="1">–</td></tr></tbody></table><table-wrap-foot><fn><p>MI – myocardial infarction</p></fn></table-wrap-foot></table-wrap><p>The correlation between the presence of specific risk factors and the severity of periodontitis was also assessed in the group of women aged ≥ 55 years and in those aged < 55 years (<xref ref-type="table" rid="T0006">Table VI</xref>). In the group of postmenopausal women a statistically significant relationship was observed for the level of education (<italic>p</italic> = 0.0393), tobacco smoking (<italic>p</italic> = 0.0225) and the level of income (<italic>p</italic> = 0.0137). In the group of premenopausal women, the significant factors correlating with the periodontal status proved to be education (<italic>p</italic> < 0.0001) and income (<italic>p</italic> = 0.0071), and a relationship close to the significance level was observed for stress (<italic>p</italic> = 0.0686).
</p><table-wrap id="T0006" position="float"><label>Tab. VI</label><caption><p>Correlation between the periodontal state (expressed as Page & Eke class) and potential risk factors in women of premenopausal and postmenopausal age</p></caption><table frame="hsides" rules="rows"><thead><tr><th align="left" rowspan="2" valign="top" colspan="1">Factors</th><th align="center" colspan="4" rowspan="1">Periodontal state (median Page & Eke class)</th></tr><tr><th align="center" rowspan="1" colspan="1">Women aged ≥ 55 (<italic>n</italic> = 74)</th><th align="center" rowspan="1" colspan="1">Comparison (Kruskal-Wallis ANOVA)</th><th align="center" rowspan="1" colspan="1">Women aged < 55 (<italic>n</italic> = 57)</th><th align="center" rowspan="1" colspan="1">Comparison (Kruskal-Wallis ANOVA)</th></tr></thead><tbody><tr><td align="left" rowspan="1" colspan="1">Education</td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td></tr><tr><td align="left" rowspan="1" colspan="1"> Primary</td><td align="center" rowspan="1" colspan="1">4</td><td align="center" rowspan="3" valign="middle" colspan="1"><italic>p</italic> = 0.0393</td><td align="center" rowspan="1" colspan="1">4</td><td align="center" rowspan="3" valign="middle" colspan="1"><italic>p</italic> < 0.0001</td></tr><tr><td align="left" rowspan="1" colspan="1"> Secondary</td><td align="center" rowspan="1" colspan="1">3</td><td align="center" rowspan="1" colspan="1">3</td></tr><tr><td align="left" rowspan="1" colspan="1"> University</td><td align="center" rowspan="1" colspan="1">3</td><td align="center" rowspan="1" colspan="1">3</td></tr><tr><td align="left" rowspan="1" colspan="1">Smoking</td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td></tr><tr><td align="left" rowspan="1" colspan="1"> Never</td><td align="center" rowspan="1" colspan="1">3</td><td align="center" rowspan="3" valign="middle" colspan="1"><italic>p</italic> = 0.0225</td><td align="center" rowspan="1" colspan="1">3</td><td align="center" rowspan="3" valign="middle" colspan="1"><italic>p</italic> = 0.3740</td></tr><tr><td align="left" rowspan="1" colspan="1"> Past smoker</td><td align="center" rowspan="1" colspan="1">3</td><td align="center" rowspan="1" colspan="1">3</td></tr><tr><td align="left" rowspan="1" colspan="1"> Current smoker</td><td align="center" rowspan="1" colspan="1">4</td><td align="center" rowspan="1" colspan="1">3</td></tr><tr><td align="left" rowspan="1" colspan="1">Stress</td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td></tr><tr><td align="left" rowspan="1" colspan="1"> Low</td><td align="center" rowspan="1" colspan="1">4</td><td align="center" rowspan="2" valign="middle" colspan="1"><italic>p</italic> = 0.8537</td><td align="center" rowspan="1" colspan="1">3</td><td align="center" rowspan="2" valign="middle" colspan="1"><italic>p</italic> = 0.0686</td></tr><tr><td align="left" rowspan="1" colspan="1"> High</td><td align="center" rowspan="1" colspan="1">4</td><td align="center" rowspan="1" colspan="1">3</td></tr><tr><td align="left" rowspan="1" colspan="1">Income</td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td><td align="center" rowspan="1" colspan="1"></td></tr><tr><td align="left" rowspan="1" colspan="1"> Low<xref ref-type="table-fn" rid="TF0001">*</xref></td><td align="center" rowspan="1" colspan="1">4</td><td align="center" rowspan="3" valign="middle" colspan="1"><italic>p</italic> = 0.0137</td><td align="center" rowspan="1" colspan="1">4</td><td align="center" rowspan="3" valign="middle" colspan="1"><italic>p</italic> = 0.0071</td></tr><tr><td align="left" rowspan="1" colspan="1"> Medium<xref ref-type="table-fn" rid="TF0002">**</xref></td><td align="center" rowspan="1" colspan="1">3</td><td align="center" rowspan="1" colspan="1">3</td></tr><tr><td align="left" rowspan="1" colspan="1"> High<xref ref-type="table-fn" rid="TF0003">***</xref></td><td align="center" rowspan="1" colspan="1">4</td><td align="center" rowspan="1" colspan="1">3</td></tr></tbody></table><table-wrap-foot><fn id="TF0001"><label>*</label><p>< PLN 800 (< EUR 200);</p></fn><fn id="TF0002"><label>**</label><p>PLN 800-1500 (EUR 200-360);</p></fn><fn id="TF0003"><label>***</label><p>> PLN 1500 (> EUR 360)</p></fn></table-wrap-foot></table-wrap><p>The last stage was a multivariate analysis of potential risk factors for periodontal diseases (<xref ref-type="table" rid="T0007">Table VII</xref>). This analysis was conducted separately for post- and premenopausal women, in order to determine whether these groups demonstrate differences concerning the degree to which various factors impact the occurrence of periodontitis. It was observed that in both groups the most important risk factor was the level of education. The second factor was smoking in the case of women aged ≥ 55 years, while in women aged < 55 years – the presence of negative stress.
</p><table-wrap id="T0007" position="float"><label>Tab. VII</label><caption><p>Potential risk factors for periodontitis in women aged ≥ 55 years and < 55 years. Factors included in multifactorial analysis: fresh myocardial infarction (MI), education, smoking, stress, income</p></caption><table frame="hsides" rules="rows"><tbody><tr><td align="center" colspan="3" rowspan="1"><bold>Model of periodontitis risk factors (periodontitis classified according to Page and Eke)</bold><break></break><bold>Women aged ≥ 55 years</bold><break></break><bold>Multiple backward stepwise regression. <italic>R</italic><sup><italic>2</italic></sup> = 0.1680; <italic>p</italic> for model = 0.0064</bold></td></tr><tr><td align="left" rowspan="1" colspan="1"><bold>Independent variable</bold></td><td align="center" rowspan="1" colspan="1"><bold>Standardized <italic>b</italic> coefficient</bold></td><td align="center" rowspan="1" colspan="1"><bold><italic>p</italic> value</bold></td></tr><tr><td align="left" rowspan="1" colspan="1">Education</td><td align="center" rowspan="1" colspan="1">–0.2787</td><td align="center" rowspan="1" colspan="1">0.0283</td></tr><tr><td align="left" rowspan="1" colspan="1">Smoking</td><td align="center" rowspan="1" colspan="1">0.2715</td><td align="center" rowspan="1" colspan="1">0.0324</td></tr><tr><td colspan="3" align="center" rowspan="1"><bold>Women aged < 55 years</bold><break></break><bold>Multiple backward stepwise regression.</bold><break></break><bold><italic>R<sup>2</sup></italic> = 0.3990; <italic>p</italic> for model < 0.0001</bold></td></tr><tr><td align="left" rowspan="1" colspan="1"><bold>Independent variable</bold></td><td align="center" rowspan="1" colspan="1"><bold>Standardized <italic>b</italic> coefficient</bold></td><td align="center" rowspan="1" colspan="1"><bold><italic>p</italic> value</bold></td></tr><tr><td align="left" rowspan="1" colspan="1">Education</td><td align="center" rowspan="1" colspan="1">–0.5735</td><td align="center" rowspan="1" colspan="1">< 0.0001</td></tr><tr><td align="left" rowspan="1" colspan="1">Stress</td><td align="center" rowspan="1" colspan="1">0.1775</td><td align="center" rowspan="1" colspan="1">0.1682</td></tr></tbody></table></table-wrap></sec><sec sec-type="discussion" id="S0004"><title>Discussion</title><p>Studies assessing the condition of periodontal tissues in patients with cardiovascular diseases in Poland have included more men than women, unfortunately the periodontal status depending on gender has not been compared [<xref rid="CIT0020" ref-type="bibr">20</xref>, <xref rid="CIT0023" ref-type="bibr">23</xref>].</p><p>Włosowicz <italic>et al</italic>. [<xref rid="CIT0019" ref-type="bibr">19</xref>, <xref rid="CIT0022" ref-type="bibr">22</xref>], using the classification of periodontal diseases by American Academy of Periodontology (AAP), studied 112 patients (27 females and 85 males) after MI, and 67 patients (24 females and 43 males) with stable angina pectoris aged 53.4 (± 6.5) years, and observed mild periodontitis in 32% of women, advanced periodontitis in 15% and edentulousness in 26% of women. These results were considerably better than in men, where the scores were 65%, 85% and 74%, respectively. Thus, the situation described by these authors differed significantly from the results of our study, where – although lower prevalence of edentulousness in women after MI (17.1%) was observed, and 11.4% of women did not have periodontitis – advanced periodontitis occurred much more frequently (37.1%). The status of periodontal tissues was better in women without cardiovascular history, which is reflected by a lower edentulousness rate – 3.1%, and lower occurrence of advanced periodontitis – 20.6%.</p><p>Sosińska [<xref rid="CIT0024" ref-type="bibr">24</xref>] also examined 160 patients (35 women, 125 men) aged 33-65 years hospitalized due to MI. Seventeen percent (17.14%) of women were aged 45-54 years, and 82.96% were 55-65 years old. Using the CPI classification, the author confirmed a better status of periodontal tissues of the hospitalized women, where 7.69% were classified with the CPI-2 code, half of the women with the CPI-3, and slightly fewer – 42.31% – with the CPI-4 code. The values for men were 0.94%, 36.79%, 62.26%, respectively. In our study, the CPI-2 code was observed in 8.6% of women after MI, the CPI-3 code in 31.4%, the CPI-4 code in 37.1% of women, so the results were similar to those reported by the quoted authors.</p><p>Similar results were obtained by Sosińska with the use of the definition of periodontitis by Page and Eke. The author recorded 9.85% of individuals who were healthy or had mild periodontitis (19.23% of women and 7.55% of men). On average, moderate periodontitis was observed in 36.36% of patients (46.15% of women and 33.96% of men). Severe periodontitis was diagnosed in 53.78% of patients (34.62% of women and 58.49% of men). As for the status of dentition in the study group, 17.50% of edentulous individuals were observed. A higher percentage of edentulousness occurred in women (25.71%) than in men (15.20%). Among men, the percentage of patients with more than six teeth was higher (73.60%) than in women (28.57%). The relationships between the number of teeth and gender were statistically significant. Our findings are very similar for women after MI, while the status of periodontal tissues in women in the control group, evaluated with the use of the epidemiological definition by Page and Eke, is definitely better. An assessment of the number of remaining teeth showed a dramatic situation in postmenopausal women with MI history, where the median for the number of teeth was only 8. By comparison, in premenopausal women with no MI history the median number of remaining teeth was 25.</p><p>Therefore, it should be postulated that the poorer condition of periodontal tissues assessed with both the CPI scale as well as with the epidemiological definition by Page and Eke concerned the women after MI, compared to women without cardiovascular history. Considering the age, poorer results were observed in women older than 55 years, that is in the postmenopausal period. When the studied women were divided into four groups, with regard to both age and MI history, the most advanced periodontitis was observed in the postmenopausal group after MI. The importance of age as a risk factor for periodontal diseases has been confirmed in many studies on large samples in Poland as well as across the world [<xref rid="CIT0001" ref-type="bibr">1</xref>, <xref rid="CIT0004" ref-type="bibr">4</xref>–<xref rid="CIT0006" ref-type="bibr">6</xref>]. This may be due to the cumulative action of dental plaque and/or aging of the body, which results in reduced immunological resistance and increased susceptibility to infections.</p><p>While assessing selected risk factors for periodontal diseases, it was found that education and income levels correlated with the status of periodontium regardless of the age of female patients. Smoking correlated with the index of the periodontal status only in the group of postmenopausal women, while the relationship between the severity of periodontitis and stress affected only younger women.</p><p>Due to the existing relationships between individual risk factors, they were subjected to a backward stepwise multiple regression analysis. On the basis of this analysis, it was observed that the level of education was the most significant risk factor, both in postmenopausal women (standardized coefficient <italic>b</italic> = –0.2787, <italic>p</italic> = 0.0283) and in premenopausal women (standardized coefficient <italic>b</italic> = –0.5735, <italic>p</italic> < 0.0001). The second factor was smoking in the case of women aged ≥ 55 years (standardized coefficient <italic>b</italic> = 0.2715, <italic>p</italic> = 0.0324), whereas in women < 55 years – the level of experienced stress (standardized coefficient <italic>b</italic> = 0.1775, <italic>p</italic> = 0.1682).</p><p>It should be noted that the absence of other factors among the parameters demonstrating an independent correlation with periodontal status does not mean that they do not play any role at all. However, it confirms the existence of interrelationships between individual risk factors – such as socioeconomic status, widely considered to be one of the risk factors for periodontitis, can be derived from the level of education. Also other authors reached similar conclusions. In the NHANES 2009-2010 study, 66.9% of Americans with other than higher education suffered from periodontitis, while in the group with higher education the percentage was 39.3% [<xref rid="CIT0001" ref-type="bibr">1</xref>]. Taking into account the income criterion, periodontitis was observed in 65.4% of individuals with the lowest income, which contrasts with only 35.4% of periodontal patients in the group with the best socioeconomic status [<xref rid="CIT0001" ref-type="bibr">1</xref>]. Sabbah <italic>et al</italic>. [<xref rid="CIT0025" ref-type="bibr">25</xref>] suggest that the socioeconomic status should not be treated as a whole, because the intensity of social contacts does not correlate with the level of wealth, and each of these factors separately affects the periodontal status.</p><p>Absence of tobacco smoking should be interpreted similarly as an independent risk factor in women aged < 55 years. This is not to question the impact of smoking – its influence on the development of periodontal diseases has been investigated quite thoroughly [<xref rid="CIT0003" ref-type="bibr">3</xref>, <xref rid="CIT0007" ref-type="bibr">7</xref>, <xref rid="CIT0026" ref-type="bibr">26</xref>]. Smoking determined by the dose-effect relationship and duration of the addiction negatively affect the status of periodontal tissues and cause a worse response to periodontal treatment [<xref rid="CIT0001" ref-type="bibr">1</xref>, <xref rid="CIT0011" ref-type="bibr">11</xref>, <xref rid="CIT0022" ref-type="bibr">22</xref>, <xref rid="CIT0027" ref-type="bibr">27</xref>]. This is due to increased production of inflammatory mediators: prostaglandin 2 (PGE2) and interleukin-1 (IL-1), growth of anaerobic bacteria (<italic>Tannerella forsythia</italic>), increase in the activity of proteolytic enzymes and to multifaceted immune disorders. However, a relationship between smoking and the level of education, the socioeconomic status as well as experienced stress can be expected, which is also confirmed by other studies [<xref rid="CIT0028" ref-type="bibr">28</xref>]. In the present study a negative impact of active nicotinism on the periodontal tissue status in postmenopausal women was observed, which can be explained as the result of accumulation during exposure to smoking, the effects of which become visible after 55 years of age. In the NHANES 2009-2010 study in the U.S., periodontitis among current smokers occurred in 64.2% of patients, and in 39.8% of non-smokers who had never smoked [<xref rid="CIT0001" ref-type="bibr">1</xref>].</p><p>The importance of stress in the pathomechanism of periodontal diseases is not fully understood. It seems that mental stress could be conducive to neglecting hygiene, diet changes, more frequent smoking, which may interfere with immunological processes and intensify changes in the defense system [<xref rid="CIT0003" ref-type="bibr">3</xref>]. In the current study this parameter was identified in the zero-one system, and the presence of stress correlated with the status of periodontal tissues in women aged under 55 years. Perhaps younger patients turned to smoking as a way of coping with stress, which would explain the significance of this phenomenon in the progression of periodontal diseases in the postmenopausal period.</p><p>The results of the study allow identification of the factors on which to focus in potential prevention campaigns aimed at women of all ages. The strongest relationship between the periodontal status and education is also an indication that those campaigns should be targeted mainly at women with primary education or vocational training. The effectiveness of such an approach can only be assessed in the future, when practical steps are undertaken. The problem of nicotine addiction should not be omitted, and postmenopausal women constitute the group which should be targeted with particularly intensive actions.</p><p>To the best of the authors’ knowledge, this is the first epidemiological study in Poland designed to compare the periodontal status of women in the menopausal and postmenopausal period of life suffering from acute coronary syndrome with healthy subjects. The study results clearly indicate the wide prevalence of periodontitis among Polish women of pre- and postmenopausal age, and the problem is greater in patients after MI. An additional merit of this work is an assessment of the patients’ periodontal tissue status using not only the CPI, but also the definition of periodontitis by Page and Eke, which may be useful in comparative analyses in studies of other researchers.</p><p>The findings in this study are subject to some limitations. Firstly, the results of periodontal parameter examinations (BoP, PD, CAL) were recorded at four measurement sites, which could affect the underestimation of diagnoses. Secondly, third molars were not assessed due to methodological problems associated with the position of these teeth in the oral cavity. Thirdly, the study group had a small number of women, which was associated with a relatively small number of women hospitalized due to MI (compared to men), who met the age criteria despite the fact that the study was conducted for three years, thus this study deserves to be continued to confirm the obtained results on a larger population of women. Fourthly, the reportability of patients in the control group was 10%, and the majority of patients registered because of ailments specific to periodontopathies, which is reflected in the poor periodontal tissue status in those individuals. It is advisable to carry out research on a larger sample, which would address the above mentioned difficulties.</p></sec><sec sec-type="conclusions" id="S0005"><title>Conclusions</title><p>Oral health expressed with the number of remaining teeth, edentulousness index and periodontal diagnosis was decidedly the worst in postmenopausal women with MI history. The most important risk factor for periodontal diseases proved to be the level of education, both in postmenopausal and premenopausal women. The second factor was smoking in the case of women aged ≥ 55 years and in women aged < 55 years – the level of experienced stress. 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