Using classification and regression tree modelling to investigate response shift patterns in dentine hypersensitivity
Identifieur interne : 007139 ( Ncbi/Merge ); précédent : 007138; suivant : 007140Using classification and regression tree modelling to investigate response shift patterns in dentine hypersensitivity
Auteurs : Carolina Machuca [Royaume-Uni] ; Mario V. Vettore [Royaume-Uni] ; Marta Krasuska [Royaume-Uni] ; Sarah R. Baker [Royaume-Uni] ; Peter G. Robinson [Royaume-Uni]Source :
- BMC Medical Research Methodology [ 1471-2288 ] ; 2017.
Abstract
Dentine hypersensitivity (DH) affects people’s quality of life (QoL). However changes in the internal meaning of QoL, known as Response shift (RS) may undermine longitudinal assessment of QoL. This study aimed to describe patterns of RS in people with DH using Classification and Regression Trees (CRT) and to explore the convergent validity of CRT with the then-test and ideals approaches.
Data from an 8-week clinical trial of mouthwashes for dentine hypersensitivity (
Overall, 50.7% of participants experienced a clinical improvement in their DH after treatment and 22.7% experienced an important improvement in their quality of life. Thirty-six per cent shifted their internal standards downward and 14.7% upwards, suggesting recalibration. Reprioritization occurred over time among the social and emotional impacts of DH.
CRT was a useful method to reveal both, the types and nature of RS in people with a mild health condition and demonstrated convergent validity with design based approaches to detect RS.
Url:
DOI: 10.1186/s12874-017-0396-3
PubMed: 28806921
PubMed Central: 5556975
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<front><div type="abstract" xml:lang="en"><sec><title>Background</title>
<p id="Par1">Dentine hypersensitivity (DH) affects people’s quality of life (QoL). However changes in the internal meaning of QoL, known as Response shift (RS) may undermine longitudinal assessment of QoL. This study aimed to describe patterns of RS in people with DH using Classification and Regression Trees (CRT) and to explore the convergent validity of CRT with the then-test and ideals approaches.</p>
</sec>
<sec><title>Methods</title>
<p id="Par2">Data from an 8-week clinical trial of mouthwashes for dentine hypersensitivity (<italic>n</italic>
= 75) using the Dentine Hypersensitivity Experience Questionnaire (DHEQ) as the outcome measure, were analysed. CRT was used to examine 8-week changes in DHEQ total score as a dependent variable with clinical status for DH and each DHEQ subscale score (restrictions, coping, social, emotional and identity) as independent variables. Recalibration was inferred when the clinical change was not consistent with the DHEQ change score using a minimally important difference for DHEQ of 22 points. Reprioritization was inferred by changes in the relative importance of each subscale to the model over time.</p>
</sec>
<sec><title>Results</title>
<p id="Par3">Overall, 50.7% of participants experienced a clinical improvement in their DH after treatment and 22.7% experienced an important improvement in their quality of life. Thirty-six per cent shifted their internal standards downward and 14.7% upwards, suggesting recalibration. Reprioritization occurred over time among the social and emotional impacts of DH.</p>
</sec>
<sec><title>Conclusions</title>
<p id="Par4">CRT was a useful method to reveal both, the types and nature of RS in people with a mild health condition and demonstrated convergent validity with design based approaches to detect RS.</p>
</sec>
</div>
</front>
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<pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">BMC Med Res Methodol</journal-id>
<journal-id journal-id-type="iso-abbrev">BMC Med Res Methodol</journal-id>
<journal-title-group><journal-title>BMC Medical Research Methodology</journal-title>
</journal-title-group>
<issn pub-type="epub">1471-2288</issn>
<publisher><publisher-name>BioMed Central</publisher-name>
<publisher-loc>London</publisher-loc>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">28806921</article-id>
<article-id pub-id-type="pmc">5556975</article-id>
<article-id pub-id-type="publisher-id">396</article-id>
<article-id pub-id-type="doi">10.1186/s12874-017-0396-3</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Using classification and regression tree modelling to investigate response shift patterns in dentine hypersensitivity</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">http://orcid.org/0000-0001-6432-5902</contrib-id>
<name><surname>Machuca</surname>
<given-names>Carolina</given-names>
</name>
<address><phone>+44 (0) 1142717877</phone>
<email>camachucavargas1@sheffield.ac.uk</email>
</address>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Vettore</surname>
<given-names>Mario V.</given-names>
</name>
<address><email>m.vettore@sheffield.ac.uk</email>
</address>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Krasuska</surname>
<given-names>Marta</given-names>
</name>
<address><email>m.krasuska@sheffield.ac.uk</email>
</address>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Baker</surname>
<given-names>Sarah R.</given-names>
</name>
<address><email>s.r.baker@sheffield.ac.uk</email>
</address>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Robinson</surname>
<given-names>Peter G.</given-names>
</name>
<address><email>peter.g.robinson@bristol.ac.uk</email>
</address>
<xref ref-type="aff" rid="Aff2">2</xref>
</contrib>
<aff id="Aff1"><label>1</label>
<institution-wrap><institution-id institution-id-type="ISNI">0000 0004 1936 9262</institution-id>
<institution-id institution-id-type="GRID">grid.11835.3e</institution-id>
<institution>School of Clinical Dentistry,</institution>
<institution>University of Sheffield,</institution>
</institution-wrap>
Sheffield, UK</aff>
<aff id="Aff2"><label>2</label>
<institution-wrap><institution-id institution-id-type="ISNI">0000 0004 1936 7603</institution-id>
<institution-id institution-id-type="GRID">grid.5337.2</institution-id>
<institution>School of Oral and Dental Sciences,</institution>
<institution>University of Bristol,</institution>
</institution-wrap>
Bristol, UK</aff>
</contrib-group>
<pub-date pub-type="epub"><day>14</day>
<month>8</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="pmc-release"><day>14</day>
<month>8</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="collection"><year>2017</year>
</pub-date>
<volume>17</volume>
<elocation-id>120</elocation-id>
<history><date date-type="received"><day>12</day>
<month>1</month>
<year>2017</year>
</date>
<date date-type="accepted"><day>2</day>
<month>8</month>
<year>2017</year>
</date>
</history>
<permissions><copyright-statement>© The Author(s). 2017</copyright-statement>
<license license-type="OpenAccess"><license-p><bold>Open Access</bold>
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</ext-link>
), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/publicdomain/zero/1.0/">http://creativecommons.org/publicdomain/zero/1.0/</ext-link>
) applies to the data made available in this article, unless otherwise stated.</license-p>
</license>
</permissions>
<abstract id="Abs1"><sec><title>Background</title>
<p id="Par1">Dentine hypersensitivity (DH) affects people’s quality of life (QoL). However changes in the internal meaning of QoL, known as Response shift (RS) may undermine longitudinal assessment of QoL. This study aimed to describe patterns of RS in people with DH using Classification and Regression Trees (CRT) and to explore the convergent validity of CRT with the then-test and ideals approaches.</p>
</sec>
<sec><title>Methods</title>
<p id="Par2">Data from an 8-week clinical trial of mouthwashes for dentine hypersensitivity (<italic>n</italic>
= 75) using the Dentine Hypersensitivity Experience Questionnaire (DHEQ) as the outcome measure, were analysed. CRT was used to examine 8-week changes in DHEQ total score as a dependent variable with clinical status for DH and each DHEQ subscale score (restrictions, coping, social, emotional and identity) as independent variables. Recalibration was inferred when the clinical change was not consistent with the DHEQ change score using a minimally important difference for DHEQ of 22 points. Reprioritization was inferred by changes in the relative importance of each subscale to the model over time.</p>
</sec>
<sec><title>Results</title>
<p id="Par3">Overall, 50.7% of participants experienced a clinical improvement in their DH after treatment and 22.7% experienced an important improvement in their quality of life. Thirty-six per cent shifted their internal standards downward and 14.7% upwards, suggesting recalibration. Reprioritization occurred over time among the social and emotional impacts of DH.</p>
</sec>
<sec><title>Conclusions</title>
<p id="Par4">CRT was a useful method to reveal both, the types and nature of RS in people with a mild health condition and demonstrated convergent validity with design based approaches to detect RS.</p>
</sec>
</abstract>
<custom-meta-group><custom-meta><meta-name>issue-copyright-statement</meta-name>
<meta-value>© The Author(s) 2017</meta-value>
</custom-meta>
</custom-meta-group>
</article-meta>
</front>
</pmc>
<affiliations><list><country><li>Royaume-Uni</li>
</country>
</list>
<tree><country name="Royaume-Uni"><noRegion><name sortKey="Machuca, Carolina" sort="Machuca, Carolina" uniqKey="Machuca C" first="Carolina" last="Machuca">Carolina Machuca</name>
</noRegion>
<name sortKey="Baker, Sarah R" sort="Baker, Sarah R" uniqKey="Baker S" first="Sarah R." last="Baker">Sarah R. Baker</name>
<name sortKey="Krasuska, Marta" sort="Krasuska, Marta" uniqKey="Krasuska M" first="Marta" last="Krasuska">Marta Krasuska</name>
<name sortKey="Robinson, Peter G" sort="Robinson, Peter G" uniqKey="Robinson P" first="Peter G." last="Robinson">Peter G. Robinson</name>
<name sortKey="Vettore, Mario V" sort="Vettore, Mario V" uniqKey="Vettore M" first="Mario V." last="Vettore">Mario V. Vettore</name>
</country>
</tree>
</affiliations>
</record>
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