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Exploring the construct of subjective sleep quality in patients with insomnia.

Identifieur interne : 001D74 ( Main/Exploration ); précédent : 001D73; suivant : 001D75

Exploring the construct of subjective sleep quality in patients with insomnia.

Auteurs : Jessica A. Hartmann [Australie] ; Colleen E. Carney ; Angela Lachowski ; Jack D. Edinger

Source :

RBID : pubmed:26132684

Descripteurs français

English descriptors

Abstract

OBJECTIVE

The construct of subjective sleep quality is poorly understood. One widely used measure of subjective sleep quality is the Pittsburgh Sleep Quality Index (PSQI). The role of psychiatric illness in the association between the PSQI and a prospective, sleep diary-derived sleep quality measure (SDSQ) was investigated plus the degree to which the PSQI may reflect mood states.

METHOD

A sample of 211 insomnia patients (International Classification of Sleep Disorders, Second Edition) divided by the presence or absence of a comorbid psychiatric disorder (DSM-IV-TR) and recruited between January 2004 and February 2009, completed the PSQI (primary outcome) and 2 weeks of sleep diary monitoring. First, correlations between PSQI and SDSQ were compared; second, regression analyses were used to investigate whether the association between PSQI and SDSQ depends on diagnostic status; third, the differences in sleep quality between the groups, plus the contribution of anxiety and depression in explaining these differences, were explored.

RESULTS

The correlation between PSQI and SDSQ was significant only in the nonpsychiatric group (P < .001). The association between PSQI and SDSQ was moderated by diagnostic status: it was weaker in psychiatric patients (P = .047). Patients with psychiatric comorbidity scored significantly higher on the PSQI than those without (P < .001); this difference disappeared after controlling for anxiety. There were no group differences for the SDSQ.

CONCLUSIONS

The present findings suggest that (1) psychiatric patients may be more biased in their retrospective sleep quality ratings, and (2) the PSQI total score may reflect sleep-related distress. The use of a prospective sleep diary measure in patients with a psychiatric disorder is recommended.


DOI: 10.4088/JCP.14m09066
PubMed: 26132684


Affiliations:


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Le document en format XML

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<title xml:lang="en">Exploring the construct of subjective sleep quality in patients with insomnia.</title>
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<name sortKey="Hartmann, Jessica A" sort="Hartmann, Jessica A" uniqKey="Hartmann J" first="Jessica A" last="Hartmann">Jessica A. Hartmann</name>
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<nlm:affiliation>Orygen, The National Centre of Excellence in Youth Mental Health, University of Melbourne, 35 Poplar Road, Parkville VIC 3052, Australia jessica.hartmann@unimelb.edu.au.</nlm:affiliation>
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<name sortKey="Lachowski, Angela" sort="Lachowski, Angela" uniqKey="Lachowski A" first="Angela" last="Lachowski">Angela Lachowski</name>
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<name sortKey="Edinger, Jack D" sort="Edinger, Jack D" uniqKey="Edinger J" first="Jack D" last="Edinger">Jack D. Edinger</name>
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<term>Anxiety (psychology)</term>
<term>Bias (MeSH)</term>
<term>Depression (complications)</term>
<term>Depression (psychology)</term>
<term>Female (MeSH)</term>
<term>Humans (MeSH)</term>
<term>Male (MeSH)</term>
<term>Medical Records (MeSH)</term>
<term>Mental Disorders (complications)</term>
<term>Mental Disorders (psychology)</term>
<term>Middle Aged (MeSH)</term>
<term>Psychiatric Status Rating Scales (MeSH)</term>
<term>Regression Analysis (MeSH)</term>
<term>Sleep Initiation and Maintenance Disorders (complications)</term>
<term>Sleep Initiation and Maintenance Disorders (psychology)</term>
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<term>Adulte d'âge moyen (MeSH)</term>
<term>Analyse de régression (MeSH)</term>
<term>Anxiété (complications)</term>
<term>Anxiété (psychologie)</term>
<term>Biais (épidémiologie) (MeSH)</term>
<term>Dossiers médicaux (MeSH)</term>
<term>Dépression (complications)</term>
<term>Dépression (psychologie)</term>
<term>Femelle (MeSH)</term>
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<term>Troubles de l'endormissement et du maintien du sommeil (complications)</term>
<term>Troubles de l'endormissement et du maintien du sommeil (psychologie)</term>
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<front>
<div type="abstract" xml:lang="en">
<p>
<b>OBJECTIVE</b>
</p>
<p>The construct of subjective sleep quality is poorly understood. One widely used measure of subjective sleep quality is the Pittsburgh Sleep Quality Index (PSQI). The role of psychiatric illness in the association between the PSQI and a prospective, sleep diary-derived sleep quality measure (SDSQ) was investigated plus the degree to which the PSQI may reflect mood states.</p>
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<p>
<b>METHOD</b>
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<p>A sample of 211 insomnia patients (International Classification of Sleep Disorders, Second Edition) divided by the presence or absence of a comorbid psychiatric disorder (DSM-IV-TR) and recruited between January 2004 and February 2009, completed the PSQI (primary outcome) and 2 weeks of sleep diary monitoring. First, correlations between PSQI and SDSQ were compared; second, regression analyses were used to investigate whether the association between PSQI and SDSQ depends on diagnostic status; third, the differences in sleep quality between the groups, plus the contribution of anxiety and depression in explaining these differences, were explored.</p>
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<p>
<b>RESULTS</b>
</p>
<p>The correlation between PSQI and SDSQ was significant only in the nonpsychiatric group (P < .001). The association between PSQI and SDSQ was moderated by diagnostic status: it was weaker in psychiatric patients (P = .047). Patients with psychiatric comorbidity scored significantly higher on the PSQI than those without (P < .001); this difference disappeared after controlling for anxiety. There were no group differences for the SDSQ.</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>CONCLUSIONS</b>
</p>
<p>The present findings suggest that (1) psychiatric patients may be more biased in their retrospective sleep quality ratings, and (2) the PSQI total score may reflect sleep-related distress. The use of a prospective sleep diary measure in patients with a psychiatric disorder is recommended.</p>
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