A cross-sectional survey of the nature and correlates of sleep disturbance in people with psoriasis

Henry, AL, Kyle, SD, Chisholm, A, Griffiths, CEM and Bundy, C (2017) A cross-sectional survey of the nature and correlates of sleep disturbance in people with psoriasis. BRITISH JOURNAL OF DERMATOLOGY, 177 (4). pp. 1052-1059.

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Abstract

<h4>Background</h4>Research suggests that sleep disturbance is common in psoriasis. While several sleep investigations have been conducted in psoriasis populations, many have methodological shortcomings, and no study has examined multiple dimensions of sleep-wake functioning. Moreover, research has yet to be performed comprehensively examining the range of physical and psychological factors that may affect sleep in people with psoriasis.<h4>Objectives</h4>To characterize sleep disturbance using validated measures and to identify physical and psychological predictors of sleep quality in people with psoriasis.<h4>Methods</h4>An online survey was conducted (186 respondents; mean age 39·2 years) comprising validated measures assessing sleep [Pittsburgh Sleep; Quality Index (PSQI), Berlin Questionnaire, Pre-Sleep Arousal Scale]; chronotype (Morningness-Eveningness Questionnaire); mood (Hospital Anxiety and Depression Scale); itch (5-D Itch Scale); and psoriasis severity (Simplified Psoriasis Index). Group comparisons and regression analyses were used to examine predictors of poor sleep.<h4>Results</h4>The mean PSQI score was 9·2 ± 4·3, with 76·3% scoring above the threshold for poor sleep (≥ 6 on the PSQI) and 32·5% scoring 'positive' for probable obstructive sleep apnoea (OSA). Poor sleep and high likelihood of OSA were associated with more severe psoriasis (P < 0·05; η = 0·07; η² = 0·005). Cognitive arousal (β = 0·26, P = 0·001), itch (β = 0·26, P < 0·001) and depression (β = 0·24, P = 0·001) were the most robust predictors of poor sleep quality, which, together with somatic arousal (β = 0·17, P = 0·022), accounted for 43% of variance in PSQI scores.<h4>Conclusions</h4>Poor sleep is common in psoriasis and associated with psychological and physical factors. Rates of probable OSA are also high. Given the importance of restorative sleep for health, sleep complaints should receive greater clinical attention in the management of psoriasis.

Item Type:	Article
Uncontrolled Keywords:	Humans, Pruritus, Psoriasis, Cross-Sectional Studies, Depression, Cognition, Arousal, Adolescent, Adult, Aged, Middle Aged, Female, Male, Young Adult, Sleep Wake Disorders
Depositing User:	Symplectic Admin
Date Deposited:	27 Mar 2017 15:14
Last Modified:	19 Jan 2023 07:08
DOI:	10.1111/bjd.15469
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3006659

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• A cross-sectional survey of the nature and correlates of sleep disturbance in people with psoriasis. (deposited 17 Mar 2017 11:25)
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