Relationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population

Prosanta Mondal,1 John A Gjevre,2 Regina M Taylor-Gjevre,3 Hyun J Lim11Department of Community Health and Epidemiology, 2Division of Respiratory, Critical Care and Sleep Medicine, 3Department of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, CanadaBackground: Sleep health questionnai...

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Autores principales:	Mondal P, Gjevre J, Taylor-Gjevre RM, Lim HJ
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2013
Materias:	Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
Acceso en línea:	https://doaj.org/article/f81d998d1d46484cabea6bfaf1709f1a
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spelling	oai:doaj.org-article:f81d998d1d46484cabea6bfaf1709f1a2021-12-02T04:29:45ZRelationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population1179-1608https://doaj.org/article/f81d998d1d46484cabea6bfaf1709f1a2013-02-01T00:00:00Zhttp://www.dovepress.com/relationship-between-the-pittsburgh-sleep-quality-index-and-the-epwort-a12154https://doaj.org/toc/1179-1608Prosanta Mondal,1 John A Gjevre,2 Regina M Taylor-Gjevre,3 Hyun J Lim11Department of Community Health and Epidemiology, 2Division of Respiratory, Critical Care and Sleep Medicine, 3Department of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, CanadaBackground: Sleep health questionnaires are often employed as a first assessment step for sleep pathology. The Epworth Sleepiness Scale (ESS) and the Pittsburgh Sleep Quality Index (PSQI) are two commonly employed questionnaire instruments. Aspects of sleep health may be measured differently depending on choice of instrument.Objectives: In a patient population at high risk for sleep disorders, referred for polysomnography (PSG), we evaluated the level of association between results from these two instruments. Questionnaire results were also compared with measured PSG parameters.Methods: Records of patients undergoing overnight PSG in the sleep laboratory between February&ndash;June 2011 were retrospectively reviewed for eligibility. Inclusion criteria were met by 236 patients. PSQI and ESS scores, demographic information, and PSG data were extracted from each record for analysis. Four subgroups based on normal/abnormal values for ESS and PSQI were evaluated for between-group differences.Results: Of 236 adult participants, 72.5% were male, the mean age was 52.9 years (13.9), mean body mass index (BMI) 34.4 kg/m2 (8.3), mean ESS 9.0 (4.8; range: 0&ndash;22), PSQI mean 8.6 (4.2; range: 2&ndash;19). The Pearson correlation coefficient was r = 0.13 (P = 0.05) for association between ESS and PSQI. Participants with an abnormal ESS were more likely to have an abnormal PSQI score (odds ratio 1.9 [1.1&ndash;3.6]; P = 0.03). Those with an abnormal ESS had higher BMI (P = 0.008) and higher apnea&ndash;hypopnea indexes (AHI) (P = 0.05). Differences between the four subgroups were observed for BMI and sex proportions, but not for AHI.Conclusions: We observed limited association between these two commonly used questionnaire instruments, the ESS and the PSQI. These two questionnaires appear to evaluate different aspects of sleep. In terms of clinical application, for global assessment of patients with sleep problems, care should be taken to include instruments measuring different facets of sleep health.Keywords: Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale, polysomnography, sleep disordersMondal PGjevre JTaylor-Gjevre RMLim HJDove Medical PressarticlePsychiatryRC435-571Neurophysiology and neuropsychologyQP351-495ENNature and Science of Sleep, Vol 2013, Iss default, Pp 15-21 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
spellingShingle	Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495 Mondal P Gjevre J Taylor-Gjevre RM Lim HJ Relationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population
description	Prosanta Mondal,1 John A Gjevre,2 Regina M Taylor-Gjevre,3 Hyun J Lim11Department of Community Health and Epidemiology, 2Division of Respiratory, Critical Care and Sleep Medicine, 3Department of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, CanadaBackground: Sleep health questionnaires are often employed as a first assessment step for sleep pathology. The Epworth Sleepiness Scale (ESS) and the Pittsburgh Sleep Quality Index (PSQI) are two commonly employed questionnaire instruments. Aspects of sleep health may be measured differently depending on choice of instrument.Objectives: In a patient population at high risk for sleep disorders, referred for polysomnography (PSG), we evaluated the level of association between results from these two instruments. Questionnaire results were also compared with measured PSG parameters.Methods: Records of patients undergoing overnight PSG in the sleep laboratory between February&ndash;June 2011 were retrospectively reviewed for eligibility. Inclusion criteria were met by 236 patients. PSQI and ESS scores, demographic information, and PSG data were extracted from each record for analysis. Four subgroups based on normal/abnormal values for ESS and PSQI were evaluated for between-group differences.Results: Of 236 adult participants, 72.5% were male, the mean age was 52.9 years (13.9), mean body mass index (BMI) 34.4 kg/m2 (8.3), mean ESS 9.0 (4.8; range: 0&ndash;22), PSQI mean 8.6 (4.2; range: 2&ndash;19). The Pearson correlation coefficient was r = 0.13 (P = 0.05) for association between ESS and PSQI. Participants with an abnormal ESS were more likely to have an abnormal PSQI score (odds ratio 1.9 [1.1&ndash;3.6]; P = 0.03). Those with an abnormal ESS had higher BMI (P = 0.008) and higher apnea&ndash;hypopnea indexes (AHI) (P = 0.05). Differences between the four subgroups were observed for BMI and sex proportions, but not for AHI.Conclusions: We observed limited association between these two commonly used questionnaire instruments, the ESS and the PSQI. These two questionnaires appear to evaluate different aspects of sleep. In terms of clinical application, for global assessment of patients with sleep problems, care should be taken to include instruments measuring different facets of sleep health.Keywords: Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale, polysomnography, sleep disorders
format	article
author	Mondal P Gjevre J Taylor-Gjevre RM Lim HJ
author_facet	Mondal P Gjevre J Taylor-Gjevre RM Lim HJ
author_sort	Mondal P
title	Relationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population
title_short	Relationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population
title_full	Relationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population
title_fullStr	Relationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population
title_full_unstemmed	Relationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population
title_sort	relationship between the pittsburgh sleep quality index and the epworth sleepiness scale in a sleep laboratory referral population
publisher	Dove Medical Press
publishDate	2013
url	https://doaj.org/article/f81d998d1d46484cabea6bfaf1709f1a
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Relationship between the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale in a sleep laboratory referral population

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