The Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety

Azmeh Shahid,1–5 Sharon A Chung,1,2,5 Lance Maresky,1 Affan Danish,1 Arina Bingeliene,1,4,5 Jianhua Shen,1 Colin M Shapiro1–5 1Sleep Research Laboratory, Department of Psychiatry, University Health Network, University of Toronto, 2Youthdale Treatment Centres, 3Youthdale...

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Autores principales:	Shahid A, Chung SA, Maresky L, Danish A, Bingeliene A, Shen J, Shapiro CM
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2016
Materias:	Alertness Sleepiness Fatigue Depression Anxiety Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
Acceso en línea:	https://doaj.org/article/cf263bcbc5c440eca7518e5a3f881762
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spelling	oai:doaj.org-article:cf263bcbc5c440eca7518e5a3f8817622021-12-02T08:06:26ZThe Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety1179-1608https://doaj.org/article/cf263bcbc5c440eca7518e5a3f8817622016-01-01T00:00:00Zhttps://www.dovepress.com/the-toronto-hospital-alertness-test-scale-relationship-to-daytime-slee-peer-reviewed-article-NSShttps://doaj.org/toc/1179-1608Azmeh Shahid,1–5 Sharon A Chung,1,2,5 Lance Maresky,1 Affan Danish,1 Arina Bingeliene,1,4,5 Jianhua Shen,1 Colin M Shapiro1–5 1Sleep Research Laboratory, Department of Psychiatry, University Health Network, University of Toronto, 2Youthdale Treatment Centres, 3Youthdale Child and Adolescent Sleep Centre, 4Department of Psychiatry, University of Toronto, 5Department of Psychiatry, Toronto Western Hospital, University Health Network, Toronto, ON, Canada Objective: The Toronto Hospital Alertness Test (THAT) scale was designed to measure alertness, defined as the capacity of the mind to respond appropriately to external and internal stimuli. The present study’s aim is to determine normative values of alertness on the THAT and to explore the relationship among excessive daytime sleepiness, fatigue, depressive symptoms, and alertness. Methods: Normative data were collected from 60 healthy males and females. To explore the relationship among alertness, daytime sleepiness, fatigue, depression, and anxiety, data were collected from charts of sleep clinic patients. All study subjects completed measures for fatigue, sleepiness, depressive symptoms, and anxiety. Results: The average score on the THAT was 34.9±7.2 (range 22–50) for the control group. The cutoff score for the THAT, indicative of clinically significant reduced alertness, was determined to be ≤20.5 (mean –2 SD). THAT alertness scores were found to be modestly, significantly, and negatively correlated with fatigue levels (r=–0.39, P<0.001), depressive symptoms (r=–0.53, P<0.001), and anxiety symptoms (r=–0.41, P<0.001). No correlations were found between alertness levels and daytime sleepiness. Regression analyses revealed a significant model (F=19.9, P<0.001, adjusted R2=0.35) with depressive symptoms (P<0.001) and fatigue (P=0.006) emerging as the only significant predictors of scores on the THAT. Conclusion: The findings of this study support that sleepiness is not the same as poor alertness. Depressive symptoms and fatigue, but not sleepiness, were found to have a strong and significant impact on levels of alertness. This is the first study to link poor alertness to depressive symptoms. Keywords: alertness, sleepiness, fatigue, depression, anxietyShahid AChung SAMaresky LDanish ABingeliene AShen JShapiro CMDove Medical PressarticleAlertnessSleepinessFatigueDepressionAnxietyPsychiatryRC435-571Neurophysiology and neuropsychologyQP351-495ENNature and Science of Sleep, Vol 2016, Iss Issue 1, Pp 41-45 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Alertness Sleepiness Fatigue Depression Anxiety Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
spellingShingle	Alertness Sleepiness Fatigue Depression Anxiety Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495 Shahid A Chung SA Maresky L Danish A Bingeliene A Shen J Shapiro CM The Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety
description	Azmeh Shahid,1–5 Sharon A Chung,1,2,5 Lance Maresky,1 Affan Danish,1 Arina Bingeliene,1,4,5 Jianhua Shen,1 Colin M Shapiro1–5 1Sleep Research Laboratory, Department of Psychiatry, University Health Network, University of Toronto, 2Youthdale Treatment Centres, 3Youthdale Child and Adolescent Sleep Centre, 4Department of Psychiatry, University of Toronto, 5Department of Psychiatry, Toronto Western Hospital, University Health Network, Toronto, ON, Canada Objective: The Toronto Hospital Alertness Test (THAT) scale was designed to measure alertness, defined as the capacity of the mind to respond appropriately to external and internal stimuli. The present study’s aim is to determine normative values of alertness on the THAT and to explore the relationship among excessive daytime sleepiness, fatigue, depressive symptoms, and alertness. Methods: Normative data were collected from 60 healthy males and females. To explore the relationship among alertness, daytime sleepiness, fatigue, depression, and anxiety, data were collected from charts of sleep clinic patients. All study subjects completed measures for fatigue, sleepiness, depressive symptoms, and anxiety. Results: The average score on the THAT was 34.9±7.2 (range 22–50) for the control group. The cutoff score for the THAT, indicative of clinically significant reduced alertness, was determined to be ≤20.5 (mean –2 SD). THAT alertness scores were found to be modestly, significantly, and negatively correlated with fatigue levels (r=–0.39, P<0.001), depressive symptoms (r=–0.53, P<0.001), and anxiety symptoms (r=–0.41, P<0.001). No correlations were found between alertness levels and daytime sleepiness. Regression analyses revealed a significant model (F=19.9, P<0.001, adjusted R2=0.35) with depressive symptoms (P<0.001) and fatigue (P=0.006) emerging as the only significant predictors of scores on the THAT. Conclusion: The findings of this study support that sleepiness is not the same as poor alertness. Depressive symptoms and fatigue, but not sleepiness, were found to have a strong and significant impact on levels of alertness. This is the first study to link poor alertness to depressive symptoms. Keywords: alertness, sleepiness, fatigue, depression, anxiety
format	article
author	Shahid A Chung SA Maresky L Danish A Bingeliene A Shen J Shapiro CM
author_facet	Shahid A Chung SA Maresky L Danish A Bingeliene A Shen J Shapiro CM
author_sort	Shahid A
title	The Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety
title_short	The Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety
title_full	The Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety
title_fullStr	The Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety
title_full_unstemmed	The Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety
title_sort	toronto hospital alertness test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety
publisher	Dove Medical Press
publishDate	2016
url	https://doaj.org/article/cf263bcbc5c440eca7518e5a3f881762
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The Toronto Hospital Alertness Test scale: relationship to daytime sleepiness, fatigue, and symptoms of depression and anxiety

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