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Title: Exploring the associations between shift work disorder, depression, anxiety and sick leave taken amongst nurses.
Austin Authors: Booker, Lauren A ;Sletten, Tracey L;Alvaro, Pasquale K;Barnes, Maree ;Collins, Allison;Chai-Coetzer, Ching Li;Naqvi, Aqsa;McMahon, Marcus;Lockley, Steven W;Rajaratnam, Shantha M W;Howard, Mark E 
Affiliation: School of Psychology, Flinders University, Adelaide, South Australia, Australia
University of Melbourne, Parkville, Victoria, Australia
Adelaide Institute for Sleep Health: A Flinders Centre of Research Excellence, Flinders University, Adelaide, South Australia, Australia
Respiratory and Sleep Services, Southern Adelaide Local Health Network, SA Health, Adelaide, South Australia, Australia
School of Psychological Sciences and Monash Institute of Cognitive and Clinical Neurosciences, Monash University, Melbourne, Victoria, Australia
Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, Australia
Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts
Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts
Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
Issue Date: Jun-2020
Date: 2019-05-29
Publication information: Journal of sleep research 2020; 29(3): e12872
Abstract: This study aimed to evaluate the association between shift work disorder and mental health in hospital-based nurses. Staff completed an online survey comprising demographic questions, the Shift Work Disorder Questionnaire, Patient Health-9 and the General Anxiety Disorder-7 scale. Sick leave data were collected from archival records from the Human Resources Department. Two hundred and two nurses (95% female; age M = 35.28 years ± SD = 12) participated (42% of eligible staff). Those at high risk of shift work disorder had higher depression (M = 7.54 ± SD = 4.28 vs. M = 3.78 ± SD = 3.24; p < 0.001) and anxiety (M = 5.66 ± SD = 3.82 vs. M = 2.83 ± SD = 3.33, p < 0.001) compared to those at low risk. Linear regression models showed that being at high risk of shift work disorder was the most significant predictor of depression, explaining 18.8% of the variance in depression (R2  = 0.188, adjusted R2  = 0.184, F(1, 200) = 46.20, p < 0.001). Shift work disorder combined with the number of night shifts and alcoholic drinks on non-work days accounted for 49.7% of the variance in anxiety scores (R2  = 0.497, adjusted R2  = 0.453, F(3, 35) = 11.51, p < 0.001). Mean sick leave in those with high risk of shift work disorder was 136.17 hr (SD = 113.11) versus 103.98 hr (SD = 94.46) in others (p = 0.057). Depression and years of shift work accounted for 18.9% of the variance in sick leave taken (R2  = 0.189, adjusted R2  = 0.180, F(2, 175) = 20.36, p < 0.001). Shift work disorder is strongly associated with depression and anxiety, providing a potential target to improve mental health in shift workers. Depression, in turn, is a significant contributing factor to sick leave.
DOI: 10.1111/jsr.12872
ORCID: 0000-0002-0533-3715
Journal: Journal of sleep research
PubMed URL: 31144389
Type: Journal Article
Subjects: anxiety
shift work
sick leave
Appears in Collections:Journal articles

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