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Int. J. Environ. Res. Public Health 2013, 10(11), 5863-5873; doi:10.3390/ijerph10115863

Psychosocial Job Strain and Sleep Quality Interaction Leading to Insufficient Recovery

1,*  and 2
1 Lillehammer University College (HiL), ASV, Postboks 952, 2609 Lillehammer, Norway 2 Lloyd's Register Consulting, University College London (UCL), 71 Fenchurch Street, London EC3M 4BS, UK
* Author to whom correspondence should be addressed.
Received: 13 August 2013 / Revised: 29 October 2013 / Accepted: 30 October 2013 / Published: 5 November 2013
(This article belongs to the Special Issue Job Stress and Health)
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The purpose of the study was to assess the impact of job strain and sleep quality on the diurnal pattern of cortisol reactivity, measured by awakening and evening (10 PM) saliva cortisol. The sample consisted of 76 British white-collar workers (24 women, 52 men; mean age 45.8 years). Sleep quality and job strain were assessed in a survey distributed just before the cortisol sampling. Both input variables were dichotomized about the median and factorial ANOVA was used for the statistical analysis. Low sleep quality was significantly associated with lower morning cortisol secretion. While job strain had no main effects on the cortisol reactivity there was a significant interaction effect between the input variables on morning cortisol secretion. These findings tentatively support the hypothesis that lack of sleep for workers with high job strain may result in a flattened diurnal cortisol reactivity.
Keywords: cortisol; job strain; sleep quality cortisol; job strain; sleep quality
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Rydstedt, L.W.; Devereux, J.J. Psychosocial Job Strain and Sleep Quality Interaction Leading to Insufficient Recovery. Int. J. Environ. Res. Public Health 2013, 10, 5863-5873.

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Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert