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Psychosocial Job Strain and Sleep Quality Interaction Leading to Insufficient Recovery

Lillehammer University College (HiL), ASV, Postboks 952, 2609 Lillehammer, Norway
Lloyd's Register Consulting, University College London (UCL), 71 Fenchurch Street, London EC3M 4BS, UK
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2013, 10(11), 5863-5873;
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)
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. View Full-Text
Keywords: cortisol; job strain; sleep quality cortisol; job strain; sleep quality
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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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