Salivary cortisol and sleep problems among civil servants
Research output: Contribution to journal › Journal article › peer-review
OBJECTIVE: The present study used information from a field study conducted among 4489 civil servants (70% women) in Denmark in 2007. The purpose was to examine the association between sleep problems and salivary cortisol by using a cross-sectional design with repeated measures in a subsample three-month later. METHODS: Sleep problems during the past night and the past 4 weeks were assessed by a self-administered questionnaire on overall sleep quality, disturbed sleep, sleep length and awakening problems. Saliva samples were collected in a single day, using cotton tubes, 30min after awakening and again at 2000h. A subsample of 387 participants collected saliva samples three-month later at awakening, +20min and +40min after awakening and at 2000h. We adjusted for confounders related to sampling time, life style and personal characteristics, socioeconomic status and work aspects. RESULTS: Sleep problems during the past four weeks were associated with low morning and evening saliva cortisol concentrations: [-3.1% per score of disturbed sleep (p=.009); and -4.7% per score of awakening problems (p
Original language | English |
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Journal | Psychoneuroendocrinology |
Volume | 37 |
Issue number | 7 |
Pages (from-to) | 1086-1095 |
Number of pages | 10 |
ISSN | 0306-4530 |
DOIs | |
Publication status | Published - Jul 2012 |
ID: 37472094