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Sleep disturbances are correlated with decreased morning awakening salivary cortisol.
Psychoneuroendocrinology. 2004 Oct; 29(9):1184-91.P

Abstract

Morning and evening salivary cortisol levels were correlated with sleep parameters in 14 patients with primary insomnia and 15 healthy controls. Salivary cortisol was sampled immediately after awakening (T1), 15 min later (T2), and immediately before going to bed (T3) for 1 week at home. In parallel with this, subjects estimated parameters of sleep in a daily sleep log. Patients and controls were all non-smokers who did not differ regarding morning awakening time or bedtime. Cortisol after awakening was significantly decreased in primary insomnia. Salivary cortisol at the time of awakening correlated negatively with the subjective estimation of sleep quality, i.e. a low salivary cortisol level directly after awakening correlated with a higher frequency of nightly awakenings (r = -0.50), a diminished sleep quality (r = -0.34) and a decreased feeling of recovery after awakening (r = -0.35; all p < 0.05). Furthermore, awakening cortisol was negatively correlated with the Pittsburgh Sleep Quality Index (r = -0.43) and with a questionnaire on sleep-related cognitions with the subscales rumination in bed (r = -0.56) and focusing on sleep-related thoughts (r = -0.46; all p < 0.05).

Authors+Show Affiliations

Department of Psychiatry and Psychotherapy, University of Luebeck, Ratzeburger Allee 160, D-23538 Luebeck, Germany. backhaus.j@gmx.deNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Controlled Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15219642

Citation

Backhaus, Jutta, et al. "Sleep Disturbances Are Correlated With Decreased Morning Awakening Salivary Cortisol." Psychoneuroendocrinology, vol. 29, no. 9, 2004, pp. 1184-91.
Backhaus J, Junghanns K, Hohagen F. Sleep disturbances are correlated with decreased morning awakening salivary cortisol. Psychoneuroendocrinology. 2004;29(9):1184-91.
Backhaus, J., Junghanns, K., & Hohagen, F. (2004). Sleep disturbances are correlated with decreased morning awakening salivary cortisol. Psychoneuroendocrinology, 29(9), 1184-91.
Backhaus J, Junghanns K, Hohagen F. Sleep Disturbances Are Correlated With Decreased Morning Awakening Salivary Cortisol. Psychoneuroendocrinology. 2004;29(9):1184-91. PubMed PMID: 15219642.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sleep disturbances are correlated with decreased morning awakening salivary cortisol. AU - Backhaus,Jutta, AU - Junghanns,Klaus, AU - Hohagen,Fritz, PY - 2003/03/21/received PY - 2004/01/23/revised PY - 2004/01/27/accepted PY - 2004/6/29/pubmed PY - 2004/10/27/medline PY - 2004/6/29/entrez SP - 1184 EP - 91 JF - Psychoneuroendocrinology JO - Psychoneuroendocrinology VL - 29 IS - 9 N2 - Morning and evening salivary cortisol levels were correlated with sleep parameters in 14 patients with primary insomnia and 15 healthy controls. Salivary cortisol was sampled immediately after awakening (T1), 15 min later (T2), and immediately before going to bed (T3) for 1 week at home. In parallel with this, subjects estimated parameters of sleep in a daily sleep log. Patients and controls were all non-smokers who did not differ regarding morning awakening time or bedtime. Cortisol after awakening was significantly decreased in primary insomnia. Salivary cortisol at the time of awakening correlated negatively with the subjective estimation of sleep quality, i.e. a low salivary cortisol level directly after awakening correlated with a higher frequency of nightly awakenings (r = -0.50), a diminished sleep quality (r = -0.34) and a decreased feeling of recovery after awakening (r = -0.35; all p < 0.05). Furthermore, awakening cortisol was negatively correlated with the Pittsburgh Sleep Quality Index (r = -0.43) and with a questionnaire on sleep-related cognitions with the subscales rumination in bed (r = -0.56) and focusing on sleep-related thoughts (r = -0.46; all p < 0.05). SN - 0306-4530 UR - https://www.unboundmedicine.com/medline/citation/15219642/Sleep_disturbances_are_correlated_with_decreased_morning_awakening_salivary_cortisol_ DB - PRIME DP - Unbound Medicine ER -