Association of impulsivity with sleep duration and insomnia in an employee population

N. Grano, L. Keltikangas-Jarvinen, Anne Kouvonen, S. Puttonen, M. Virtanen, J. Vahtera, M. Elovainio, M. Kivimaki

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)


    Clinical studies have linked impulsivity and insomnia in patients, but little is known about this association in non-clinical settings. This study examined whether impulsive temperament is associated with sleep duration and insomnia complaints in a large cohort of hospital employees (535 men and 4014 women). Linear regression models were related to prospective data from two surveys conducted in 1998 and 2000. Adjustments were made for age, marital status, education, shift work, smoking, alcohol consumption, body mass index, physical activity, minor psychiatric morbidity, social support, somatic disease, depression and other psychiatric disease in 1998. In men, higher impulsivity predicted shorter sleep duration and waking up several times per night independent of baseline characteristics. In women, higher impulsivity predicted having difficulty falling asleep and waking up feeling tired after the usual amount of sleep after adjustment for most of covariates. However, these associations turned out to be non-significant after adjustment for somatic and psychiatric disease. These results support the hypothesis that impulsive temperament could be a risk factor for insomnia in men. (c) 2007 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)307-318
    Number of pages12
    JournalPersonality and Individual Differences
    Issue number2
    Publication statusPublished - Jul 2007

    ASJC Scopus subject areas

    • Pathology and Forensic Medicine
    • Psychology(all)
    • Social Psychology

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