Objective sleep duration and health in elderly Russians

Maria A. Shkolnikova, Blake Aber, Maxine Weinstein, Luobov´ Kravtsova, Svetlana A. Shalnova, Vladimir M. Shkolnikov and James W. Vaupel
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Maria A. Shkolnikova: Max Planck Institute for Demographic Research, Rostock, Germany
Maxine Weinstein: Max Planck Institute for Demographic Research, Rostock, Germany
Luobov´ Kravtsova: Max Planck Institute for Demographic Research, Rostock, Germany
Svetlana A. Shalnova: Max Planck Institute for Demographic Research, Rostock, Germany
Vladimir M. Shkolnikov: Max Planck Institute for Demographic Research, Rostock, Germany
James W. Vaupel: Max Planck Institute for Demographic Research, Rostock, Germany

No WP-2006-009, MPIDR Working Papers from Max Planck Institute for Demographic Research, Rostock, Germany

Abstract: Objectives - We examine the relationship between sleep duration and health in the high mortality context of Russia. Methods - Night and daytime sleep durations are based on self-reports and 24-hour heart rate trends (Holter monitoring). The sample of 201 individuals (Holter data for 185) is drawn from the Moscow Lipid Research Clinics cohort, followed up since 1975-77. Field-work occurred in 2002-03. Results - Although objective and reported mean sleep are similar, there are significant intra-individual differences. Significant associations are found between objective sleep and health: longer sleep corresponds to lower grip strength, poorer self-rated health and immediate recall, and higher mortality risk score. No significant relationships are found for subjective sleep. Conclusions - We provide the first evidence of an association between long sleep and worse health outcomes among elderly Russians. Predictive power increases if objective sleep measures are used, a consideration which is especially important in small studies.

JEL-codes: J1 Z0 (search for similar items in EconPapers)
Pages: 20 pages
Date: 2006
New Economics Papers: this item is included in nep-hea and nep-tra
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Persistent link: https://EconPapers.repec.org/RePEc:dem:wpaper:wp-2006-009

DOI: 10.4054/MPIDR-WP-2006-009

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