Journal
JOURNAL OF PSYCHOSOMATIC RESEARCH
Volume 56, Issue 5, Pages 479-486Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.psychores.2004.04.365
Keywords
sleep; sociocultural characteristics; elders; normal sleep
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Objective: To present sleep patterns in elderly individuals and factors associated with short sleep and long daytime and nighttime sleep. Methods: A total of 8091 subjects aged between 55 and 10 1 years representative of the noninstitutionalized general population of seven European countries (France, Finland, Italy, Germany, Portugal, Spain, and UK) were interviewed by telephone about their sleep habits and sleep disorders. Results: The average sleep duration was 6 h and 57 min. Sleep duration was longer in men than in women. Five percent of the sample slept 5 h or less and 5% slept 9 h or more per night. Factors associated with short sleep (lower fifth percentile) were age, living in UK, no physical exercise, drinking six cups of coffee or more per day, taking a medication for sleep, difficulty initiating sleep, disrupted sleep, early morning awakening, and presence of an anxiety disorder. Factors associated with long sleep (greater than or equal to95th percentile) were age, living in France, Portugal, or Spain, being underweight, no physical exercise, disrupted sleep, taking a medication for sleep, and presence of an anxiety disorder. Long daytime sleep (54 min or more) were age, being a man, being overweight or obese, physical disease, being dissatisfied with one's social life, smoking, drinking alcohol, and having a major depressive disorder. Conclusion: Sleep patterns considerably varied among the countries in the elderly population. Extreme values of sleep duration (short and long sleep) were associated with several sleep and mental health problems. (C) 2004 Elsevier Inc. All rights reserved.
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