title: Prevalence of insomnia-related symptoms continues to increase in the Finnish working-age population.
abstract: In 2008, we published epidemiological data from 1972 to 2005 that suggested an increase in insomnia-related symptoms among the working-age population. The results were based on the National FINRISK (FR) Study samples of the Finnish adult population aged 25-64, and on the Finnish Quality of Work Life Surveys (FQWLS), carried out among Finnish salary earners. Both of these ongoing studies have since provided two new estimates of insomnia-related symptoms. Chronic insomnia-related symptoms were 9.0% (95% CI 8.3-9.7), 9.6% (95% CI 8.8-10.4) in FR 2007 and 2012, respectively; and 9.1% (95% CI 8.3-10.0), 9.2% (95% CI 8.4-10.1) in FQWLS 2008 and 2013, respectively. Occasional insomnia-related symptoms were 45.3% (95% CI 44.1-46.6), 42.5% (95% CI 41.1-43.9) in FR 2007 and 2012, respectively; and 40.3% (95% CI 38.8-41.7), 44.8% (95% CI 41.1-43.9) in FQWLS 2008 and 2013, respectively. The new estimates further strengthen the interpretation of the ongoing increase in occasional insomnia-related symptoms among the Finnish general adult population. The increase in occasional symptoms was most prominent among employees. However, chronic insomnia symptoms showed no further increase.
authors: Department of Health, National Institute for Health and Welfare, Turku, Finland.
authors: Erkki
authors: E
authors: Kronholm
authors: Department of Health, National Institute for Health and Welfare, Turku, Finland.
authors: Timo
authors: T
authors: Partonen
authors: Brain and Work Research Center, Finnish Institute of Occupational Health, Helsinki, Finland.
authors: Mikko
authors: M
authors: Härmä
authors: Brain and Work Research Center, Finnish Institute of Occupational Health, Helsinki, Finland.
authors: Christer
authors: C
authors: Hublin
authors: Finnish Institute of Occupational Health, Helsinki, Finland.
authors: Tea
authors: T
authors: Lallukka
authors: Department of Health, National Institute for Health and Welfare, Turku, Finland.
authors: Markku
authors: M
authors: Peltonen
authors: Department of Health, National Institute for Health and Welfare, Turku, Finland.|Faculty of Health Sciences, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.|Hospital District of North Karelia, North Karelia, Finland.
authors: Tiina
authors: T
authors: Laatikainen
mesh_terms: D000328:Adult; D002908:Chronic Disease; D004651:Employment / Q000523:psychology* / Q000706:statistics & numerical data*; D005260:Female; D005387:Finland / Q000453:epidemiology; D006306:Health Surveys; D006801:Humans; D007588:Job Satisfaction; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011788:Quality of Life; D007319:Sleep Initiation and Maintenance Disorders / Q000453:epidemiology* / Q000523:psychology
keywords: epidemiology; insomnia; long-term trend