Summary
Results from the Finnish UKKI study on longitudinal changes in prevalences of different mental disorder categories in a population cohort (n=723) are presented. The subjects were investigated three times: in the original survey during 1969–71, and in two follow-ups (5 and 16 years after the original survey). The prevalence of all mental disorders was about 30% in all phases of the study, although the prevalence of psychoses increased from 1.1% to 3.5%. A special focus of interest was the changes in different 10-year birth cohorts during the 16 years. The results indicated that the youngest birth cohort (born in 1945–54) did not reach the same prevalence level of all mental disorders combined as the birth cohort 10 years older upon reaching the same age.
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Lehtinen, V., Lindholm, T., Veijola, J. et al. Stability of prevalences of mental disorders in a normal population cohort followed for 16 years. Soc Psychiatry Psychiatr Epidemiol 26, 40–46 (1991). https://doi.org/10.1007/BF00783580
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DOI: https://doi.org/10.1007/BF00783580