Lundby revisited: first incidence of mental disorders 1947-1997.
Objective: To investigate how first incidence of various mental disorders changed between the periods of 1947-1972 to 1972-1997 in the Lundby cohort. Method: First-incidence rates of mental disorders were calculated for two 25 year periods and ten 5 year periods. Results: From 1947-1972 to 1972-1997 a decrease in almost all age- and sex-specific incidences of neurotic and organic brain disorders w