One-year prevalence of long-term functional psychosis in three different areas of Uppsala.

The 1-year prevalence of long term functional psychoses (LFP) in Uppsala was found to be 0.73%, with a clear gradient from the central city area (0.87%) to the rural area (0.60%). The highest prevalence was found in the 35-54 years age group (1.01%), and the lowest prevalence in the 18-34 years age group (0.45%). There were no pronounced sex differences. The majority of the LFP patients were diagnosed as having schizophrenia. The 1-year prevalence of schizophrenia was 0.42%, with a clear gradient from the central city area to the rural area (0.53%, 0.44% and 0.30%, respectively). The same gradient was not observed with regard to the other diagnostic subgroups relating to LFP.