Long-term (30-to 40-year) follow-up data for 76 manic patients, 182
depressives. 170 schizophrenics, and 109 controls showed that 10 per cent
of the schizophrenics, 8.5 percent of the manics, and 10.6 percent of the
depressives who were decreased had died by suicide. None of the controls
had committed suicide. The authors suggest that suicide is a significant
outcome factor in all three of these illnesses and is likely to occur at an
earlier age in schizophrenia than in the other illnesses.