A follow-up study was carried out of suicidal behavior among 127 chronic schizophrenic patients. We were able to obtain follow-up information for 100 of the 127 patients (78.7%). Over the mean follow-up time of 4½ years, 6 of these 100 patients (6%) had committed suicide and 16 other patients (16%) had attempted suicide. Chronic schizophrenic patients who attempted suicide during the follow-up period, compared with those who did not, had had significantly more psychiatric admissions. Using the data obtained at the time of the index admission we were unable to accurately predict the 6 schizophrenic patients who were known to have subsequently committed suicide.
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