Schizophreniform disorder: a 1-year follow-up study.

The study reports the preliminary data from a small 12-patient sample assessed at the time of their first psychotic episode and diagnosed as having a schizophreniform disorder. After a 1-year follow-up period all the patients were newly evaluated on clinical and global functioning variables, using clinical diagnosis as an outcome measure. A diagnostic stability in the schizophrenic spectrum was found.