To assess clinical predictors of 1-year outcome in schizophrenia, 63 patients were studied prospectively. Persistent negative and total symptoms after 4 weeks of neuroleptic treatment accounted for 62% of the variance of 1-year outcome, whereas baseline measures showed no relationship to outcome. Thus, 1-year outcome in schizophrenia can be reasonably predicted on the basis of symptoms persisting after 4 weeks of treatment.
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