Psychotic features in major depression. Is mood congruence important?
We studied outcome and family history in 203 patients with psychotic depression. Patients whose psychotic features were mood-incongruent were significantly younger and had a slightly poorer outcome. Morbid risks for affective disorder and schizophrenia among relatives distinguished these mood-incongruent patients from patients with non-psychotic depression but not from patients with schizophrenia. In contrast, depressive probands with mood-congruent psychotic features resembled probands with non-psychotic depression and differed significantly from schizophrenia probands in terms of family history. While depressed patients with mood-congruent psychotic features experienced poorer short-term outcome relative to non-psychotic depressed patients, a 40-year follow-up has shown that these differences disappear over time. Moreover, these two groups are quite similar according to family history data. Both family history and short-term outcome data suggest that major depression with mood-incongruent psychotic features cannot be classified altogether with either affective disorders or schizophrenia. More definite conclusions must await the results of long-term outcome and family studies of these patients presently underway.
D000293:Adolescent; D000328:Adult; D001714:Bipolar Disorder / Q000235:genetics / Q000523:psychology*; D003866:Depressive Disorder / Q000235:genetics / Q000523:psychology*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012306:Risk; D012559:Schizophrenia / Q000235:genetics; D012565:Schizophrenic Psychology