A randomized clinical trial of inpatient family intervention, III: Effects at 6-month and 18-month follow-ups

This paper focuses on the follow-up results of a randomized clinical trial of inpatient family intervention (IFI) that emphasized psychoeducation. Results for the sample of 169 psychiatric patients suggested that adding family treatment to standard hospital treatment was effective; however, the statistical interactions indicated that this therapeutic effect was restricted to female patients with schizophrenia or major affective disorder. The effect of family treatment on male patients with these diagnoses was minimal or slightly negative. In a group of patients with other diagnoses, the Treatment by Sex effect was reversed: male patients did better with the family treatment.