Mediators of functioning and quality of life among people living with schizophrenia participating in the culturally adapted family psychoeducation (KUPAA) trial in Tanzania.

Abstract

Purpose: KUPAA is a culturally adapted version of Family Psychoeducation (FPE) that has shown to be beneficial to people living with schizophrenia-spectrum disorders (PLWS), who may experience limitations across multiple functional domains. Family Psychoeducation can lead to improvement in functional outcomes that align with recovery goals; however, the mechanisms of action are unclear. The current study objective is to identify mechanisms by which the KUPAA intervention reduces disability and improves quality of life among care-seeking PLWS in Tanzania.

Methods: This clinical trial was conducted at Muhimbili National Hospital and Mbeya Zonal Referral Hospital and included a total of 66 dyads composed of PLWS ages 18-50 years and their caregivers. A causal mediation framework employing the g-formula was used to estimate the indirect effects of the KUPAA intervention on disability and quality of life, through the mediated pathways of hopefulness, self-stigma and generalized self-efficacy.

Result: A greater decrease in mean disability score and increase in quality of life score was observed among KUPAA participants, compared to controls. We found that generalized self-efficacy mediates 33% of the effect of KUPAA on quality of life and generalized self-efficacy and hope each mediate 36% of the effect of KUPAA on disability.

Conclusion: Results provide preliminary support for the hypothesis that KUPAA can reduce disability and improve quality life by reducing stigma, increasing hope and strengthening self-efficacy. Future psychosocial programs for PLWS should consider tailoring their interventions to focus on reducing stigma, increasing hope and fostering self-efficacy.