Evaluation of treatment adherence in outpatients with schizophrenia

Treatment nonadherence is a major obstacle in the successful management of schizophrenia. Finding out factors associated with nonadherence and the reasons for nonadherence are important to improve treatment adherence in patients with schizophrenia. This study was conceived to evaluate treatment adherence in patients with schizophrenia and the factors associated with it.

A cross-sectional study was conducted in 50 consecutive patients with schizophrenia with the help of semi-structured pro forma consisting of sociodemographic details, information regarding illness and treatment history, (PANSS), and Morisky Medication Adherence Scale-8 to assess medication adherence. Nonadherent patients were further assessed for their reasons for nonadherence.

Among the patients, 52% were low adherers (nonadherers). Factors associated with nonadherence were younger age of patients, male gender, low household income, higher PANSS score (positive, negative, and total score), lower grades of insight, lack of family history of psychiatric illness, responsibility of taking self-medications, first-generation antipsychotics, and number of drugs in prescription. Major reason for nonadherence given by patients were adverse effects of medications, treatment perceived as ineffective, financial problems, shame and stigma about illness and treatment, regarding treatment unnecessary and difficulty to access health-care facility.

Our study established high proportion of nonadherence in patients with schizophrenia and also brought out factors associated and reasons for nonadherence. Adequate psychoeducation of patients and their caretakers as well as psychosocial interventions, strengthening mental health infrastructure, and community mental health services will significantly improve treatment adherence.