Psychosocial functioning among current noninjecting opioid users: Is there any difference between methadone maintenance treatment and treatment as usual?

Background: Patients with opioid use disorder (OUD) have a significant problem in psychosocial functioning domains, which are not systematically studied in India. This study aimed to evaluate the psychosocial functioning in current noninjecting opioid users on Methadone Maintenance Treatment (MMT) versus Treatment as Usual (TaU: Chlordiazepoxide, Zolpidem, Trazodone, Tramadol, Tapentadol, and Buprenorphine). Materials and Methods: It is a cross-sectional study on patients of current noninjecting OUD on MMT or TaU for at least in the past month. Comorbidities and illness severity were assessed with the help of Mini-International Neuropsychiatric Interview 7.0.2 and World Health Organization-The Alcohol, Smoking, and Substance Involvement Screening Test 3.0, respectively. Social and occupational functioning assessment scale (SOFAS), WHO Quality of Life (WHOQoL-BREF), and Client Satisfaction Questionnaire (CSQ-8) assessed the sociooccupational functioning and QoL and client satisfaction. A total of 67 participants (37 on MMT and 30 on TaU) were included in the study. Results: A significant difference between the two groups (MMT better than TaU) was based on SOFAS scores, CSQ-8, and WHOQoL-BREF. In the TaU group, there was a significant negative correlation between risk of addiction severity with sociooccupational functioning (r = -0.5; P = 0.0046), physical health (r = -0.48; P = 0.0087) and social relationship (r = -0.47; P = 0.0087) domain of QoL. In the MMT group, the association between risk of addiction severity with sociooccupational functioning, domains of QoL, and client satisfaction were insignificant. Conclusion: Sociooccupational Functioning, Client Satisfaction, and QoL of patients maintained on MMT are better than those on TaU.