Characteristics of Medicaid recipients in Methadone Maintenance Treatment: A comparison across the lifespan.

Methadone Maintenance Treatment (MMT) is utilized by an increasingly broad age-range of individuals with opioid use disorders. The present study aims to (1) describe health, behavioral, and psychosocial characteristics among adults aged 50 years and older compared with younger adults enrolled in MMT, (2) describe socioeconomic and clinical characteristics by age and time in MMT and (3) investigate whether age influences the associations between duration of MMT and health and psychosocial characteristics. Our sample consisted of 1364 recipients from four MMT programs (age ranged from 18 to 77 years; mean: 38 years: standard deviation: 11.1 years) in Southern New England Using descriptive analysis and logistic regression, we determined that one-third (33%) of adults 50 years of age and older had been admitted or readmitted into MMT within the previous 6 months, 27% had been in treatment for 7-47 months, while 40% had been in treatment for at least 4 years. Psychosocial problems and smoking were both common (>80%) at the time of MMT enrollment but declined with longer duration of MMT for all age groups. The prevalence of metabolic conditions was associated with increased duration of MMT for younger adults for both age (1.03; CI 1.02-1.05; p < 0.001) and time in treatment (1.29; 1.12-1.44; p < 0.001; interaction term 0.0996; CI 0.993-0.998). Tailored strategies to enhance engagement, retention, and prevention among MMT recipients should include considerations of age, health status upon enrollment, duration of treatment, and developmental context.