Outcomes of Patients in Long-Term Opioid Maintenance Treatment.

Background: Despite the importance of duration of opioid maintenance treatment (OMT), only few studies have reported outcomes of long-term OMT.

Objectives: To describe outcomes of long-term (> 5 years) OMT patients with respect to substance use, physical and mental health, and socioeconomic characteristics.

Methods: Patients (n = 160) were recruited from 15 OMT offices in different regions of Germany.