Reliability and validity of the Treatment Outcome Profile among patients attending methadone maintenance treatment programs in Kunming, China

About 67% of the 197 interviewers were male and 33% were female. Test-retest reliability of TOP scores (after 10 days interval) were good (K = 0.65 to 0.95), inter-rater correlations (ICC) ranged from 0.7 to 0.9, and the criterion validity ranged from 0.72 to 0.88. TOP covers a large scope of problems encountered by drug users needed for treatment. The Chinese version of TOP is a reliable and valid assessment tool.