A study on dropping-out rate and associated factors of patients with methadone maintenance treatment in Beijing from 2010 to 2014

Objective To study on dropping-out rate and associated influencing factors of patients with methadone maintenance treatment (MMT) in Beijing from 2010 to 2014. Methods Cases were collected from MMT information system from January 1st, 2010 to December 31st, 2014 with detailed information and analyzed with SPSS 18.0. Results 1 923 cases were included in total and the dropping-out rate was 42.38%. It showed that the divorced or widowed had higher dropping-out risk compared with the married (OR=1.47,95% CI:1.11-1.99). In the way of contact frequency with drug addicts, cases contacted with drug addicts often(OR=1.45,95% CI:1.05-2.01) or daily(OR=1.86, 95% CI:1.34-2.59)had higher dropping-out risk than occasional contact, cases who were treated less than 720 days had higher dropping-out risk than those who above 720 days, and treatment time during 31-90 days(OR=22.25,95% CI：12.38-39.96)was with the highest dropping-out risk . During the treatment,the higher positive rate of urine test, the greater the risk of dropping-out. Conclusions MMT clinics should increase urine morphine test during the medicine using and we should strengthen the psychological behavior intervention especially on those whose treatment time is too short and with high positive rate of urine test to reduce dropping-out rate .