Characteristic | 6-month follow-up | 12-month follow-up | ||
---|---|---|---|---|
Retained | Dropped out | Retained | Dropped out | |
(n = 3123) | (n = 2182) | (n = 2061) | (n = 3244) | |
Age (yrs) mean (SD) | 38.63(6.15) | 38.23(6.10) ** | 38.85(6.24) | 38.27(6.07) ** |
Sex n (%) | ||||
Male | 2865 (91.74) | 2071 (94.91) *** | 1898 (92.09) | 3038 (93.65) ** |
Female | 258 (8.26) | 111 (5.09) | 163 (7.91) | 206 (6.35) |
Employment n (%) | ||||
Employed | 1928 (61.74) | 1118 (51.24) *** | 1287 (62.45) | 1759(54.22) *** |
Unemployed | 1195 (38.26) | 1064 (48.76) | 774 (37.55) | 1485(45.78) |
Marital status n (%) | ||||
Married | 1445 (46.26) | 1004 (46.01) | 968 (46.97) | 1481(45.65) * |
Unmarried | 1698 (53.74) | 1178(53.99) | 1093 (53.03) | 1763(54.96) |
Education n (%) | ||||
Primary school | 611(19.56) | 427(19.57) * | 406(19.70) | 632(19.48) *** |
Junior school | 1923(61.58) | 1412(64.71) | 1241(60.21) | 2094(64.55) |
Senior school or higher | 589(18.86) | 343(15.72) | 414(20.19) | 518(15.97) |
HIV n (%) | ||||
Positive | 206(6.60) | 195(8.94) ** | 148(7.18) | 253(7.80) |
Negative | 2917(93.40) | 1987(91.06) | 1913(92.82) | 2991(92.20) |
HCV n (%) | ||||
Positive | 2427(79.73) | 1482(76.27) ** | 1626(80.34) | 2283(77.05) ** |
Negative | 617(20.27) | 461(23.73) | 398(19.66) | 680(22.95) |
Yrs of drug use before MMT | 15.22(5.06) | 14.74(5.00) ** | 15.45(4.88) | 14.75(5.12) *** |
mean (SD) | ||||
Methadone dosage (mg/day) mean (SD) | 51.11(22.05) | 44.10(18.94) *** | 52.38(22.17) | 45.59(19.98) *** |
Treatment adherence (days), mean (SD) | 183.00 | 36.00 | 267.00 | 53.00 |
(95.00 ~ 183.00) | (14.00 ~ 90.00) *** | (152.00 ~ 336.00) | (18.00 ~ 143.00) *** | |
Longest duration of abstinence (months) median (IQR) | 4.00(2.00 ~ 6.00) | 0.00(0.00 ~ 1.00) *** | 4.00(2.00 ~ 7.00) | 1.00(0.00 ~ 2.75) *** |