Table 3 Addiction history of patients receiving MMT (n = 810) in Tehran according to their main drug of abuse
Variable | Opium (N %) | Crystalline heroin (N %) | Other drugs (N %) | Total (N %) |
|---|---|---|---|---|
Age of starting drug abuse (years)* | ||||
≤ 17 | 55 (10) | 43 (23) | 11 (18) | 109 (14) |
18–24 | 210 (38) | 102 (53) | 31 (51) | 343 (43) |
25–34 | 187 (34) | 43 (23) | 14 (23) | 244 (31) |
35 ≤ | 97 (18) | 3 (2) | 5 (8) | 105 (13) |
Total (N) | 549 | 191 | 61 | 801 |
Mean (SD) | 26.2 (8.6) | 21.2 (5.3) | 23 (7.8) | 24.8 (8.2) |
Duration of addiction (years)* | ||||
< 1 | 13 (2) | 6 (3) | 4 (7) | 23 (3) |
1–5 | 144 (26) | 61 (33) | 18 (30) | 223 (28) |
6–10 | 156 (29) | 64 (34) | 13 (21) | 233 (29) |
11 ≤ | 233 (43) | 56 (30) | 26 (43) | 315 (40) |
Total (N) | 546 | 187 | 61 | 794 |
Mean (SD) | 11.6 (8.4) | 8.7 (6.2) | 9.9 (7.8) | 10.8 (7.9) |
Duration of current treatment (months)* | ||||
< 1 | 67 (12) | 21 (11) | 5 (8) | 93 (12) |
1–5.9 | 144 (26) | 61 (32) | 12 (20) | 217 (27) |
6–11.9 | 126 (23) | 47 (25) | 4 (7) | 177 (22) |
12–23.9 | 112 (20) | 32 (17) | 10 (16) | 154 (19) |
24 ≤ | 102 (19) | 29 (15) | 30 (49) | 161 (20) |
Total (N) | 551 | 190 | 61 | 802 |
Mean (SD) | 12.8 (15.6) | 10.3 (10.7) | 25.2 (25.5) | 13.1 (16) |
Number of previous MMT admissions* | ||||
0 | 454 (82) | 139 (73) | 48 (77) | 641 (80) |
1 ≤ | 97 (18) | 52 (27) | 14 (23) | 163 (20) |
Total (N) | 551 | 191 | 62 | 804 |
Dosage of methadone (mg)* | ||||
≤ 30 mg | 193 (36) | 41 (22) | 16 (26) | 250 (32) |
35–65 mg | 189 (35) | 58 (31) | 18 (30) | 265 (34) |
70 mg ≤ | 158 (29) | 90 (48) | 27 (44) | 275 (35) |
Total (N) | 540 | 189 | 61 | 790 |
Mean (SD) | 57.9 (51.6) | 70.5 (46) | 80.7 (75) | 62.6 (52.9) |
Drug cost in the last month before treatment entry ($)* | ||||
< 50 | 93 (18) | 7 (4) | 12 (20) | 112 (15) |
50–99 | 133 (25) | 6 (3) | 7 (12) | 146 (19) |
100–199 | 198 (38) | 34 (18) | 10 (16) | 242 (31) |
200–499 | 85 (16) | 97 (52) | 15 (25) | 197 (26) |
500 ≤ | 17 (3) | 43 (23) | 17 (28) | 77 (10) |
Total (N) | 526 | 187 | 61 | 774 |
Mean (SD) | 133 (155) | 381 (372) | 303 (278) | 206 (259) |