Skip to main content

Table 3 Addiction history of patients receiving MMT (n = 810) in Tehran according to their main drug of abuse

From: Patterns of pre-treatment drug abuse, drug treatment history and characteristics of addicts in methadone maintenance treatment in Iran

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)
  1. *Variables with significant differences, p < 0.05.