Table 3 Characteristics of the interviewees by study group
Group 1: currently ATS dependent (CDU) | Group 2: formerly ATS dependent users (FDU) | Group 3: currently frequent, non-dependent ATS users (CFU) | Group 4: formerly frequent, non-ATS dependent users (FFU) | Group 5: non-frequent ATS users (currently and formerly) (NFU) | Group 6: exposed non-ATS users (ENU) | Total | |
|---|---|---|---|---|---|---|---|
N | 47 | 56 | 48 | 37 | 49 | 42 | 279 |
Female | 46.8% | 44.6% | 25.0% | 45.9% | 40.8% | 45.2% | 41.2% |
Mean age (SD) | 32.2 (7.7) | 33.6 (8.6) | 29.3 (6.8) | 32.6 (9.5) | 31.0 (7.6) | 28.8 (6.8) | 31.3 (8.0) |
Mean age of onset/exposure ATS use (SD) | 16.6 (2.2) | 17.6 (4.7) | 18.6 (4.0) | 17.0 (4.3) | 18.8 (3.8) | 17.6 (3.4) | 17.7 (3.9) |
Mean duration of ATS use/exposition in years (SD) | 15.5 (8.0) | 12.5 (6.8) | 10.7 (5.3) | 9.9 (6.8) | 8.5 (6.5) | 11.2 (6.1) | 11.5 (6.9) |
Ever contact with drug service | 68.1% | 78.6% | 25.0% | 29.7% | 22.4% | 0.0% | 39.4% |
SDS ATS score (SD) | 7.2 (2.8) | 7.3 (3.4) | 1.9 (1.6) | 2.2 (1.8) | 0.3 (1.2) | 0.0 (0.0) | 3.3 (3.8) |
Daily ATS use (almost) | 74.5% | 70.9% | 20.8% | 22.2% | 4.1% | 0.0% | 33.9% |
Daily/weekly amphetamine use | 80.9% | 71.4% | 45.8% | 29.7% | 22.4% | 0.0% | 43.7% |
Daily/weekly methamphetamine use | 21.3% | 30.4% | 6.3% | 10.8% | 0.0% | 0.0% | 12.2% |
Daily/weekly MDMA use | 44.7% | 50.0% | 37.5% | 35.1% | 10.2% | 0.0% | 30.5% |
Ever used cannabis | 91.5% | 96.4% | 91.7% | 94.6% | 91.8% | 78.6% | 91.0% |
Ever used cocaine | 66.0% | 62.5% | 60.4% | 83.8% | 51.0% | 4.8% | 54.8% |
Ever daily alcohol use | 48.9% | 51.8% | 27.1% | 40.5% | 42.9% | 28.6% | 40.5% |