| Intervention | Control | ||||
---|---|---|---|---|---|---|
 | Baseline | End of intervention | 1 month post-intervention | Baseline | End of intervention | 1 month post-intervention |
 | N = 52 | N = 24 | N = 22 | N = 47 | N = 27 | N = 23 |
Injecting risk practicesa | ||||||
 Mean (SD) | 2.5 (2.44) | 1.9 (2.16) | 1.7 (2.82) | 2.7 (2.93) | 2.6 (2.69) | 2.6 (3.20) |
 Median (min, max) | 2 (0, 9) | 1 (0, 9) | 1 (0, 9) | 1 (0, 9) | 1 (0, 9) | 1 (0, 9) |
Sexual risk behavioursb | ||||||
 Mean (SD) | 3.8 (2.08) | 4.3 (1.31) | 4.4 (1.92) | 3.8 (1.80) | 3.7 (1.98) | 3.1 (1.73) |
 Median (min, max) | 5 (0, 7) | 4.5 (2, 7) | 5 (0, 7) | 4 (0, 7) | 4 (0, 6) | 3 (0, 6) |
Self-efficacyc | ||||||
 Mean (SD) | 24.1 (4.76) | 24.8 (3.23) | 25.3 (3.24) | 23.9 (4.75) | 23.7 (5.55) | 25.0 (5.26) |
 Median (min, max) | 25 (10, 31) | 26 (17, 31) | 25 (17, 32) | 23 (16, 32) | 23 (14, 32) | 25 (11, 32) |
HIV transmission knowledged | ||||||
 Mean (SD) | 10.4 (2.53) | 11.3 (1.92) | 11.4 (1.59) | 10.5 (2.23) | 11.3 (1.98) | 11.1 (2.19) |
 Median (min, max) | 11 (4, 14) | 11.5 (7, 14) | 12 (7, 14) | 11 (4, 14) | 12 (6, 14) | 12 (4, 14) |
HCV transmission knowledgee | ||||||
 Mean (SD) | 23.8 (3.98) | 24.9 (3.49) | 24.2 (3.75) | 24.8 (3.15) | 25.1 (2.18) | 24.3 (2.99) |
 Median (min, max) | 24.5 (13, 30) | 26 (14, 29) | 24 (15, 29) | 25 (20, 29) | 25 (20, 29) | 25 (14, 28) |
HBV transmission knowledgef | ||||||
 Mean (SD) | 10.2 (3.01) | 11.1 (2.10) | 11.0 (2.42) | 10.4 (2.45) | 10.6 (2.40) | 10.0 (2.70) |
 Median (min, max) | 11 (0, 14) | 11 (7, 14) | 11 (7, 15) | 11 (4, 14) | 11 (6, 14) | 11 (3, 14) |
Withdrawal preventiong | ||||||
 Mean (SD) | 6.2 (4.05) | 6.5 (4.19) | 5.8 (3.94) | 6.9 (4.32) | 6.3 (4.42) | 5.6 (3.45) |
 Median (min, max) | 6 (0, 19) | 6 (0, 17) | 6 (0, 13) | 7 (0, 17) | 4 (0, 17) | 5 (0, 15) |
Motivation to change (for self)h | ||||||
 Mean (SD) | 4.5 (0.83) | 4.5 (0.66) | 4.6 (0.49) | 4.4 (0.80) | 4.7 (0.45) | 4.6 (0.58) |
 Median (min, max) | 5 (2, 5) | 5 (3, 5) | 5 (4, 5) | 5 (2, 5) | 5 (4, 5) | 5 (3, 5) |
Motivation to change (for others)h | ||||||
 Mean (SD) | 4.4 (0.82) | 4.3 (0.70) | 4.5 (0.51) | 4.4 (0.85) | 4.9 (0.36) | 4.7 (0.54) |
 Median (min, max) | 5 (2, 5) | 4 (3, 5) | 4.5 (4, 5) | 5 (0, 5) | 5 (4, 5) | 5 (3, 5) |