| Site 1 | Site 2 | Site 3 |  | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Variable | Sample N (%) | Adjusteda % | 95 % CI | Sample N (%) | Adjusteda % | 95 % CI | Sample N (%) | Adjusteda % | 95 % CI | x2 |
(p-value) | ||||||||||
Poly substance use | ||||||||||
  2 –3 substances | 45 (35.7) | 43.7 | 23.3 –58.5 | 53 (51.5) | 56.5 | 44.1 –67.0 | 24 (22.2) | 27.7 | 15.7 –39.3 |  |
   > 3 substances | 81 (64.3) | 56.3 | 41.5 –76.7 | 50 (48.5) | 43.5 | 32.7 –55.9 | 84 (77.8) | 72.3 | 60.7 –84.3 |  |
Ses variables | ||||||||||
 Age |  |  |  |  |  |  |  |  |  |  |
  18 –24 | 24 (19.0) | 35 | 16.3 –47.6 | 14 (13.6) | 13.5 | 6.20 –20.7 | 51 (47.2) | 54 | 38.6 –68.9 | 53.079 |
  25 –30 | 43 (34.1) | 33.6 | 23.1 –53.3 | 31 (30.1) | 33.7 | 23.5 –46.2 | 35 (32.4) | 30.5 | 19.7 –44.1 | 0.00 |
  31 –35 | 29 (23.0) | 14.4 | 6.4 –24.0 | 17 (16.5) | 15.4 | 6.8 –24.1 | 13 (12.0) | 5.9 | 0.2 –10.3 |  |
   > 35 | 30 (23.8) | 17 | 7.1 –27.3 | 41 (39.8) | 37.4 | 26.0 –49.9 | 9 (8.3) | 9.6 | 2.4 –17.6 |  |
 | (mean 31.1; SD 8.3) | (mean age 34.1: SD 8.7) |  |  | ||||||
 Gender | ||||||||||
  Male | 62 (49.2) | 34.8 | 22.0 –51.8 | 58 (56.3) | 52.7 | 38.9 –65.1 | 96 (88.9) | 89.6 | 80.6 –97.6 | 43.798 |
  Female | 64 (50.8) | 65.2 | 48.2 –78.0 | 45 (43.7) | 47.3 | 34.9 –61.1 | 12 (11.1) | 10.4 | 2.4 –19.4 | 0.00 |
 Employment | ||||||||||
  Unemployed | 95 (75.4) | 75.3 | 61.7 –91.0 | 47 (45.6) | 45.2 | 34.2 –57.1 | 87 (80.6) | 79.4 | 68.6 –89.2 | 34.649 |
  Employed | 31 (24.6) | 24.7 | 9.0 –38.3 | 56 (54.4) | 54.8 | 42.9 –65.8 | 21 (19.4) | 20.6 | 10.8 –31.4 | 0.00 |
 Education |  |  |  |  |  |  |  |  |  |  |
  Primary/none | 24 (19.0) | 16.4 | 7.9 –27.5 | 34 (33.0) | 34.1 | 23.9 –46.0 | 14 (13.0) | 17.3 | 8.1 –28.5 | 13.254 |
  High/tertiary | 102 (81.0) | 83.6 | 72.5 –92.1 | 69 (67.0) | 65.9 | 54.0 –76.1 | 94 (87.0) | 82.7 | 71.5 –91.9 | –0.001 |
Ses | ||||||||||
  Not enough for food | 50 (40.3) | 42.6 | 25.2 –56.6 | 46 (47.4) | 43.5 | 28.6 –58.7 | 50 47.2) | 43.1 | 31.8 –56.2 | 13.378 |
  Basics only | 57 (46.6) | 50.5 | 35.9 –68.1 | 28 (28.9) | 33.8 | 19.6 –49.2 | 34 (32.1) | 37.5 | 25.7 –50.3 | –0.037 |
  Food, clothes + extras | 17 (13.7) | 6.9 | 3.2 –12.4 | 23 (23.7) | 22.7 | 12.3 –35.4 | 22 (20.8) | 19.4 | 0.1 –27.8 |  |
Risk behaviours | ||||||||||
Had sex for drugs | 19 (15.1) | 11.6 | 4.8 –20.5 | 21 (20.4) | 19.4 | 10.3 –29.6 | 7 (6.5) | 10.5 | 3.4 –18.9 | 8.71 |
–0.013 | ||||||||||
Stole to buy drugs | 51 (40.5) | 34 | 22.6 –51.8 | 23 (22.3) | 19.7 | 10.8 –31.8 | 35 (32.4) | 23.3 | 15.5 –32.9 | 8.528 |
–0.014 | ||||||||||
Arrested | 34 (27.0) | 19.4 | 10.1 –31.3 | 46 (44.7) | 44 | 32.8 –52.5 | 43 (39.8) | 34.9 | 25.7 –48.4 | 8.394 |
–0.015 | ||||||||||
Cage | ||||||||||
Low risk | 33 (26.2) | 30 | 13.7 –39.4 | 25 (24.3) | 27.5 | 16.4 –38.2 | 19 (17.6) | 15.2 | 8.6 –23.5 | 2.609 |
Problematic use | 93 (73.8) | 70 | 60.6 –86.3 | 78 (75.7) | 72.5 | 61.8 –83.6 | 89 (82.4) | 84.8 | 76.5 –91.4 | –0.271 |
Treatment | ||||||||||
Ever Treatment (No/Yes) | 102 (81.0) | 75.9 | 57.9 –89.5 | 68 (66.0) | 63.8 | 51.8 –76.1 | 97 (89.8) | 88.5 | 78.0 –95.2 | 20.992 |
 | 24 (19.0) | 24.1 | 10.5 –42.1 | 35 (34.0) | 36.2 | 23.9 –48.2 | 11 (10.2) | 11.5 | 4.8 –22.0 | 0 |
Future Treatment (No/Yes) | 60 (39.7) | 38.6 | 23.6 –54.6 | 29 (28.2) | 32.1 | 22.2 –43.7 | 27 (25.0) | 26.2 | 17.2 –37.4 | 6.563 |
 | 76 (60.3) | 61.4 | 45.4 –76.4 | 74 (71.8) | 67.9 | 56.3 –77.8 | 81 (75.0) | 73.8 | 62.6 –82.8 | –0.038 |