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Table 4 Level of poly-substance use, socio-demographic characteristics, risk behaviours, among poly- substance users residing in three communities in Cape Town, South Africa, 2015

From: Using respondent-driven sampling (RDS) to recruit illegal poly-substance users in Cape Town, South Africa: implications and future directions

  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
  1. aWeighted estimates