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Table 1 Characteristics of younger participants stratified by engaging in nonmedical prescription opioid use over the study period, 2013–2015 (n = 405)

From: An age-based analysis of nonmedical prescription opioid use among people who use illegal drugs in Vancouver, Canada

Characteristica Total (%) (n = 405) Nonmedical Prescription Opioid Use p - value
Yes (%) (n = 160) No (%) (n = 245)
Age (M [IQR]) 25 (22–28) 23 (21–26) 26 (23–28) < 0.001
Any cocaine useb, c 123 (30.4) 60 (37.5) 63 (25.7) 0.012
Any crack cocaine useb, c 138 (34.1) 70 (43.8) 68 (27.8) < 0.001
Any crystal meth useb, c 268 (66.2) 121 (75.6) 147 (60.0) 0.001
Any heroin useb, c 193 (47.7) 114 (71.3) 79 (32.2) < 0.001
Any non-fatal overdoseb, c 93 (23.0) 54 (33.8) 39 (15.9) < 0.001
Binge drug useb, c 208 (51.4) 108 (67.5) 100 (40.8) < 0.001
Caucasian ancestry 250 (61.7) 100 (62.5) 150 (61.2) 0.796
Difficulty accessing servicesb, d 151 (37.3) 73 (45.6) 78 (31.8) 0.005
Drug dealingb 131 (32.3) 78 (48.8) 53 (21.6) < 0.001
Female 135 (33.3) 49 (30.6) 86 (35.1) 0.350
Homelessb 202 (49.9) 95 (59.4) 107 (43.7) 0.002
Incarcerationb 57 (14.1) 26 (16.3) 31 (12.7) 0.297
Regular employmentb 191 (47.2) 81 (50.6) 110 (44.9) 0.259
Sex workb 48 (11.9) 26 (16.3) 22 (9.0) 0.027
  1. a. Comparison is yes versus no unless otherwise specified
  2. b. Refers to activities, behaviours, and experiences in the last six months
  3. c. Includes injection and non-injection drug use
  4. d. Includes health and social services