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Table 2 Characteristics of older participants stratified by engaging in nonmedical prescription opioid use over the study period, 2013–2015 (n = 757)

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

Characteristica Total (%)
(n = 757)
Nonmedical Prescription Opioid Use p - value
Yes (%)
(n = 262)
No (%)
(n = 495)
Age (M [IQR]) 48 (40–55) 47 (38–53) 49 (41–56) < 0.001
Any cocaine useb, c 205 (27.1) 98 (37.4) 107 (21.6) < 0.001
Any crack cocaine useb, c 332 (43.9) 135 (51.5) 197 (39.8) 0.002
Any crystal meth useb, c 223 (29.5) 124 (47.3) 99 (20.0) < 0.001
Any heroin useb, c 362 (47.8) 200 (76.3) 162 (32.7) < 0.001
Any non-fatal overdoseb, c 60 (7.9) 43 (16.4) 17 (3.4) < 0.001
Binge drug useb, c 235 (31.0) 118 (45.0) 117 (23.6) < 0.001
Caucasian ancestry 452 (59.7) 164 (62.6) 288 (58.2) 0.239
Difficulty accessing servicesb, d 149 (19.7) 78 (29.8) 71 (14.3) < 0.001
Drug dealingb 171 (22.6) 95 (36.3) 76 (15.4) < 0.001
Female 257 (33.9) 92 (35.1) 165 (33.3) 0.622
Homelessb 149 (19.7) 76 (29.0) 73 (14.7) < 0.001
Incarcerationb 51 (6.7) 28 (10.7) 23 (4.6) 0.002
Regular employmentb 202 (26.7) 59 (22.5) 143 (28.9) 0.059
Sex workb 72 (9.5) 36 (13.7) 36 (7.3) 0.004
  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