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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