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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Int J Drug Policy. 2020 Jul 20;83:102864. doi: 10.1016/j.drugpo.2020.102864

Table 2.

Gender-stratified bivariable and multivariable logistic regression of factors associated with self-reported un fentanyl among a cohort of people who use drugs in Vancouver, Canada (N=578).

Characteristic Women (n=219)
Men (n=359)
Self-reported Unintentional Fentanyl Exposure
Unadjusted OR (95% CI) Adjusted ORd (95% CI) Self-reported Unintentional Fentanyl Exposure
Unadjusted OR (95% CI) Adjusted ORd (95% CI)
Yes n (%) 88 (40.2) No n (%) 131 (59.8) Yes n (%) 104 (29.0) No n (%) 255 (71.0)
Age, per year older 1.03 (1.00 –1.05) * 1.04 (1.02 – 1.06) *** 1.04 (1.02 – 1.06) ***
(Median, IQR) 40.9 (33.9 – 49.7) 36.7 (29.0 – 48.4) 51.2 (35.2 – 56.1) 41.7 (28.2 – 51.1)
Ethnicity 0.85 (0.48 – 1.48) 1.11 (0.70 – 1.78)
White 33 (37.5) 53 (41.4) 63 (60.6) 148 (58.0)
Non-white 55 (62.5) 75 (58.6) 41 (39.4) 107 (42.0)
Incarcerationa 1.53 (0.51 – 4.63) 0.68 (0.30 – 1.43)
Yes 7 (8.0) 7 (5.3) 9 (8.7) 31 (12.2)
No 81 (92.0) 124 (94.7) 95 (91.3) 223 (87.8)
Exchanged money for sexa 0.88 (0.47 – 1.62) 0.30 (0.02 – 1.66)
Yes 22 (25.0) 36 (27.5) 1 (1.0) 8 (3.1)
No 66 (75.0) 95 (72.5) 103 (99.0) 247 (96.9)
Experienced violencea 0.77 (0.34 – 1.68) 1.36 (0.70 – 2.54)
Yes 11 (12.5) 20 (15.6) 17 (16.3) 32 (12.6)
No 77 (87.5) 108 (84.4) 87 (83.7) 222 (87.4)
Downtown East Side residencya 1.90 (1.04 – 3.57) * 1.77 (0.93– 3.38) 1.09 (0.68 – 1.77)
Yes 68 (77.3) 84 (64.1) 67 (64.4) 159 (62.4)
No 20 (22.7) 47 (35.9) 37 (35.6) 96 (37.6)
Homeless/unstably houseda 1.10 (0.58 – 2.10) 0.92 (0.54 – 1.63)
Yes 68 (77.3) 99 (75.6) 81 (77.9) 202 (79.2)
No 20 (22.7) 32 (24.4) 23 (22.1) 53 (20.8)
Injection drug usea 1.01 (0.44 – 2.43) 0.45 (0.26 – 0.80) ** 0.42 (0.23 – 0.76) **
Yes 78 (88.6) 116 (88.5) 77 (74) 220 (86.3)
No 10 (11.4) 15 (11.5) 27 (26) 35 (13.7)
Daily heroin usea,b 0.42 (0.23 – 0.73) ** 0.44 (0.24 – 0.80) ** 0.45 (0.28 – 0.72) ** 0.61 (0.37 – 1.01)
Yes 46 (52.3) 95 (72.5) 37 (35.6) 140 (54.9)
No 42 (47.7) 36 (27.5) 67 (64.4) 115 (45.1)
Daily stimulant usea,c 0.90 (0.52 – 1.55) 0.89 (0.56 – 1.42)
Yes 40 (45.5) 63 (48.1) 40 (38.5) 105 (41.2)
No 48 (54.5) 68 (51.9) 64 (61.5) 150 (58.8)
Any benzodiazepine usea 0.73 (0.19 – 2.40) 1.63 (0.66 – 3.85)
Yes 4 (4.5) 8 (6.1) 9 (8.7) 14 (5.5)
No 84 (95.5) 123 (93.9) 95 (91.3) 241 (94.5)
Binge alcohol usea 0.81 (0.38 – 1.69) 1.60 (0.86 – 2.93)
Yes 13 (14.8) 23 (17.6) 20 (19.2) 33 (12.9)
No 75 (85.2) 108 (82.4) 84 (80.8) 222 (87.1)
Perceived risk of fentanyl overdose 2.29 (1.31 – 4.04) ** 1.96 (1.10– 3.49) * 1.07 (0.67 – 1.70)
High/Moderate 55 (62.5) 54 (40.5) 52 (52.0) 127 (50.4)
Low/No 32 (36.4) 72 (59.5) 48 (48.0) 125 (49.6)
Experienced anxiety, 1.31 (0.73 – 2.37) 0.85 (0.49 – 1.42)
Severe/Moderate 35 (43.2) 40 (36.7) 26 (26.3) 69 (29.6)
Mild/None 46 (52.8) 69 (63.3) 73 (73.7) 164 (70.4)
Carries Narcan 0.79 (0.41 – 1.53) 0.74 (0.46 – 1.20)
Yes 67 (76.1) 105 (80.2) 64 (61.5) 174 (68.2)
No 21 (23.9) 26 (19.8) 40 (38.5) 81 (31.8)
Major or persistent paina 0.85 (0.49 – 1.46) 1.04 (0.66 – 1.64)
Yes 39 (44.8) 64 (48.9) 50 (48.5) 121 (47.6)
No 48 (55.2) 67 (51.1) 53 (51.5) 133 (53.4)
*

p<0.05

**

p<0.01

***

p<0.001

a

reported in the last 6 months

b

heroin or ‘down’ includes heroin, fentanyl, speedball and goofball

c

stimulants include cocaine, crack cocaine, crystal methamphetamine, speedball and goofball