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. 2023 Aug 30;20:117. doi: 10.1186/s12954-023-00833-7

Table 1.

Most recent characteristics of VIDUS/ACCESS/ARYS participants who reported at least daily use of drugs in the past 6 months in Vancouver, Canada, 2019–2021 (n = 995)

Characteristic Total
n (%)
995 (100%)
Reporting police seizure of drugs without arresta during the study period P-value
Yes
n (%)
63 (6.3%)
No
n (%)
932 (93.7%)
Cohort designation
 VIDUS 437 (43.9%) 35 (55.6%) 402 (43.1%) 0.105
 ACCESS 271 (27.2%) 11 (17.5%) 260 (27.9%)
 ARYS 287 (28.8%) 17 (27.0%) 270 (29.0%)
Calendar year of interview
 2021 522 (52.5%) 23 (36.5%) 499 (53.5%) 0.009
 2019–2020 473 (47.5%) 40 (63.5%) 433 (46.5%)
Age (median, 1st, and 3rd quartiles) 41 (31–54) 36 (31–42) 42 (31–55) 0.001
Self-identified ethnicity/ancestry
 Indigenous 382 (38.9%) 17 (27.0%) 365 (39.8%) 0.051
 Person of colour 59 (6.0%) 7 (11.1%) 52 (5.7%)
 White 540 (55.1%) 39 (61.9%) 501 (54.6%)
Self-identified gendera
 Woman, transgender, other 407 (40.9%) 19 (30.2%) 388 (41.6%) 0.073
 Man 588 (59.1%) 44 (69.8%) 544 (58.4%)
≥ Daily unregulated opioids usea,b 580 (58.3%) 50 (79.4%) 530 (56.9%) 0.001
≥ Daily unregulated stimulants usea,c 543 (54.6%) 45 (71.4%) 498 (53.4%) 0.006
≥ Daily cannabis usea 360 (36.8%) 14 (23.0%) 346 (37.7%) 0.021
Opioid withdrawala 498 (50.3%) 45 (71.4%) 453 (48.8%) 0.001
Always/usually injected drugs in public placesa 90 (9.1%) 14 (22.6%) 76 (8.2%) < 0.001
Non-fatal overdosea 189 (19.0%) 19 (30.2%) 170 (18.3%) 0.020
Administered naloxone to someonea 283 (29.5%) 32 (53.3%) 251 (27.9%) < 0.001
Homelessa 219 (22.1%) 28 (45.2%) 191 (20.6%) < 0.001
Sex worka 121 (12.3%) 11 (17.5%) 110 (11.9%) 0.197
Working in the unregulated drug marketa 268 (26.9%) 40 (63.5%) 228 (24.5%) < 0.001
Street-based income generation (e.g. recycling and panhandling)a 265 (26.6%) 23 (36.5%) 242 (26.0%) 0.067
Incarcerationa 73 (7.4%) 24 (38.1%) 49 (5.3%) < 0.001
Inability to access health and/or social servicesa 245 (24.8%) 24 (38.1%) 221 (23.9%) 0.012

ACCESS: The AIDS Care Cohort to evaluate Exposure to Survival Services Study. ARYS: The At-Risk Youth Study. VIDUS: The Vancouver Injection Drug Users Study

For the calculation of percentages, missing observations (max. 2.1% per variable) were excluded from the denominators

P-values were derived from the Pearson’s Chi-squared test for all variables except for age, which used the Wilcoxon rank-sum test

aRefers to behaviours and events in the 6 months prior to an interview

bUnregulated opioids include heroin, fentanyl, down, speedball, or goofball

cUnregulated stimulants include crystal methamphetamine, powder/crack cocaine, speedball, or goofball