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Table 1 Baseline characteristicsa of street-involved youth in Vancouver stratified by unprotected sex in L6M,b 2005-2013 (n = 1,026)

From: Substance use patterns and unprotected sex among street-involved youth in a Canadian setting: a prospective cohort study

Characteristic

Total (%) (n = 1,026)

Unprotected Sex in L6Mb

Odds Ratio (95 % CI)

Yes (%) (n = 590)

No (%) (n = 436)

Female gender

    

 (yes vs. no)

327 (31.87)

213 (36.10)

114 (26.15)

1.60 (1.22-2.09)**

Age

    

 (≥median vs. <median)

624 (60.82)

354 (60.00)

270 (61.93)

0.92 (0.72-1.19)

Caucasian ancestry

    

 (yes vs. no)

698 (68.03)

420 (71.19)

278 (63.76)

1.40 (1.08-1.83)*

Stable relationship

    

 (yes vs. no)

296 (28.85)

224 (37.97)

72 (16.51)

3.16 (2.34-4.28)***

Homelessness in L6Mb

    

 (yes vs. no)

752 (73.29)

451 (76.44)

301 (69.04)

1.49 (1.12-1.97)*

Any crystal meth use in L6Mb,c

    

 (yes vs. no)

461 (44.93)

276 (46.78)

185 (42.43)

1.17 (0.91-1.50)

Any cocaine use in L6Mb,c

    

 (yes vs. no)

506 (49.32)

312 (52.88)

194 (44.50)

1.38 (1.07-1.77)*

Any heroin use in L6Mb,c

    

 (yes vs. no)

358 (34.89)

198 (33.56)

160 (36.70)

0.87 (0.67-1.13)

Any crack use in L6Mb,c

    

 (yes vs. no)

611 (59.55)

357 (60.51)

254 (58.26)

1.08 (0.84-1.40)

Any marijuana use in L6Mb

    

 (yes vs. no)

903 (88.01)

516 (87.46)

387 (88.76)

0.86 (0.58-1.27)

Any ecstasy use in L6Mb

    

 (yes vs. no)

334 (32.55)

211 (35.76)

123 (28.21)

1.42 (1.09-1.86)*

Any alcohol use in L6Mb

    

 (yes vs. no)

833 (81.19)

499 (84.58)

334 (76.61)

1.66 (1.21-2.28)**

Binge drug use in L6Mb,c

    

 (yes vs. no)

433 (42.20)

265 (44.92)

168 (38.53)

1.30 (1.01-1.67)*

Injection drug use in L6Mb

    

 (yes vs. no)

306 (29.82)

173 (29.32)

133 (30.50)

0.94 (0.72-1.23)

Multiple sex partners in L6Mb

    

 (>1 vs. ≤1)

558 (54.39)

371 (62.88)

187 (42.89)

2.26 (1.75-2.91)***

Sex work in L6Mb

    

 (yes vs. no)

108 (10.53)

66 (11.19)

42 (9.63)

1.18 (0.79-1.78)

  1. Notes:
  2. aCharacteristics for all participants were measured from the first study visit
  3. b‘L6M’ refers to behaviours and activities occurring in the last six months
  4. cRefers to injection or non-injection use
  5. * significant at p < 0.05; ** significant at p < 0.005; *** significant at p < 0.001