Table 3

Weighted prevalences for risk factors for HIV infection by time in Canada
Risk factors 0-5 year (n = 45) >5 to 15 years (n = 51) >15 years (n = 57) Canadian-born (n = 29) P-value
wPrev (95% CI) wPrev (95% CI) wPrev (95% CI) wPrev (95% CI)
Factors associated with exposure to HIV
Age of sexual debut 0.070a
  Never had sex 26.7 (14.5, 43.8) 21.8 (8.4, 45.7) 3.7 (1.1, 12.2) 6.9 (1.9, 21.9)
  12 years old or younger 9.3 (2.2, 32.2) 1.3 (0.2, 9.3) 13.4 (4.3, 34.5) 5.3 (1.0, 23.4)
  13 to 15 years old 8.6 (3.0, 22.4) 8.3 (3.1, 20.2) 10.3 (3.3, 27.7) 17.1 (7.1, 36.0)
  16 to 18 years old 32.7 (17.4, 52.7) 17.8 (8.5, 33.5) 37.7 (23.6, 54.3) 31.3 (14.8, 54.4)
  19+ years old 19.3 (10.4, 33.1) 44.4 (22.8, 68.2) 22.4 (12.8, 36.3) 37.6 (18.2, 62.0)
Engaged in transactional sex —— 3.0 (0.7, 11.8) 1.3 (0.2, 8.5) 8.5 (2.3, 26.6) 0.425b
History of forced/unwanted sex 11.5 (4.3, 27.4) 9.4 (3.7, 21.7) 16.0 (8.5, 27.9) 58.5 (37.2, 77.0) <0.001a*
Had a sexual partner who injected drugs —— —— 1.0 (0.1, 8.0) 11.0 (3.7, 28.8) 0.113b
Factors associated HIV exposure and transmission
Ever test for HIV 76.1 (60.4, 86.9) 60.1 (37.8, 78.8) 41.5 (26.6, 58.2) 72.0 (51.5, 86.1) 0.131a
HIV test in Canada, past year 21.0 (11.5, 35.0) 15.0 (7.4, 28.0) 17.7 (7.6, 36.0) 7.4 (2.1, 22.6) 0.551a
Shared drug use equipment —— —— —— 4.2 (0.8, 19.5) 0.392b
Abstinence, lifetime 26.7 (14.5, 43.8) 21.8 (8.4, 45.7) 3.7 (1.1, 12.2) 6.9 (1.9, 21.9) 0.001a*
Abstinence, past year 52.0 (34.6, 69.0) 32.9 (16.2, 55.4) 20.4 (10.5, 36.0) 10.0 (3.4, 25.9) 0.011a*
Unprotected sex, cohabiting regular partner, past year 28.7 (16.0, 46.1) 51.6 (29.7, 72.9) 67.0 (49.6, 80.7) 44.9 (25.4, 66.2) 0.090a
Unprotected sex, non-cohabiting regular partner, past year 17.5 (8.0, 34.0) 43.4 (22.0, 67.5) 54.1 (37.7, 69.7) 38.1 (20.6, 59.3) 0.101a
Unprotected sex during last intercourse, regular partner 20.1 (10.2, 35.7) 50.3 (28.5, 72.1) 55.1 (38.6, 70.6) 25.8 (12.5, 45.9) 0.027a*
Unprotected sex, casual partner, past year 3.5 (0.8, 13.4) 2.2 (0.4, 10.7) 15.1 (5.5, 35.2) 5.5 (1.3, 20.0) 0.056 a
Unprotected sex during last intercourse, casual partner —— 25.2 (7.3, 59.2) 10.3 (2.9, 30.3) 5.5 (1.3, 20.0) 0.066 b
Never using condom, past year 20.6 (10.5, 36.6) 31.1 (17.9, 48.3) 50.8 (34.0, 67.5) 43.6 (23.5, 66.0) 0.103a
Ever mixed sex with drugs or alcohol 14.3 (6.7, 28.0) 19.8 (9.8, 36.0) 43.6 (28.2, 60.4) 63.9 (40.4, 82.1) 0.001a*
Non-monogamous sexual partnership, past year 15.7 (5.7, 36.7) 7.3 (2.2, 21.2) 18.1 (7.7, 37.2) 16.5 (6.5, 36.0) 0.644a
History of sexually transmitted infections 6.1 (2.0, 17.1) 13.3 (5.7, 28.2) 31.4 (17.7, 49.3) 42.3 (23.1, 64.1) 0.032a*
Number of sex partners, lifetime 0.021b*
  None 26.7 (14.5, 43.8) 21.8 (8.4, 45.7) 3.7 (1.1, 12.2) 6.9 (1.9, 21.9)
  1 1.1 (0.1, 9.8) 24.2 (6.7, 58.6) 9.2 (4.0, 19.4) ——
  2 to 4 24.3 (13.5, 39.7) 21.9 (11.2, 38.5) 20.7 (11.3, 35.0) 6.6 (1.8, 21,5)
  5 to 9 22.7 (10.0, 43.8) 8.5 (3.3, 20.4) 26.0 (13.4, 44.2) 23.4 (9.2, 48.1)
  10 to 19 3.3 (0.8, 13.2) 8.1 (2.5, 23.3) 8.6 (3.2, 21.2) 34.3 (15.9, 59.1)
  20 or more 7.9 (1.5, 32.4) 3.5 (0.9, 12.6) 18.3 (7.8, 37.3) 14.4 (5.5, 32.6)
Number of sex partners, past year 0.003 a*
  0 52.0 (34.6, 69.0) 32.9 (16.2, 55.4) 20.4 (10.5, 36.0) 10.0 (3.4, 25.9)
  1 27.4 (15.3, 44.2) 24.8 (13.0, 42.2) 47.1 (31.4, 63.3) 56.9 (34.6, 76.8)
  2 10.1 (2.6, 32.2) 35.0 (14.7, 62.8) 18.3 (8.5, 34.9) 3.9 (0.7, 17.8)
  3 or more 6.8 (2.0, 20.7) 4.2 (0.8, 20.2) 12.4 (4.3, 31.2) 29.2 (12.2, 55.0)

n = column total, not adjusted for nonresponse using sample weights.

a P-value from Rao-Scott chi-square test.

b P-value from Rao-Scott chi-square test with assumed design correction of 2 (conservative estimate).

*Statistically significant at p = 0.05.

Baidoobonso et al.

Baidoobonso et al. BMC Public Health 2013 13:184   doi:10.1186/1471-2458-13-184

Open Data