Background
Method
Sampling
Measures
Overall n = 2062 | Lifetime reported single substance user n = 945 | Lifetime reported multiple substance user n = 405 | |
---|---|---|---|
% | % | % | |
Amyl nitrites (Poppers) | 63.2 | 96.4 | 96.8 |
5-methoxy-N,N-diisopropyltryptamine (5MEO-DIPT) | 9.3 | 0.2 | 46.9 |
Marijuana | 5.7 | 1.6 | 25.4 |
Magic mushrooms | 3.3 | 0.1 | 16.8 |
Viagra | 3.1 | 0.3 | 15.1 |
Methylenedioxymethamphetamine (Ecstasy) | 2.8 | 0.2 | 13.8 |
Methamphetamine | 2.6 | 0 | 13.3 |
Psychotropic agents | 2.6 | 0.6 | 11.9 |
Thinner | 1.6 | 0.1 | 7.7 |
Crack or Cocaine | 0.8 | 0 | 4.0 |
Lysergic acid diethylamide(LSD) | 0.6 | 0 | 3.0 |
Heroin | 0.2 | 0 | 1.5 |
Injectable steroids | 0.1 | 0 | 0.7 |
Statistical analysis
Results
Demographic characteristics
Substance use
Correlates of type of substance and sexual behaviour
Overall n = 2062 | Never users n = 712 | Lifetime reported single substance user n = 945 | Lifetime reported multiple substance user n = 405 | ||||
---|---|---|---|---|---|---|---|
% | % | % |
P value | % |
P value | ||
Age group | 14–19 | 7.8 | 11.5 | 6.1 | .000 | 5.5 | .000 |
20–29 | 51.4 | 52.0 | 53.2 | 48.3 | |||
30–39 | 30.6 | 24.3 | 32.8 | 37.8 | |||
40+ | 9.5 | 12.2 | 8 | 8.5 | |||
Education level | No University degree | 40.2 | 36.5 | 40.5 | .103 | 45.9 | .002 |
University degree | 59.8 | 63.5 | 59.5 | 54.1 | |||
Sexual orientation | Gay | 70.5 | 62.8 | 75.2 | .000 | 73.1 | .002 |
Bisexual | 20.8 | 25.7 | 18.2 | 18 | |||
Other | 8.7 | 11.5 | 6.6 | 8.9 | |||
Currently have a casual sex partner | No | 70.0 | 78.7 | 69.9 | .000 | 54.8 | .000 |
Yes | 30.0 | 21.3 | 30.1 | 45.2 | |||
Depression1
| Low | 81.7 | 84.3 | 83.4 | .638 | 73.3 | .000 |
High | 18.3 | 15.7 | 16.6 | 26.7 | |||
HIV status | Negative | 97.2 | 99.3 | 97.7 | .010 | 92.6 | .000 |
Positive | 2.8 | 0.7 | 2.3 | 7.4 | |||
Syphilis | No | 92.3 | 98.5 | 92.0 | .000 | 82.2 | .000 |
Yes | 7.7 | 1.5 | 8.0 | 17.8 | |||
Hepatitis A | No | 98.7 | 99.2 | 99.2 | 1.00 | 97.0 | .011 |
Yes | 1.3 | 0.8 | 0.8 | 3.0 | |||
Hepatitis B | No | 95.1 | 98.6 | 95.0 | .000 | 89.1 | .000 |
Yes | 4.9 | 1.4 | 5.0 | 10.9 | |||
UAI in the previous 6 month | No anal intercourse | 56.6 | 18.8 | 7.1 | .000 | 4.7 | .000 |
Protected | 21.3 | 49.4 | 44.3 | 38.3 | |||
Unprotected | 22.1 | 31.7 | 48.6 | 57.0 | |||
Number of sexual partners in the previous 6 months | 0 | 18.9 | 26.7 | 15.7 | .000 | 12.6 | .000 |
1 | 23.0 | 30.1 | 20.1 | 17.3 | |||
2–3 | 23.7 | 24.0 | 24.9 | 20.5 | |||
4–5 | 14.7 | 9.8 | 17.6 | 16.5 | |||
6+ | 19.7 | 9.4 | 21.8 | 33.1 | |||
Sex club in the previous 6 months | No | 52.0 | 69.0 | 46.2 | .000 | 35.8 | .000 |
Yes | 48.0 | 31.0 | 53.8 | 64.2 | |||
Gay venue in the previous 6 months | No | 39.6 | 54.1 | 34.2 | .000 | 26.7 | .000 |
Yes | 60.4 | 45.9 | 65.8 | 73.3 | |||
Tested for HIV within the past year | No | 76.3 | 85.5 | 74.1 | .000 | 65.4 | .000 |
Yes | 23.7 | 14.5 | 25.9 | 34.6 | |||
HIV/STI knowledge score | 0–4 | 53.7 | 61.8 | 51.6 | .000 | 44.2 | .000 |
Full score | 46.3 | 38.2 | 48.4 | 55.8 |
Lifetime reported single substance user (n = 945) | Lifetime reported multiple sbstance user (n = 405) | ||||||
---|---|---|---|---|---|---|---|
AOR | 95% C.I. |
P-value | AOR | 95% C.I. |
P-value | ||
Age group | 14–19 | 1 | 1 | ||||
20–29 | 1.60 | 1.07–2.40 | .023 | 1.53 | 0.85–2.77 | .160 | |
30–39 | 2.12 | 1.38–3.25 | .001 | 2.62 | 1.41–4.86 | .002 | |
40+ | 1.02 | 0.62–1.67 | .944 | 1.16 | 0.57–2.38 | .679 | |
Education level | No University degree | 1 | 1 | ||||
University degree | 0.74 | 0.56–0.94 | .012 | 0.66 | 0.48–0.89 | .007 | |
Sexual orientation | Gay | 1 | 1 | ||||
Bisexual | 0.81 | 0.62–1.06 | .120 | 1.00 | 0.68–1.46 | .985 | |
Other | 0.62 | 0.42–0.92 | .016 | 1.19 | 0.72–1.98 | .502 | |
Currently have a casual sex partner | No | 1 | 1 | ||||
Yes | 1.24 | 0.96–1.60 | .104 | 2.57 | 1.84–3.59 | .000 | |
Depression | No | 1 | 1 | ||||
Yes | 1.12 | 0.84–1.50 | .447 | 2.27 | 1.58–3.27 | .000 | |
HIV status | Negative | 1 | 1 | ||||
Positive | 2.91 | 0.92–9.21 | .070 | 7.78 | 2.33–25.93 | .001 | |
UAI in the previous 6 months | No anal intercourse | 1 | 1 | ||||
Protected | 1.57 | 0.95–2.58 | .078 | 1.20 | 0.56–2.56 | .634 | |
Unprotected | 2.53 | 1.53–4.17 | .000 | 2.42 | 1.14–5.16 | .022 | |
Number of sex partners in the previous 6 months | 0 | 1 | 1 | ||||
1 | 0.82 | 0.54–1.25 | .360 | 1.08 | 0.59–1.98 | .804 | |
2–3 | 1.04 | 0.68–1.58 | .864 | 1.06 | 0.59–1.92 | .838 | |
4–5 | 1.44 | 0.90–2.29 | .127 | 1.22 | 0.65–2.30 | .543 | |
6+ | 1.67 | 1.05–2.67 | .031 | 2.13 | 1.15–3.95 | .016 | |
Sex club in the previous 6 months | No | 1.00 | 1 | ||||
Yes | 1.64 | 1.29–2.09 | .000 | 2.00 | 1.44–2.80 | .000 | |
Gay venue in the previous 6 months | No | 1.00 | 1 | ||||
Yes | 1.65 | 1.32–2.01 | .000 | 2.56 | 1.78–3.39 | .000 | |
Tested for HIV within the past year | No | 1 | 1 | ||||
Yes | 1.42 | 1.08–1.88 | .013 | 1.78 | 1.25–2.54 | .001 | |
HIV/STI knowledge score | 0–4 | 1 | 1 | ||||
5(full score) | 1.22 | 0.98–1.52 | .081 | 1.59 | 1.18–2.16 | .003 |