Table 3.
Adjusted association of most likely class membership with demographics, sex behaviors, and drug use behaviors among PWID in Tijuana (n = 1,025)
Model 1 | Model 2: Adjusting for Homophily | |||||||
---|---|---|---|---|---|---|---|---|
| ||||||||
Methamphetamine + Heroin Use vs. Predominately Heroin Use | Methamphetamine + Cocaine + Heroin Use vs. Predominately Heroin Use | Methamphetamine + Heroin Use vs. Predominately Heroin Use | Methamphetamine + Cocaine + Heroin Use vs. Predominately Heroin Use | |||||
| ||||||||
AOR | 95% CI | AOR | 95% CI | AOR | 95% CI | AOR | 95% CI | |
Age | 0.97 | 0.94–0.99 | 1.02 | 0.98–1.07 | 0.97 | 0.95–0.98 | 1.01 | 0.97–1.05 |
Female | 1.89 | 1.24–2.99 | 1.30 | 0.52–2.94 | 1.81 | 1.31–2.49 | 1.25 | 0.75–2.08 |
Income ≥ 3500 pesos/month | 0.62 | 0.48–0.83 | 0.70 | 0.41–1.30 | 0.65 | 0.47–0.89 | 0.75 | 0.51–1.08 |
Sex exchange | 0.80 | 0.48–1.30 | 2.64 | 1.09–5.44 | 0.86 | 0.52–1.42 | 2.87 | 1.75–4.73 |
2+ casual sex partners | 0.59 | 0.27–1.37 | 12.96 | 1.78–36.45 | 0.63 | 0.35–1.16 | 12.54 | 3.48–45.23 |
Drug use before sex | 2.25 | 1.03–4.55 | 0.24 | 0.09–2.02 | 2.26 | 1.56–3.27 | 0.28 | 0.07–1.08 |
Daily+ heroin injection | 0.85 | 0.52–1.43 | 0.39 | 0.18–0.95 | 0.86 | 0.56–1.31 | 0.41 | 0.21–0.81 |
Years injecting | 1.00 | 0.97–1.02 | 1.01 | 0.96–1.04 | 0.99 | 0.98–1.01 | 1.01 | 0.97–1.05 |
Overdose | 1.59 | 0.89–2.78 | 3.33 | 1.52–8.36 | 1.7 | 0.92–3.13 | 3.55 | 1.32–9.55 |
Receptive sharing | 2.67 | 1.98–3.51 | 2.36 | 1.31–4.44 | 2.63 | 2.17–3.18 | 2.46 | 1.30–4.65 |
Recruiter class 2 (dummy) | -- | -- | -- | -- | 0.34 | 0.23–0.62 | 0.29 | 0.16–0.53 |
Recruiter class 3 (dummy) | -- | -- | -- | -- | 0.38 | 0.18–0.66 | 0.18 | 0.08–0.38 |
PWID: People Who Inject Drugs