Table 5.

Factors associated with unhealthy alcohol and drug use among men who have sex with men (MSM) initiating pre-exposure prophylaxis (PrEP)

	Adjusted odds ratio	95% CI	p-value
Unhealthy alcohol use
Total number of sex partners, past 3 months (per sex partner)	1.04	0.99–1.09	0.098
Any illicit substance use (yes vs. no)	2.57	1.32–5.01	0.006
Sex with a known HIV+ partner, past 3 months (yes vs. no)	0.30	0.13–0.60	0.005
Drug use
Sexual risk category (man who has sex with both women and men vs. sex with men only)	4.16	0.85–20.43	0.080
Unhealthy alcohol use (yes vs. no)	2.30	1.23–4.32	0.010
Frequent drug use
Age (ref: 35–44 years)
< 25 years	4.27	1.51–12.09	0.017
25–34 years	2.32	0.95–5.69	0.560
> 45 years	1.74	0.62–4.92	0.610
Unhealthy alcohol use (yes vs. no)	1.58	0.83–3.01	0.162