Table 4.

Logistic regression analyses of alcohol and other drug use (AOD) latent classes on sex behavior outcomes.

	Unprotected Sex-MSP				Impaired Last Sex				Unprotected Last Sex
	Latent Class Only		Class & Covariates		Latent Class Only		Latent Class Only		Latent Class Only		Class & Covariates
	OR (95% CI)	Sig	AOR (95% CI)	Sig	OR (95% CI)	Sig	AOR (95% CI)	Sig	OR (95% CI)	Sig	AOR (95% CI)	Sig
Latent Classes		<0.0001		0.07		<0.0001		0.02		<0.0001		0.25
Marijuana and Alcohol vs. Polydrug Use (ref)	0.38 (0.25–0.57)	<0.0001	0.58 (0.36–0.94)	0.03	0.41 (0.29–0.58)	<0.0001	0.76 (0.49–1.17)	0.22	0.41 (0.29–0.60)	<0.0001	0.68 (0.44–1.07)	0.1
High AOD Risk vs. Polydrug Use (ref)	0.95 (0.59–1.55)	0.84	0.69 (0.41–1.15)	0.15	1.70 (1.15–2.51)	0.008	1.52 (1.01–2.29)	0.05	1.16 (0.75–1.80)	0.52	0.90 (0.56–1.43)	0.65
High AOD Risk vs. Marijuana and Alcohol (ref)	2.51 (1.59–3.95)	<0.0001	1.19 (0.68–2.07)	0.55	4.17 (2.78–6.25)	<0.0001	1.99 (1.21–3.28)	0.006	2.79 (1.82–4.28)	<0.0001	1.31 (0.78–2.22)	0.31
Age		-		0.14		-		0.08		-		0.05
18–24 vs. 25+	-		0.73 (0.48–1.11)		-		0.73 (0.52–1.04)		-		0.68 (0.46–0.99)
Ethnicity		-		0.005		-		<0.0001		-		0.001
Black African vs. Coloured (ref)	-		0.49 (0.30–0.81)		-		0.33 (0.21–0.50)		-		0.46 (0.29–0.72)
Education		-		0.61		-		0.64		-		0.56
Less than 11th vs 12th+	-		1.16 (0.66–2.06)		-		1.14 (0.67–1.94)		-		1.18 (0.68–2.02)
HIV Status		-		0.001		-		0.1		-		0.01
HIV− vs. HIV+ (ref)	-		2.09 (1.34–3.27)		-		0.69 (0.45–1.07)		-		1.74 (1.13–2.66)
Unemployment		-		0.28		-		0.54		-		0.91
Employed vs Unemployed	-		0.72 (0.39–1.32)		-		0.84 (0.48–1.47)		-		0.97 (0.55–1.72)

Note: OR: Odds Ratio; CI: Confidence Interval