Table 2.

Adjusted models – associations between gang exposure index, ever given birth and positive drug screening tests, controlling for age, population group, and education

	Marijuana			Methaqualone			Methamphetamine
	AOR	95% CI	P-value	AOR	95% CI	P-value	AOR	95% CI	P-value
Gang exposure index	1.31	(1.18–1.46)	< .001	1.26	(1.07–1.47)	0.005	1.37	(1.21–1.55)	<.001
Given birth (ref = no)	0.63	(0.42–0.96)	0.030	1.57	(0.83–2.95)	0.162	1.34	(0.69–2.62)	0.388
Age	1.09	(0.90–1.32)	0.391	1.23	(0.89–1.71)	0.210	1.17	(0.86–1.61)	0.318
Coloured (ref = Black)	1.75	(1.09–2.81)	0.021	0.55	(0.29–1.06)	0.072	0.81	(0.40–1.65)	0.563
Grade 9 + completed (ref = no)	0.65	(0.43–0.97)	0.034	0.32	(0.16–0.65)	0.002	0.40	(0.25–0.64)	< .001

CI Confidence internal, AOR Adjusted odds ratio