Table 5.

Differences in substance use between classes.

	Nicotine Use		Alcohol Use		Marijuana Use		Illicit Substance Use
	IRR	95%CI	IRR	95%CI	IRR	95%CI	IRR	95%CI
Poverty	0.88	[0.54, 1.45]	1.06	[0.56, 2.01]	0.59	[0.34, 1.01]	0.93	[0.28, 3.13]
Female	0.73	[0.47, 1.14]	0.55*	[0.32, 0.92]	0.49*	[0.32, 0.74]	0.12*	[0.04, 0.32]
Race/Ethnicity
Black1	0.42*	[0.27, 0.66]	0.32*	[0.17, 0.60]	0.94	[0.52, 1.69]	0.04*	[0.02, 0.11]
Latinx1	0.54	[0.23, 1.26]	0.82	[0.39, 1.71]	1.60	[0.63, 4.08]	0.35	[0.04, 3.10]
Other1	0.80	[0.46, 1.40]	0.76	[0.37, 1.57]	1.40	[0.69, 2.83]	0.18*	[0.04, 0.88]
Classes
Neglect2	1.13	[0.59, 2.17]	0.61	[0.27, 1.40]	1.41	[0.73, 2.71]	0.81	[0.12, 5.32]
Abuse2	1.82	[0.86, 3.86]	1.20	[0.47, 3.08]	1.85	[0.97, 3.53]	7.91*	[1.06, 58.79]
Multi-type CAN2	1.88*	[1.10, 3.19]	0.80	[0.40, 1.59]	1.35	[0.79, 2.29]	7.31*	[1.21, 44.08]
Abuse3	1.62	[0.74, 3.55]	1.96	[0.73, 5.26]	1.31	[0.62, 2.77]	9.78*	[1.59, 60.16]
Multi-type CAN3	1.66	[0.93, 2.96]	1.30	[0.63, 2.70]	0.95	[0.49, 1.87]	9.04*	[2.16. 37.86]
Multi-type CAN4	1.03	[0.52, 2.04]	0.66	[0.27, 1.64]	0.73	[0.38, 1.38]	0.92	[0.19, 4.41]

Note: CI = confidence interval; IRR = Incident Rate Ratio

^*p < .05

¹White reference group

²Low-Risk reference group

³Neglect reference group

⁴Abuse reference group