Table 3.

Adjusted odds ratio of past month substance use in second and third trimesters among women reporting past year substance use

	First Trimester	Second Trimester		Third Trimester
		AOR	95% CI	AOR	95% CI
Licit Drugs	REF	0.29	0.21-0.40***	0.20	0.14-0.30***
Tobacco	REF	0.47	0.34-0.65***	0.41	0.30-0.58***
Alcohol	REF	0.27	0.21-0.35***	0.18	0.13-0.26***
Illicit Drugs	REF	0.40	0.30-0.53***	0.228	0.21-0.38***
Marijuana	REF	0.43	0.31-0.60***	0.41	0.28-0.60***
Cocaine	REF	0.10	0.01-0.98	0.02	0.00-0.18**
Heroin	REF	NS		NS
RX pain medication	REF	0.94	0.43-2.06	0.42	0.18-0.97*
Hallucinogens	REF	0.25	0.02-2.72	0.18	0.01-5.52
Tranquilizers	REF	0.45	0.14-1.40	0.14	0.03-0.67*
Inhalants	REF	NS		NS
Stimulants	REF	0.31	0.05-1.95	0.23	0.03-1.61
Sedatives	REF	NS		NS
Polysubstance use
1+ drugs	REF	0.44	0.29-0.69***	0.46	0.27-0.77**
2+ drugs	REF	0.24	0.15-0.37***	0.17	0.09-0.31***
3+ drugs	REF	0.21	0.10-0.42***	0.09	0.03-0.27***

Note. AORs are adjusted for year of data collection, age, race, employment status, income, marital status, and educational history. AOR= Adjusted odds ratios. CI= Confidence intervals. NS= Sample size not sufficient.

^*p<0.05.

^**p<0.01.

^***p<0.001.