Table 2.

Prenatal Exposures by Adolescent Conduct Disorder Diagnosis at Age 16

		Adolescent Conduct Disorder Diagnosis
		No		Yes
Alcohol
First trimester ADV		N	%	N	%
None		185	36.6	22	32.8	p=0.002a
> 0 - ≤ 0.40		162	32.1	13	19.4
>0.4 - ≤ 0.89		78	15.4	8	11.9
> 0.89		80	15.8	24	35.8
Third Trimester ADV
None		351	69.5	42	62.7	p=0.55
> 0 - ≤ 0.40		120	23.8	20	29.9
>0.4 - ≤ 0.89		15	3.0	3	4.5
> 0.89		19	3.8	2	3.0
Cigarette Smoking
First Trimester
None to < ½ pack per day		346	68.5	39	58.2	p=0.09
≥ ½ per day		159	31.5	28	41.8
Third Trimester
None to < ½ pack per day		328	65.0	40	59.7	p=0.40
≥ ½ per day		177	31.5	27	40.3
Marijuana
First Trimester
None		307	59.4	38	65.7	p=0.80
Light >0 – 0.4 joints/day		92	19.6	13	19.4
Heavy > .4 joints/day		106	21.0	16	23.9
Third Trimester
None		408	80.2	54	80.6	p=0.24
Light >0 – 0.4 joints/day		52	10.3	10	19.4
Heavy > .4 joints/day		48	9.5	3	23.9
Cocaine
First Trimester
No use		488	96.6	66	98.5	p=0.24
Use		17	3.4	1	3.01
Other Illicit Drugs.
First Trimester						p=0.82
No use		463	91.7	61	91.0
Use		42	8.3	6	8.4

Note: ADV = Alcohol Daily Volume

^aDetermined using Chi-square and Fisher’s exact test.