TABLE 2.

Rate (per 100) of substance use during (A) past week, (B) past month, and (C) past year among offspring with and without childhood abuse

(N = 1748)	Adults without child abuse (n = 1478)	Adults with child abuse (n = 270)
(A) Substance use in past week	% (N)	% (N)	OR (95% CI)	p	AORa (95% CI)	p
Marijuana use	3.9 (58)	10.7 (29)	2.9 (1.8–4.7)	<.00001	2.5 (1.5–4.3)	.0004
Cocaine use	1.4 (22)	4.4 (12)	3.1 (1.5–6.3)	.001	3.0 (1.3–6.8)	.008
Heroine use	1.3 (19)	2.6 (7)	2.0 (0.9–4.9)	.10	2.0 (0.7–5.4)	.20
Methadone use	0.2 (3)	0	–	–
Opiate use	0	0.1 (1)	–	–
(B) Substance use in past month	% (N)	% (N)	OR (95% CI)	p	AORa (95% CI)	p
Marijuana use	6.2 (92)	14.4 (39)	2.5 (1.7–3.8)	<.00001	2.5 (1.7–3.9)	<.00001
Cocaine use	3.1 (46)	7.7 (21)	2.6 (1.5–4.3)	<.00001	3.1 (1.8–5.4)	.0004
Heroine use	2.2 (32)	4.8 (13)	2.3 (1.2–4.4)	.01	2.9 (1.5–5.6)	.002
Methadone use	0.3 (3)	0.4 (1)	1.8 (0.2–17.6)	.60	–
Opiate use	0.001 (1)	0.4 (1)	5.5 (0.3–88.0)	.29	4.7 (0.3–78.2)	.28
(C) Substance use in past year	% (N)	% (N)	OR (95% CI)	p	AORa (95% CI)	p
Marijuana use	12.7 (188)	24.7 (67)	2.2 (1.7–3.1)	<.00001	2.2 (1.6–3.1)	<.00001
Cocaine use	5.7 (85)	13.3 (36)	2.5 (1.4–3.8)	<.00001	2.7 (1.8–4.1)	<.00001
Heroine use	5.5 (81)	11.8 (32)	2.3 (1.5–3.6)	<.00001	2.8 (1.8–4.3)	<.00001
Methadone use	0.5 (7)	1.1 (3)	2.4 (0.6–9.2)	.20	2.5 (0.6–9.9)	.18
Opiate use	0.7 (10)	2.6 (7)	3.9 (1.5–10.4)	.003	3.5 (1.3–9.4)	.008

OR = odds ratio; CI = confidence interval; AOR = adjusted odds ratio.

N may vary slightly due to missing value.

^aAge, race, sex, and poverty level at birth and at age 7, maternal lifetime history of mental health, maternal education level, number of siblings, and childhood behavioral problems (activity level, low attention span, impulsivity, and low frustration tolerance) were adjusted. Holms correction for multiple testing has been used and the p-value for significance is set for .008.