Table 2.

Descriptive statistics for control, predictor, moderator, and outcome variables in analytical sample (imputed data; N=2,860)

	IMPUTED DATA
Variable	%	M	SE	n	Total
	Demographic / control variables
Child is female	48.18			1,378	2,860
M race/ethnicity
Black	48.40			1,384	2,860
White	21.09			603	2,860
Hispanic	27.42			784	2,860
Other	3.09			89	2,860
M immigrant	14.32			410	2,860
M relationship with biological father at baby’s birth
Married	22.91			655	2,860
Cohabiting	37.18			1,063	2,860
Single	39.91			1,142	2,860
M risk childbearing age (<19 or ≥ 40)	10.88			311	2,860
M risk pre-care during pregnancy	19.34			553	2,860
M pre-eclampsia or eclampsia during pregnancy	4.86			139	2,860
M diabetes during pregnancy	4.81			138	2,860
M consideration of abortion during pregnancy	26.99			772	2,860
	Childhood family risk factors (at least one unfavorable risk)
M Socioeconomic risks (1–5)	91.75	2.95	0.023	2,624	2,860
M Mental health risks (1–5)	73.36	1.71	0.018	2,098	2,860
M Risky parenting practices (1–4)	72.41	1.48	0.015	2,071	2,860
M Risky health behavior (1–6)	83.74	2.08	0.023	2,395	2,860
Child-related risks (1–4)	41.22	1.30	0.018	1,179	2,860
Cumulative family risk (1–24)	98.88	7.35	0.061	2,828	2,860
0–1	3				2,860
2–4	16				2,860
5–7	32				2,860
8–10	30				2,860
11–13	15				2,860
14–16	4				2,860
	Child dopaminergic sensitizing genotype*
Number of dopaminergic sensitizing alleles (0–8)*
0–1	9.93			284	2,860
2	22.20			635	2,860
3	30.10			861	2,860
4	23.32			667	2,860
5	10.80			309	2,860
6–8	3.64			104	2,860
	Child problem behavior at age 9
Internalizing behavior (range 32–96)		37.08	0.106		2,860
Externalizing behavior (range 35–105)		41.29	0.130		2,860
Vandalism (range 0–4)		0.25	0.011		2,860
Substance use (range 0–3)		0.05	0.005		2,860
Any vandalism (1–4)	19.15	1.30	0.026	548	2,860
Any substance use (1–3)	4.65	1.10	0.030	133	2,860

Note. M = mother; M = mean value; SE=Standard Error.

^*= genetic data not imputed.