Table 1.

Regression coefficients testing the interaction of OXTR and face processing on smoking during pregnancy^a (n = 143)

	B	SE	β	t	p
Face processing accuracyb	-.003	.068	-.003	-.049	.961
OXTR allele combinationc	.180	.188	.063	.955	.341
Face processing x OXTR allele combination	-.408	.166	-.181	-2.461	.015
Smoking historyd	.669	.064	.670	10.441	<.001
Prenatal alcohol usee	.146	.199	.045	.733	.465
Prenatal drug usef	.116	.273	.028	.424	.672
Impulsivityg	-.062	.065	-.062	-.954	.342
Depressionh	.113	.164	.043	.689	.492
Graduated high school	.100	.153	.042	.653	.515
Family incomei	-.024	.068	-.024	-.350	.727

^aGroup-corrected mean serum cotinine during

^bAccuracy in detecting child and adult sad, fear, and angry faces, Diagnostic Analysis of Nonverbal Accuracy-2

^cOXTR rs53576(GG) and rs2254298(A)

^dCigarettes /day prior to recognition of pregnancy

^e≥ 2 drinks/sitting at any time during pregnancy

^fAny illicit drug use during pregnancy

^gZuckerman-Kuhlman Personality Questionnaire, Impulsivity Subscale

^hPast year major depressive disorder

ⁱ1 = Less than $5,000; 2 = $5,000 - $7500; 3 = $7501 – $10,000; 4 = $10,001 – 15,000; 5= $15,001 – $20,000; 6 = $20,001 - $30,000; 7 = $30,001 - $40,000; 8 = $40,001 - $50,000; 9 = $50,000 - $75,000; 10 = $75,001 - $100,000; 11 = $100,001 - $200,000; 12 = Over $200,000