Table 5.

Estimated effect of barbecued meat consumed over the third trimester of pregnancy on head circumference adjusted for airborne PAHs and other potential confounders (N = 432, R-squared = 0.25)

Predictors	Coef.	t	P>t	[95% Conf. Interval]
Maternal age	0.01	0.24	0.814	−0.04	0.04
Maternal education (in years)	0.05	2.08	0.039	0.01	0.10
Gestational age (weeks)	0.25	4.79	0.000	0.15	0.36
Maternal weight gain in pregnancy (kg)	0.06	4.71	0.000	0.03	0.08
Prepregnancy maternal weight (kg)	0.04	5.35	0.000	0.02	0.05
Child’s sex (girls)	−0.73	−6.12	0.000	−0.97	−0.50
Parity	0.32	3.01	0.003	0.11	0.53
Cord cotinine (lg)	−0.14	−1.59	0.113	−0.31	0.03
Airborne PAH exposure*	−0.32	−2.63	0.009	−0.55	−0.08
Consumption of barbecued meat **	−0.36	−1.87	0.062	−0.74	0.02

^*dichotomized by median value of the distribution (24.9 ng/m³)

^**/ 0 = no consumption of the barbecued meat, 1 = reported consumption of the barbecued meat in the last trimester of pregnancy