Table 3:

Baseline Differences, ABC/CARE

Variable	Female Mean	Male Differential	p-value	Control Mean	Treatment Differential	p-value
Mother’s age	19.72	1.13	0.15	20.52	−0.51	0.51
Mother works	0.23	0.09	0.28	0.21	0.11	0.18
Mother’s IQ	84.46	1.33	0.46	84.65	0.98	0.58
Father at home	0.24	0.04	0.56	0.29	−0.05	0.51
Number of siblings	0.59	0.07	0.67	0.71	−0.18	0.29
HRI score	21.57	−1.78	0.06	21.39	−1.47	0.13
Apgar score, 1 min.	7.68	−0.07	0.80	7.60	0.09	0.76
Apgar score, 5 min.	8.94	−0.20	0.33	8.87	−0.04	0.83
Birthweight	7.18	−0.20	0.34	7.17	−0.19	0.38
Gestational age	39.85	−0.42	0.27	39.87	−0.50	0.19

Note: The variables in this table are all measured at baseline, close to when the children were born. Maternal labor supply (“Mother works”) is represented using an indicator variable. A larger HRI (High Risk Index) score indicates more disadvantage. Apgar, measured at 1 and 5 minutes after birth, is a test of the health condition of newborn babies. A score closer to 10 indicates a healthier condition (Apgar, 1966). Birthweight is in pounds and gestational age is in weeks. Control means and treatment differentials pool males and females.