Table 1.

Weighted distribution of individual and contextual covariates, by maternal age Early Childhood Longitudinal Study-Birth Cohort (ECLS-B)

	Age 15–25 (N=3400)	Age 26–35 (N=4400)	Age 36+ (N=1300)	p-value
White	49.4%	64.1%	70.1%	<0.001
Black	20.3%	10.5%	9.8%	<0.001
Hispanic	25.4%	18.8%	14.7%	<0.001
Asian-American or other	4.9%	6.6%	5.3%	<0.001
Married or living together	65.3%	90.2%	92.6%	<0.001
Less than a high school diploma	33.0%	9.8%	6.3%	<0.001
High school gradute	38.9%	23.3%	17.3%	<0.001
Some college	24.2%	32.5%	26.7%	<0.001
Having a college degree or above	3.9%	34.4%	49.7%	<0.001
Not employed	52.9%	43.8%	43.1%	<0.001
Part-time employment	18.3%	21.6%	22.0%	<0.001
Full-time employment	28.8%	34.6%	34.9%	<0.001
Moderately/severely depressed	22.4%	13.6%	12.7%	<0.001
Houshold income <100% poverty line	38.2%	14.9%	10.7%	<0.001
Household income 100–130% poverty line	17.2%	8.8%	6.0%	<0.001
Household income 130–185% poverty line	15.9%	10.9%	8.1%	<0.001
Household income above 185% poverty line	28.8%	65.4%	75.3%	<0.001
Ever breast fed child	59.0%	74.0%	78.4%	<0.001
Drink alcohol before pregnancy	31.3%	42.0%	49.9%	<0.001
Other smokers in household	37.4%	19.2%	18.2%	<0.001
% below poverty in neighborhood	50.3%	50.0%	50.0%	<0.001
% high school or less in neighborhood	50.0%	49.9%	50.2%	<0.001
% moved within past year in neighborhood	50.0%	50.0%	50.0%	<0.001
% female headed households in neighborhood	49.8%	50.0%	49.9%	<0.001
% unemployed in neighborhood	50.0%	50.0%	50.2%	<0.001