Table 1.

Characteristics of the initial sample at age 6 and the 17 year follow-up sample

	Initial sample	Age 17	Total Attrition*	Sample used in Regression
	(n=823)	(n=713)	(n=130)	(n=693)
Urban	49.8 %	48.9 %	45.00 %	50.7 %
Low birth weight	57.5 %	56.8 %	61.76 %	56.7 %
Education of Mother
<High school	16.9 %	15.6 %	24.36 %	15.5 %
High school	27.4 %	26.8 %	30.07 %	26.9 %
Some College	37.3 %	38.0 %	33.57%	38.0 %
College	18.3 %	19.6 %	11.37 %	19.6 %
Single mother	32.9 %	31.7 %	38.23 %	31.9 %
Male	48.6 %	47.1 %	55.53 %	47.3 %
Black	42.9 %	44.3 %	36.50 %	44.1 %

^*Includes all respondents in the original sample who were not included in the analysis sample due to loss to follow-up or missing data on study variables.