Table 1.

Descriptive Statistics - Background and Demographic Controls, Full Sample

	Treatment			Control
	N	Mean / % of Sample	Standard Deviation	N	Mean / % of Sample	Standard Deviation
Child Characteristics - Baseline (Fall 2002)
Age at Spring 2003 assessment in weeks	2292	236.02	31.38	1341	236.13	27.06
Age-3 cohort	2292	0.54		1341	0.55
Gender - Male	2292	0.49		1341	0.49
Race	2292			1341
Black		0.32			0.29
Hispanic		0.36			0.36
White & Other		0.33			0.35
Spanish as baseline testing language	2292	0.24		1341	0.23
Disability	2292	0.13		1341	0.11*
Family Characteristics - Baseline (Fall 2002)
Caregiver age	2292	29.37	8.06	1341	29.08	6.31
Maternal Education	2292			1341
Less than high school		0.36			0.39
High school diploma / GED		0.34			0.33
Beyond high school		0.31			0.28
Married Mother	2292	0.45		1341	0.46
Teenage Mother	2292	0.15		1341	0.15
Parents lived together	2292	0.50		1341	0.51
Immigrant mother	2292	0.19		1341	0.18
Home language Spanish	2292	0.28		1341	0.29
Maternal Depressiona	2292	0.44		1341	0.36*

Note. p level of treatment/control difference:

^*p < .05.

^**p < .01.

^***p < .001.

T-tests for differences in means were conducted for continuous variables, chi-square tests for categorical variables.

^a= Composited from CES-D Depression Scale. Weight used = CHSPR2003WTCA.