Regression 2: Controlled for age, insurance type, and year 1 BLL

Coefficients a
Model		Unstandardized Coefficients		Standardized Coefficients	t	p value
		B	Std. Error	Beta
1	(Constant)	0.553	0.148		3.730	0.000
	Group	−0.009	0.037	−0.012	−0.239	0.812
	Age at 2 year BLL	−0.057	0.054	−0.053	−1.062	0.289
	Year 1 BLL (log base 10)	0.420	0.044	0.456	9.459	0.000
	Insurance	−0.051	0.030	−0.081	−1.678	0.094

^a Dependent Variable: Logarithm (Base 10) of year 2 BLL; Key: Group is coded: 1 = LSH, 2 = control; Age is in years, with 2 decimals places; Insurance is 1 = Medicaid insurance 2 = private health insurance; Regression equation: Log (Y-2 BLL) = −0.012*group −0.053*age + 0.456*Y-1 BLL − 0.081*insurance. All standardized weights.