Table 1.

The ENRICHD Data Analysis

Model	Parameter	Estimate	SE	95% CI	p-value
(5.1)	α0	23.380	1.107	(21.167, 25.594)	<0.0001
	α1	−0.619	0.479	(−1.577, 0.339)	0.199
	β0	−3.410	0.994	(−5.399, −1.422)	0.0013
	β1	−1.584	0.521	(−2.626, −0.542)	0.0039
(5.2)	γ00	25.670	1.431	(22.808, 28.533)	<0.0001
	γ01	−1.389	0.586	(−2.562, −0.216)	0.0180
	γ10	−0.278	0.822	(−1.922, 1.366)	0.736
	γ11	0.078	0.174	(−0.272, 0.426)	0.654
	β0	−4.302	1.041	(−6.385, −2.220)	0.0001
	β1	−2.062	0.773	(−3.608, −0.516)	0.0105

Parameter estimates and their standard errors (SE), 95% confidence intervals (CIs) and p-values were obtained by restricted maximum likelihood with unstructured correlations for models (5.1) and (5.2).