. Author manuscript; available in PMC: 2011 Nov 5.

Published in final edited form as: Arch Pediatr Adolesc Med. 2010 Jun;164(6):567–571. doi: 10.1001/archpediatrics.2010.85

Table 1.

Multilevel Modeling Coefficients of Change in Salivary Cortisol Across Child Care and Non–Child Care Days^a

Effect	Change in Salivary Cortisol		P Value
Effect	Coefficient (SE)	t₄₁	P Value
Home intercept, β_h00	−0.472 (0.071)	−6.69	<.001
Child care intercept, β_c00	−0.483 (0.058)	−8.27	<.001
Home linear slope, β_h10	−0.166 (0.039)	−4.24	<.001
Child care linear slope, β_c10	−0.250 (0.037)	−6.81	<.001
Home quadratic slope, β_h20	0.023 (0.007)	3.32	.002
Child care quadratic slope, β_c20	−0.048 (0.006)	7.41	<.001
Home cubic slope, β_h30	−0.001 (0.000)	−3.34	.001
Child care cubic slope, β_c30	−0.003 (0.000)	−8.25	<.001

Abbreviation: SE, standard error.

Overall home vs child care trajectories differed significantly ( $χ_{4}^{2} = 18.21$ , P=.001).