. Author manuscript; available in PMC: 2012 Jul 5.

Published in final edited form as: J Pediatr Nurs. 2007 Aug;22(4):297–309. doi: 10.1016/j.pedn.2007.02.001

Table 4.

Hierarchical Regression Model for Preschool Functional Performance

Step	R	R²	R² (adjusted)	R² change	F change	F
1. Birth weight, neonatal illness severity	.339	.115	.103	9.86	9.86	9.8^*
2. SES	.381	.145	.128	5.28	5.28	8.5^*
3. Preschool health status, general motor, visual motor integration	.664	.441	.418	26.13	26.13	19.4^*

Note: Model: functional performance = X + birth weight (.018) + neonatal illness severity (−.065) + SES (.088) + preschool health (−.055) + general motor (.342) + visual motor (.35) + error.

p = .0001.