. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: J Head Trauma Rehabil. 2016 Mar-Apr;31(2):E39–E47. doi: 10.1097/HTR.0000000000000159

Table 3.

Hierarchical Regression Analyses

	Dichotomous Outcome				Continuous Outcome
	Δχ²	Nagelkerke R² for each step	Odds Ratio for final model	Standard Error for final model	ΔR²	Standardized β for each step	Standardized β for final model	VIF for final model
Model 1
GCS	6.80^**	.13	.87	.13	.16^**	−.40	−.21	1.21
TFC	6.91^**	.26	1.02	.03	.13^**	.40	.20	1.62
PTA	3.04^{^}	.31	1.03	.02	.09^**	.36	.36	1.47
Overall Model	χ² = 16.75^*, Nagelkerke R² = .31				Adjusted R²= .35
Model 2
GCS	6.80^**	.13	.87	.12	.16^**	−.40	−.22	1.14
TFC+PTA	9.95^**	.31	1.03	.01	.22^***	.50	.50	1.14
Overall Model	χ² = 16.74^***, Nagelkerke R²=.31				Adjusted R²= .36

^{^}

p<.10;

p<.05;

^**

p<.01;

^***

p<.001;

VIF=Variance Inflation Factor