Table 8.

Effect of Patient, Provider, and Organizational Variables on CPPI Score

Variables/category	Estimate	P-value	CPPI Change a exp(estimate)
Patient variables
Age
Overall		<0.0001
<=74	0.2377	<0.0001	1.2683
75–84	0.0884	0.1157	1.0924
>=85	reference	reference	reference
Race
Overall		0.0008
Black	0.1294	0.0184	1.1381
Otherb	−0.2478	0.3690	0.7805
Unknown	0.1236	0.0036	1.1316
White	reference	reference	reference
Hospice variables
Size
Overall		<0.0001
Small	0.0351	0. 7258	1.0357
Medium	−0.3384	<0.0001	0.7129
Large	reference	reference	reference
Organizational Structure
Overall		<0.0001
Independent Org	−0.1807	<0.0001	0.8347
Part of System	reference	reference	reference
Nurse variables
Nurse Certification
Overall		0.0114
%Certification >= 0.2	0.1014	0.0114	1.1067
%Certification < 0.2	reference	reference	reference
Case Load
Overall		<0.0001
> 10	0.2756	<0.0001	1.3173
<= 10	reference	reference	reference

Note: Results for the final GEE/GLM produced from the backward elimination procedure;

^aMultiplicative change in the mean CPPI relative to the reference group.

^bIncludes patients of Asian, Hispanic and American Indian descent.