Table 3.

Partial R2 Values Derived from Mixed Effects Model: Factors Associated with the Receipt of Definitive Therapy Among Men ≥66 Years of Age with Low-risk PCa and Limited Life Expectancy (n=24,077) Across 1,165 Facilities (National Cancer Data Base, 2004–2013)

Variable	P-value	Partial R2
Overall Model	<0.001	0.7203
Patient-level Variables	<0.001	0.5629
Life Expectancy Group	<0.001	0.4425
Race	0.0240	0.0080
Clinical T Stage	<0.001	0.0387
PSA	0.1221	0.0020
Year of Diagnosis	<0.001	0.3948
Distance from treating facility	0.0012	0.0114
Insurance Type	<0.001	0.0262
Income	0.2402	0.0047
Education	0.1092	0.0063
Facility-level Variables	<0.001	0.0965
Region	0.9624	0.0002
Facility Type	<0.001	0.0637
Facility Location	<0.001	0.0323
Facility Case Volume	0.9557	0.0003