Table 2.

Logistic Regression Predicting Trial Enrollment (n=553688, c=0.770)

Factor	Adjusted OR*	95% CI	p-value
Age
18–64 vs 65+	2.125	1.896–2.382	<0.001
Gender
Female vs Male	0.849	0.738–0.977	0.022
Marital Status
Married vs Single	1.184	1.033–1.357	0.015
Divorced/Separated/Widowed vs Single	1.078	0.917–1.266	0.363
Unknown vs Single	0.110	0.052–0.235	<0.001
Race
Non-Hispanic Blacks vs Non-Hispanic White	0.735	0.583–0.926	0.009
Hispanic vs Non-Hispanic White	0.778	0.671–0.901	<0.001
Asian/Pacific Islander vs Non-Hispanic White	0.763	0.643–0.907	0.002
American Indian vs Non-Hispanic White	0.849	0.351–2.052	0.716
Unknown vs Non-Hispanic White	0.121	0.030–0.487	0.003
Payer
Underinsured vs Private	1.037	0.933–1.152	0.504
Military vs Private	0.578	0.299–1.118	0.103
Uninsured vs Private	0.948	0.933–1.152	0.779
Grade
High vs Low Grade	0.885	0.789–0.993	0.037
Unassessed vs Low Grade	0.519	0.435–0.619	<0.001
CoC Hospital
CoC Approved vs Not Approved	3.147	2.851–3.473	<0.001
Unknown vs Not Approved	0.722	0.385–1.351	0.308
Stage
I vs IV	0.612	0.508–0.737	<0.001
II vs IV	1.073	0.887–1.297	0.468
III vs IV	1.351	1.116–1.636	0.002
Unknown vs IV	0.685	0.550–0.852	<0.001
Residence
Rural vs Urban	0.864	0.752–0.992	0.039
Organ Site
HPB vs Colon	1.903	1.460–2.482	<0.001
Breast vs Colon	3.144	2.620–3.773	<0.001
Lung vs Colon	1.011	0.809–1.262	0.924
Melanoma vs Colon	6.539	5.089–8.402	<0.001
Stomach/Esophagus vs Colon	1.040	0.739–1.480	0.829