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Table 3: Regression model of predictor factors and association with radiology versus nonradiology
Predictor Factor Exp(B) 95% CI for Exp(B) P Value
Funding (funded vs unfunded)^{^a} 0.662 0.372 1.178 .160
Degree (PhD vs MD) 0.826 0.351 1.947 .663
Field 
 Head and neck .019
 Brain 1.911 1.012 3.611 .046
 Spine 2.551 0.860 7.564 .091
 Neuro-IR 1.269 0.696 2.315 .437
 Pediatric 6.758 1.900 24.035 .003
Year 
 1998 .029
 2003 2.856 1.295 6.299 .009
 2008 2.271 1.065 4.843 .034
 2013 1.601 0.819 3.128 .169
 2018 2.414 1.232 4.732 .010
Note:—Exp(B) indicates exponential of the regression coefficient.
↵a Studies we are analyzing that were funded or non-funded.

Predictor Factor	Exp(B)	95% CI for Exp(B)		P Value
Funding (funded vs unfunded)^{^a}	0.662	0.372	1.178	.160
Degree (PhD vs MD)	0.826	0.351	1.947	.663
Field
Head and neck				.019
Brain	1.911	1.012	3.611	.046
Spine	2.551	0.860	7.564	.091
Neuro-IR	1.269	0.696	2.315	.437
Pediatric	6.758	1.900	24.035	.003
Year
1998				.029
2003	2.856	1.295	6.299	.009
2008	2.271	1.065	4.843	.034
2013	1.601	0.819	3.128	.169
2018	2.414	1.232	4.732	.010