Table 3.

Risk group stratified multivariable association of demographic and clinical characteristics with staging MRI

Risk group	Variable	Characteristic	OR (95% CI)	P value
Low	Age		0.89 (0.84-0.94)	<.001
	Race	Black vs white	0.21 (0.08-0.55)	.001
		Other vs white	0.22 (0.06-0.77)	.018
	Poverty	Yes vs no	0.64 (0.25-1.64)	.353
	Primary insurance	Nonprivate vs private	0.37 (0.16-0.86)	.020
	Distance (miles)	≥45 vs <45	1.28 (0.48-3.44)	.623
	Clinical T stage	T2 vs T1	0.51 (0.19-1.40)	.193
Intermediate	Age		0.94 (0.90-0.97)	<.001
	Race	Black vs white	0.71 (0.29-1.73)	.454
		Other vs white	5.57 (0.71-43.8)	.103
	Poverty	Yes vs no	0.98 (0.39-2.47)	.973
	Primary insurance	Nonprivate vs private	1.03 (0.55-1.93)	.930
	Distance (miles)	≥45 vs <45	1.26 (0.59, 2.71)	.551
	Clinical T stage	T2 vs T1	1.38 (0.66-2.85)	.390
High	Age		0.93 (0.88-0.98)	.013
	Race	Black vs white	0.99 (0.34-2.87)	.989
		Other vs white	NE	NE
	Poverty	Yes vs no	0.92 (0.30-2.79)	.879
	Primary insurance	Nonprivate vs private	0.79 (0.31-2.01)	.623
	Distance (miles)	≥45 vs <45	1.03 (0.31-3.42)	.967
	Clinical T stage	T2 vs T1	0.52 (0.20-1.34)	.176
		T3 vs T1	3.75 (1.25-11.3)	.019

CI, confidence interval; MRI, magnetic resonance imaging; NE, not estimable due to small number of patients; OR, odds ratio.