Table 2.

Odds ratios from univariate logistic regression models for average tumor size, using a threshold of >3 cm versus <=3 cm, by modality based on the prospective reads, along with the estimated diagnostic probabilities and ROC AUC for detection of histologic lymph node involvement

Response	Modality	Odds ratio (95% CI)	NPV	PPV	Sensitivity	Specificity	AUC (SE)
Histologic lymph node involvement specific to common iliac (with or without paraaortic nodes	MRI	4.1 (1.5, 11.5)	0.93	0.22	0.61	0.72	0.70 (0.06)
	CT	2.7 (1.1, 7.0)	0.91	0.22	0.57	0.67	0.63 (0.07)
	Clinical	7.4 (2.5, 21.6)	0.95	0.27	0.75	0.71	0.73 (0.06)
	Pathologic	1.4 (0.3, 7.4)	0.93	0.09	0.22	0.83	0.64 (0.08)
General histologic lymph node involvement (Any positive node)	MRI	4.6 (2.2, 9.5)	0.78	0.57	0.54	0.80	0.68 (0.04)
	CT	2.3 (1.2, 4.7)	0.72	0.48	0.49	0.71	0.63 (0.05)
	Clinical	4.0 (2.0, 8.0)	0.77	0.55	0.56	0.76	0.64 (0.05)
	Pathologic	3.0 (1.2, 7.6)	0.75	0.50	0.29	0.88	0.62 (0.05)