Table 7. Receiver-operating characteristic analyses of three scoring systems for predicting metastatic potential in pheochromocytoma and paraganglioma.

Variable	AUC	95% CI	Improvement vs. GAPP score	P value	Improvement vs. PASS	P value
GAPP score	0.728	0.610–0.826	Ref	Ref
PASS	0.753	0.637–0.847	0.025	0.757	Ref	Ref
M-GAPP score	0.822	0.714–0.902	0.094	0.012	0.069	0.411

AUC, area under curve from receiver-operating characteristic analysis; CI, confidence interval; GAPP, Grading system for Adrenal Pheochromocytoma and Paraganglioma; M-GAPP, modified GAPP; PASS, Pheochromocytoma of the Adrenal Scaled Score.

Significant results (P < 0.05) are in bold.