Table 3.

Performance comparison of different methods for identifying ccRCC.

Identification method		Sample number	Sens (%)	Spec (%)	AUC	ACC
This work		306	94.56	90.97	0.9372	97.28
Gene expression profiling (8)		295	98.10	NA	NA	95.70
Serum lncRNA signature (11)		51	79.20	88.90	0.9000	84.10
Serum histidine and plasma tryptophan (12)		242	84.70	85.50	0.9160	85.12
Multiphasic multidetector CT (7)	Discrimination of ccRCC from
	oncocytoma	108	86.00	43.00	NA	77.00
	papillary RCC	119	94.00	62.00	NA	85.00
	chromophobe RCC	97	92.00	25.00	NA	84.00