Table 4.

The results of Rad-score and Nomo-score in the training and validation set

	Training set			Validation set
	RO	chRCC	P1	RO	chRCC	P2
Rad-score	0.101 ± 0.129	−1.221 ± 0.074	<0.001	−0.036 ± 0.093	−1.045 ± 0.082	<0.001
Nomo-score	3.953 ± 0.785	−5.162 ± 0.458	<0.001	3.547 ± 0.584	−4.484 ± 0.501	<0.001

Rad-score: radiomics score; Nomo-score: nomogram score.; RO: renal oncocytoma; chRCC: chromophobe renal cell carcinoma.

Numerical data are presented as mean ± standard deviation.

P1: the p-value of comparison between RO and chRCC in training set;

P2: the p-value of comparison between RO and chRCC in validation set.