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Table 3 Multivariate regression analysis excluding or including CHA features for differentiation of ROs and RCCs

From: CT differentiation of the oncocytoma and renal cell carcinoma based on peripheral tumor parenchyma and central hypodense area characterisation

Model

Coefficient

Odds ratio

95% CI (odds ratio)

P value

Differentiation of ROs and ccRCCs excluding CT features of CHA

 Constant

 Persistent low sign

 AVT in CMP

 RER in CMP

− 8.052

− 1.893

0.025

6.616

0.151

1.026

747.002

0.026–0.880

1.001–1.051

10.770-51814.956

0.036

0.042

0.002

Differentiation of ROs and ccRCCs including CT features of CHA

 Constant

 Enhancement inversion

 RER in CMP

− 9.218

− 2.106

0.023

0.122

706.727

0.018–0.820

7.457-66979.129

0.030

0.005

Differentiation of ROs and non-ccRCCs excluding CT features of CHA

 Constant

 RER in NP

6.539

− 9.737

0.000

0.000-0.014

< 0.001

Differentiation of ROs and non-ccRCCs including CT features of CHA

 Constant

 Enhancement inversion

 RER in NP

6.339

− 1.690

−8.484

0.184

0.000

0.038−0.900

0.000−0.067

0.037

0.004

  1. AVT Attenuation value of tumor. ccRCC Clear cell renal cell carcinoma, CHA Central hypodense area, CMP Corticomedullary phase, LSR Long-to-short-axis ratio, NP Nephrographic phase, RO Renal oncocytoma, RCC Renal cell carcinoma, . RER: relative enhancement ratio