Table 2 Logistic regression analysis of the risk factors for LNM

Age

1.000 (0.965–1.037)

0.992

Gender

1.217 (0.479–3.095)

0.679

Location

1.037 (0.909–1.184)

0.588

Shape

1.104 (0.742–1.642)

0.625

Size

0.954 (0.807–1.128)

0.584

Calcification

0.777 (0.275–2.191)

0.633

Cystic necrosis

1.367 (0.559–3.342)

0.494

Tumor boundary

1.253 (0.606–2.589)

0.543

Number

0.597 (0.303–1.177)

0.137

Stalk

0.178 (0.041–0.776)

0.022

0.160 (0.032–0.802)

0.026

CT reported T stage

3.662 (1.721–7.794)

0.001

2.009 (0.833–4.848)

0.120

CT reported LN status

16.190 (6.001–43.683)

0

17.049 (5.986–48.558)

0

CT value in corticomedullary phase

0.990 (0.974–1.006)

0.203

CT value in nephrographic phase

0.999 (0.982–1.017)

0.935

CT value in excretory phase

1.000 (0.980–1.020)

0.995