Table 2 Predictors of metastatic lymph nodes in multivariable analysis

(Intercept)

0.03 (0.02, 0.04)

 < 0.001

 < 0.001

Age at diagnosis

0.001

  < 45 ys

Referent

  >  = 45 ys

0.76 (0.66, 0.88)

 < 0.001

Histologic subtype

0.045

 Squamous

Referent

 Adenocarcinoma

0.95 (0.79, 1.13)

0.043

 Others

1.28 (1.01, 1.62)

0.039

Tumor grade

 < 0.001

 I

Referent

 II

2.57 (1.83, 3.60)

 < 0.001

 III or IV

3.39 (2.41, 4.77)

 < 0.001

Tumor size

 < 0.001

  < 2 cm

Referent

 2 ~ 4(< 4)cm

3.32 (2.63, 4.18)

 < 0.001

 4 ~ 6(< 6)cm

4.60 (3.61, 5.87)

 < 0.001

  > 6 cm

4.10 (3.14, 5.34)

 < 0.001

FIGO

 < 0.001

 I

Referent

 II

1.77 (1.50, 2.08)

 < 0.001