Table 4 Univariate and multivariate Cox regression analysis for PFS

Age

536

1.097 (1.054–1.143)

 < 0.001

1.091 (1.021–1.166)

0.010

Menopause

536

0.027

 No

162

Reference

Reference

 Yes

363

3.610 (1.084–12.025)

0.037

0.539 (0.109–2.677)

0.450

 Unknown

11

0.000 (0.000–Inf)

0.997

0.000 (0.000–Inf)

0.998

BMI

237

0.962 (0.846–1.095)

0.558

Chemotherapy

536

0.066

 No

261

Reference

Reference

 Yes

275

2.125 (0.923–4.892)

0.076

0.609 (0.207–1.791)

0.368

Radiotherapy

536

0.002

 No

440

Reference

Reference

 Yes

96

3.684 (1.692–8.024)

0.001

1.096 (0.375–3.209)

0.867

Stage

536

0.025

 I

457

Reference

Reference

 II

15

3.744 (0.861–16.290)

0.078

0.524 (0.073–3.788)

0.522

 III

53

4.193 (1.724–10.197)

0.002

0.000 (0.000–Inf)

0.997

 IV

7

5.798 (0.759–44.274)

0.090

0.000 (0.000–Inf)

0.998

 Unknown

4

0.000 (0.000–Inf)

0.997

0.143 (0.000–Inf)

1.000

Myometrial infiltration (> = 1/2)

536

 < 0.001

 No

384

Reference

Reference

 Yes

114

5.562 (2.523–12.262)

 < 0.001

3.788 (1.255–11.427)

0.018

 Unknown

38

0.000 (0.000–Inf)

0.997

0.000 (0.000–Inf)

0.998

Cervix involvement

536

 < 0.001

 No

448

Reference

Reference

 Yes

41

9.638 (4.224–21.994)

 < 0.001

6.253 (1.620–24.138)

0.008

 Unknown

47

2.232 (0.635–7.839)

0.210

4.724 (0.929–24.014)

0.061

Lymph node metastasis

536

0.001

 No

406

Reference

Reference

 Yes

44

5.487 (2.344–12.847)

 < 0.001

406749342.7904 (0.000–Inf)

0.997

 Unknown

86

0.598 (0.138–2.602)

0.493

1.044 (0.204–5.340)

0.959

Pathological type

536

 < 0.001

 UEC

389

Reference

Reference

 UCCC

29

10.192 (3.400–30.548)

 < 0.001

8.696 (1.972–38.354)

0.004

 USC

85

6.432 (2.603–15.895)

 < 0.001

4.131 (1.243–13.729)

0.021

 UMC

33

3.070 (0.663–14.228)

0.152

5.356 (0.935–30.692)

0.060