Table 3 Univariate and multivariate Cox regression analysis for OS

Age

570

1.108 (1.075—1.142)

 < 0.001

1.050 (1.010—1.091)

0.014

Menopause

570

 < 0.001

 No

165

Reference

Reference

 Yes

393

10.403 (2.523–42.893)

0.001

2.758 (0.580–13.128)

0.202

 Unknown

12

0.000 (0.000–Inf)

0.996

0.000 (0.000–Inf)

0.997

 BMI

255

1.025 (0.927–1.134)

0.627

Chemotherapy

570

0.857

 No

277

Reference

 Yes

293

0.949 (0.535–1.682)

0.857

Radiotherapy

570

0.448

 No

470

Reference

 Yes

100

1.320 (0.656–2.655)

0.436

Stage

570

 < 0.001

 I

470

Reference

Reference

 II

16

2.926 (0.684–12.522)

0.148

1.177 (0.223–6.217)

0.848

 III

63

6.122 (3.088–12.137)

 < 0.001

1.075 (0.218–5.300)

0.929

 IV

14

28.979 (12.307–68.238)

 < 0.001

3.873 (0.936–16.032)

0.062

 Unknown

7

17.109 (5.030–58.193)

 < 0.001

0.489 (0.062–3.839)

0.496

Myometrial infiltration (> = 1/2)

570

 < 0.001

 No

394

Reference

Reference

 Yes

133

6.269 (3.300–11.910)

 < 0.001

3.390 (1.506–7.631)

0.003

 Unknown

43

3.764 (1.354–10.463)

0.011

0.791 (0.138–4.539)

0.793

Cervix involvement

570

 < 0.001

 No

469

Reference

Reference

 Yes

48

4.992 (2.526–9.866)

 < 0.001

0.912 (0.390–2.133)

0.831

 Unknown

53

2.850 (1.293–6.283)

0.009

4.820 (1.300–17.866)

0.019

Lymph node metastasis

570

 < 0.001

 No

415

Reference

Reference

 Yes

58

10.920 (5.600–21.294)

 < 0.001

3.333 (0.761–14.604)

0.110

 Unknown

97

3.401 (1.609–7.191)

0.001

4.153 (1.623–10.626)

0.003

Pathological type

570

 < 0.001

 UEC

396

Reference

Reference

 UCCC

34

12.166 (5.106–28.987)

 < 0.001

12.944 (4.231–39.599)

 < 0.001

 USC

106

10.606 (5.306–21.199)

 < 0.001

5.958 (2.404–14.765)

 < 0.001

 UMC

34

1.205 (0.156–9.280)

0.858

1.777 (0.209–15.114)

0.599