Table 3 Analyzing factors associated with cervical cancer recurrence using Cox regression models.

Age group (years)

< 40

Ref

–

–

Ref

–

–

40–59

0.95

0.76,1.20

0.679

0.99

0.76,1.29

0.935

≥ 60

0.67

0.45,0.99

0.045

0.61

0.37,1

0.052

Parity (times)

0–2

Ref

-

-

Ref

-

-

≥ 3

0.75

0.61,0.92

0.007

0.87

0.67,1.12

0.284

Miscarriage (times)

0

Ref

–

–

Ref

–

–

1–2

1.25

0.99,1.58

0.056

1.17

0.91,1.5

0.226

≥ 3

1.61

1.22,2.13

0.001

1.65

1.23,2.22

0.001

Clinical stage

I

Ref

–

–

Ref

–

–

II

1.37

1.09,1.72

0.007

1.73

1.24,2.41

0.001

III/IV

1.59

1.15,2.19

0.005

2.04

1.32,3.16

0.001

Pathological type

Squamous cell carcinoma

Ref

–

–

Ref

–

–

Adenocarcinoma

0.98

0.63,1.53

0.945

0.88

0.52,1.48

0.620

Others

1.68

0.87,3.26

0.125

1.94

0.71,5.29

0.193

Level of differentiation

Well

Ref

–

–

Ref

–

–

Moderate

1.09

0.78,1.53

0.600

1.01

0.71,1.44

0.946

Poor/undifferentiated

1.49

0.86,2.58

0.152

1.41

0.78,2.52

0.253

Treatment plan

Surgery only

Ref

–

–

Ref

–

–

Surgery plus adjuvant therapy

2.62

1.34,5.13

0.005

1.66

0.73,3.76

0.225

Radiotherapy only

2.26

1.15,4.46

0.019

1.35

0.56,3.25

0.503

Chemotherapy plus radiotherapy

4.69

2.34,9.38

 < 0.001

1.94

0.8,4.7

0.144

Chemotherapy only

10.83

4.49,26.14

 < 0.001

3.62

1.13,11.62

0.03

Year of admission

1992–1995

Ref

–

–

Ref

–

–

1996–2000

1.82

1.13,2.92

0.013

1.9

1.14,3.18

0.014

2001–2005

3.02

1.94,4.68

 < 0.001

3.05

1.86,4.98

 < 0.001