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Table 2 The result of Cox multi-regression survival analysis

From: Establishment and verification of the nomogram that predicts the 3-year recurrence risk of epithelial ovarian carcinoma

Factors

Stratification factor

HR

95%CI

P

FIGO stage

I

1

  

II

2.3

0.8–6.4

0.102

III

5.9

2.1–16.4

0.001

IV

6.3

2.0–20.0

0.002

Histological grade

G1

1

  

G2

6.4

1.4–28.4

0.015

G3

6.9

1.6–31.1

0.011

Histological type

Serous carcinoma

1

  

Non-serous carcinoma*

1.8

1.1–2.9

0.027

Postoperative residual size

0

1

  

< 1 cm

0.6

0.3–1.1

0.099

≥1 cm

0.7

0.4–1.5

0.392

Lymph node status

No metastasis

1

  

Metastasis

2.0

0.8–4.8

0.114

Not available

1.6

0.8–3.3

0.158

Pretreatment CA125 level

< 35 U/mL

1

  

≥35 U/mL and < 1000 U/mL

1.7

0.6–5.0

0.304

≥1000 U/mL

2.0

0.7–6.2

0.210

Expression of ER in tumor tissues

Negative

1

  

Positive

1.0

0.6–1.6

0.942