Table 2 Hazard ratios from the Weibull PH model for the ovarian dataset

From: Survival Analysis Part II: Multivariate data analysis – an introduction to concepts and methods

 

Univariate analysis

Multivariate analysis

Covariate

Coefficient ( bi)

HR [exp( bi)]

95% CI

P -value

Coefficient ( bi)

HR [exp( bi)]

95% CI

P -value

FIGO stage

0.862

2.37

(2.14–2.62)

<0.001

0.768

2.16

(1.89–2.46)

<0.001

Histology

   

<0.001

   

<0.001

 Serous

(0.000)

(1.00)

  

(0.000)

(1.00)

  

 Mucinous

−0.804

0.45

(0.35–0.57)

 

−0.496

0.61

(0.47–0.79)

 

 Endometroid

−1.276

0.28

(0.20–0.40)

 

0.120

1.13

(0.75–1.70)

 

 Clear cell

−0.419

0.66

(0.48–0.90)

 

0.346

1.41

(0.99–2.02)

 

 Adenocarcinoma

0.113

1.12

(0.73–1.71)

 

0.499

1.65

(0.91–2.97)

 

 Undifferentiated

0.397

1.49

(0.82–2.71)

 

0.765

2.15

(1.06–4.37)

 

 Mixed Mesodermal

0.638

1.89

(1.31–2.73)

 

0.804

2.23

(1.47–3.40)

 

Grade

       

<0.001

 1

(0.000)

(1.00)

 

<0.001

(0.000)

(1.00)

  

 2

1.154

3.17

(1.97–5.10)

 

0.928

2.53

(1.47–4.36)

 

 3

1.727

5.62

(3.58–8.84)

 

0.895

2.45

(1.43–4.20)

 

Absence of ascites

−0.840

0.43

(0.36–0.52)

<0.001

−0.404

0.67

(0.54–0.83)

<0.001

Age (per 5-year increase)

0.165

1.18

(1.14–1.22)

<0.001

0.138

1.15

(1.10–1.20)

<0.001

  1. HR=hazard ratio, CI=confidence interval.
Back to article page