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Table 3 Characteristics of the patients after using IPW matching

From: Being treated in higher volume hospitals leads to longer progression-free survival for epithelial ovarian carcinoma patients in the Rhone-Alpes region of France

 

Low-volume hospital (n = 78 patients)

High-volume hospital (n = 189 patients)

  
 

m

m

P-value

% bias

Age

67.56

65.81

0.568

− 13.5

Cancer history

0.15

0.17

0.830

5.7

Ascites

0.69

0.67

0.920

− 2.5

Neoadjuvant chemotherapy

0.52

0.57

0.712

9.6

Histology:

 - HGSC

0.65

0.59

0.642

−11.7

 - LGSC

0.05

0.03

0.700

− 8.2

 - Mucinous

0.03

0.04

0.739

6.6

 -Endometrioid

0.14

0.11

0.659

− 10.6

 - Clear cell

0.05

0.05

0.995

0.1

 - Unknown

0.08

0.17

0.318

27.5

FIGO Stage:

 - I

0.15

0.15

0.920

2.3

 - II

0.08

0.07

0.916

− 2.9

 - III

0.68

0.66

0.848

− 4.7

 - IV

0.09

0.11

0.793

6.3

Tumor Grade:

 - 1

0.06

0.05

0.717

− 6.5

 - 2

0.14

0.14

0.980

− 0.6

 - 3

0.80

0.82

0.823

5.1

   

Mean:

7.3

   

Median:

6.3

  1. m: mean (frequency) if the covariate is continuous (binary) / % bias, also known as the standardized difference of the mean
  2. HGSC High-Grade Serous Carcinoma, LGSC Low-Grade Serous Carcinoma