Table 3 Logistic regression model coefficients and scores of the risk of FSROVVF

Scarring fibrosis

5.01

[1.73–14.49]

1.61

0.0030

2

Number of fistulas ≥ 2

9.04

[3.01–27.13]

2.20

0.0001

2

Fistula size > 3 cm

3.65

[1.36–9.76]

1.29

0.0100

1

Association of vesico-vaginal fistula with other types of fistula

3.16

[1.09–9.13]

1.15

0.0340

1

Perioperative hemorrhage

7.01

[2.33–21.03]

1.95

0.0005

2

Post-operative infection

178.89

[26.09–1226.64]

5.19

 < 0.0001

5