Table 5 Risk factors for perforation from multivariate logistic regression and sensitivity analysis

Logistic

Conditional

Logistic

Conditional

1.02

1.39

(0.45–2.31)

(0.42–4.64)

0.68

0.56

(0.31–1.50)

(0.19–1.62)

7.81

21.9

3.67

6.40

(1.98–30.8)

(3.92–122.5)

(1.47–9.18)

(1.13–36.2)

256.7

(12.5–5274.1)

28.5

4.71

5.40

(3.00–270.3)

(1.29–17.2)

(0.55–53.5)

0.05

(0.004–0.57)

5.90

2.37

3.20

(2.59–13.4)

(1.29–4.34)

(0.75–13.6)

1.04

0.85

(0.13–8.41)

(0.03–22.3)

0.50

2.03

(0.13–1.86)

(0.24–16.9)

4.40

1.90

2.61

(1.10–17.7)

(0.71–5.12)

(0.59–11.5)

2.20

1.23

2.47

(0.28–16.6)

(0.28–5.45)

(0.13–46.6)

1.62

0.83

2.18

(0.27–9.81)

(0.21–3.23)

(0.33–14.4)

287.7

39.4

51.8

(22.9–3619.8)

(8.79–176.3)

(3.57–752.9)

366.2

76.6

28.4

23.8

(61.9–2166.2)

(13.7–429.6)

(11.6–69.6)

(5.70–100.0)

24.4

100.7

(3.30–180.6)

(7.05–1438.0)

0.002

(0.00–0.12)

3.63

3.43

(1.40–9.46)

(0.75–15.7)

141.2

(7.02–2838.0)

0.19

(0.04–0.89)

1522.0

(14.4–160,502.9)

0.03

0.39

0.42

(0.01–0.16)

(0.18–0.88)

(0.12–1.44)

9.69

(2.27–41.4)

1.13

1.04

1.02

(1.05–1.22)

(1.00–1.10)

(0.95–1.11)

1.00

1.01

(1.01–1.01)

(1.00–1.01)

0.75

0.78

(0.65–0.87)

(0.66–0.92)

0.32

(0.16–0.68)

0.97

(0.95–1.00)

1.67

(1.10–2.53)