Table 4 Relative risks for bleeding complications involving intravenous sedation in comparison with general anesthesia in the main, stratified, and sensitivity analyses

Main

All population

Before overlap weighting

1.21

0.80

–

1.81

0.36

After overlap weighting

1.13

0.74

–

1.73

0.57

Stratified

1–5 years

Before overlap weighting

0.82

0.40

–

1.67

0.58

After overlap weighting

0.90

0.40

–

2.01

0.79

6–11 years

Before overlap weighting

1.24

0.69

–

2.24

0.47

After overlap weighting

1.18

0.65

–

2.16

0.59

12–15 years

Before overlap weighting

1.98

0.63

–

6.25

0.24

After overlap weighting

1.87

0.58

–

6.07

0.30

Female

Before overlap weighting

1.43

0.69

–

2.98

0.34

After overlap weighting

1.16

0.54

–

2.51

0.70

Male

Before overlap weighting

1.12

0.69

–

1.83

0.64

After overlap weighting

1.11

0.67

–

1.86

0.68

Sensitivity analysis 1

Generalized estimating equation using PS matched population

0.95

0.48

–

1.88

0.89

Sensitivity analysis 2

All

Instrumental variable method

1.18

0.74

–

1.89

0.49