Table 5 Odds ratios for in-hospital mortality by body mass index categories in sensitivity analyses

Type of analysis

Sensitivity analysis 1 (continuous linear eGFR)

Sensitivity analysis 2 (limiting to length of stay > 2)

Body mass index

Odds ratio

95% CI

P value

Odds ratio

95% CI

P value

Low

1.73

1.25

-

2.40

0.001

1.50

1.08

-

2.10

0.017

Medium–low

0.87

0.61

-

1.25

0.45

0.81

0.56

-

1.16

0.26

Medium–high

Reference

Reference

High

0.86

0.59

-

1.26

0.44

0.94

0.64

-

1.38

0.74

Type of analysis

Sensitivity analysis 3 (multiple imputation)

Sensitivity analysis 4 (excluding those with AKI)

Body mass index

Odds ratio

95% CI

P value

Odds ratio

95% CI

P value

Low

1.79

1.31

-

2.45

 < 0.001

1.69

1.21

-

2.36

 < 0.001

Medium–low

0.97

0.68

-

1.37

0.85

0.88

0.61

-

1.27

0.49

Medium–high

Reference

Reference

High

0.88

0.61

-

1.27

0.50

0.87

0.59

-

1.29

0.49