Table 3 Univariate (Model 1) and multivariate (Model 2) inverse probability to treatment weighted regression models for ^afewer hospital-free days at 30, 90 and 180 days

 Medical (ref)

 Surgery

3.98

3.40

4.67

< 0.0001

1.24

1.08

1.42

0.004

0.89

0.77

1.02

0.09

 Medical (ref)

 Surgery

4.54

3.86

5.34

< 0.0001

1.26

1.09

1.46

0.002

0.87

0.75

1.01

0.06

Age

1.00

0.99

1.01

0.97

1.00

1.00

1.01

0.65

1.01

1.00

1.01

0.08

 Female (ref)

 Male

1.07

0.90

1.28

0.45

1.09

0.93

1.29

0.30

1.14

0.97

1.34

0.13

 Caucasian (ref)

 Asian/Pacific Islander

0.94

0.73

1.21

0.64

1.01

0.80

1.27

0.94

1.05

0.83

1.32

0.69

 Black

1.90

1.44

2.49

< 0.0001

1.37

1.03

1.84

0.03

1.22

0.91

1.62

0.18

 Hispanic

0.92

0.73

1.17

0.51

1.07

0.86

1.34

0.53

1.13

0.91

1.40

0.28

 Other/Unknown

1.13

0.67

1.91

0.66

0.90

0.56

1.43

0.65

0.70

0.45

1.09

0.11

Elixhauser Comorbidity

1.06

1.05

1.07

< 0.0001

1.04

1.03

1.05

< 0.0001

1.04

1.03

1.05

< 0.0001

DNR Status

1.95

1.50

2.54

< 0.0001

2.37

1.82

3.07

< 0.0001

2.60

1.99

3.38

< 0.0001

Ascites

2.04

1.62

2.56

< 0.0001

2.38

1.91

2.97

< 0.0001

2.19

1.75

2.75

< 0.0001

 Colorectal (ref)

 Ovarian

0.79

0.61

1.04

0.09

0.71

0.55

0.92

0.01

0.76

0.59

0.99

0.04

 Pancreatic

1.37

0.89

2.12

0.16

1.65

1.09

2.50

0.02

2.24

1.48

3.39

0.0001

 Hepatobiliary

1.02

0.42

2.46

0.97

1.86

0.79

4.40

0.16

1.66

0.80

3.44

0.17

 Foregut & Small Bowel

1.03

0.65

1.62

0.91

1.46

0.96

2.22

0.07

2.23

1.48

3.35

0.0001

 Nonovarian Urogyn

1.37

1.00

1.87

0.05

1.63

1.21

2.19

0.001

1.90

1.11

3.25

0.02

 Lung/Mediastinal

0.93

0.51

1.70

0.81

1.27

0.74

2.17

0.38

2.11

1.56

2.88

< 0.0001

 Other

0.97

0.69

1.36

0.84

0.75

0.55

1.03

0.07

1.06

0.77

1.45

0.73

 Unknown

0.82

0.65

1.04

0.10

0.84

0.67

1.05

0.12

0.91

0.73

1.14

0.41

 Multiple Diagnoses

0.99

0.77

1.27

0.95

1.22

0.96

1.54

0.10

1.29

1.02

1.63

0.04