Table 2 Univariate and multivariate analysis for predictors of in-hospital mortality in patients admitted for choledocholithiasis and cholangitis

Female sex

Choledocholithiasis

0.60 [0.53–0.69]

< 0.00001

0.76 [0.66–0.88]

< 0.001

Cholangitis

1.06 [0.86–1.32]

0.56

0.98 [0.78–1.24]

0.89

Weekend Admission

Choledocholithiasis

0.93 [0.79–1.09]

0.37

0.96 [0.80–1.14]

0.63

Cholangitis

0.89 [0.69–1.15]

0.39

0.88 [0.66–1.16]

0.36

Year of Admission

Choledocholithiasis

0.93 [0.91–0.95]

< 0.00001

0.90 [0.88–0.93]

< 0.00001

Cholangitis

0.94 [0.91–0.98]

0.0047

0.93 [0.89–0.97]

< 0.001

Age

< 40 Years

Choledocholithiasis

1

.

1

.

Cholangitis

1

.

1

.

40–64 years

Choledocholithiasis

6.67 [3.82–11.64]

< 0.00001

3.56 [1.84–6.87]

< 0.001

Cholangitis

1.90 [1.07–3.36]

0.027

1.10 [0.59–2.04]

0.45

> 65 Years

Choledocholithiasis

31.91 [18.79–54.20]

< 0.00001

8.16 [4.15–16.07]

< 0.00001

Cholangitis

3.73 [2.16–6.42]

< 0.00001

1.81 [0.93–3.52]

0.082

Race

White

Choledocholithiasis

1

-

1

-

Cholangitis

1

-

1

-

Black

Choledocholithiasis

0.86 [0.65–1.13]

0.28

1.30 [0.98–1.72]

0.068

Cholangitis

1.56 [1.05–2.30]

0.026

1.71 [1.13–2.59]

0.011

Hispanic

Choledocholithiasis

0.56 [0.45–0.71]

< 0.00001

1.15 [0.90–1.47]

0.26

Cholangitis

1.17 [0.79–1.73]

0.43

1.37 [0.92–2.04]

0.12

Asian or Pacific Islander

Choledocholithiasis

0.85 [0.57–1.27]

0.42

0.98 [0.65–1.47]

0.91

Cholangitis

1.47 [0.93–2.34]

0.100

1.51 [0.95–2.40]

0.079

Other

Choledocholithiasis

0.44 [0.27–0.72]

0.0010

0.67 [0.41–1.09]

0.11

Cholangitis

1.24 [0.68–2.28]

0.48

1.44 [0.78–2.66]

0.25

Payment Method

Medicare

Choledocholithiasis

1

-

1

-

Cholangitis

1

-

1

-

Medicaid

Choledocholithiasis

0.19 [0.14–0.26]

< 0.00001

1.05 [0.72–1.53]

0.80

Cholangitis

0.73 [0.48–1.10]

0.13

1.13 [0.69–1.86]

0.63

Private Insurance

Choledocholithiasis

0.16 [0.12–0.19]

< 0.00001

0.54 [0.39–0.75]

< 0.001

Cholangitis

0.51 [0.38–0.67]

< 0.00001

0.83 [0.57–1.21]

0.34

Other

Choledocholithiasis

0.14 [0.10–0.20]

< 0.00001

0.77 [0.50–1.18]

0.23

Cholangitis

0.53 [0.31–0.89]

0.017

0.85 [0.43–1.69]

0.64

Comorbid Conditions

None

Choledocholithiasis

1

-

1

-

Cholangitis

1

-

1

-

1 Comorbidity

Choledocholithiasis

2.72 [2.19–3.38]

< 0.00001

2.99 [1.52–5.86]

0.0015

Cholangitis

1.98 [1.34–2.94]

< 0.001

1.67 [0.66–4.24]

0.28

2 Comorbidities

Choledocholithiasis

6.39 [5.12–7.98]

< 0.00001

4.43 [2.32–8.46]

< 0.00001

Cholangitis

2.25 [1.49–3.41]

< 0.001

2.82 [1.15–6.89]

0.023

≥ 3 Comorbidities

Choledocholithiasis

12.88 [10.67–15.54]

< 0.00001

15.17 [7.98–28.82]

< 0.00001

Cholangitis

4.75 [3.41–6.62]

< 0.00001

5.95 [2.52–14.06]

< 0.00001

Urban Vs. Rural Hospital

Urban Hospital

Choledocholithiasis

0.99 [0.79–1.24]

0.92

1.16 [0.89–1.52]

0.27

Cholangitis

1.01 [0.71–1.45]

0.94

1.12 [0.72–1.72]

0.62