|
Procedure
| | | | |
|
Small bowel resection
|
Ref
|
…
| | |
|
Appendectomy
|
0.17
|
0.10–0.29
|
Ref
|
…
|
|
Cholecystectomy
|
0.31
|
0.17–0.54
| | |
|
Colonic resection
|
0.82
|
0.41–1.65
| | |
|
Pyloromyotomy
|
0.02
|
0.01–0.05
| | |
|
Combination of two procedures
|
0.8
|
0.36–1.76
|
4.75
|
2.40–9.38
|
|
Combination of three procedures
|
4.22
|
0.42–42.95
|
25.71
|
2.73–242.38
|
|
Age group
| | | | |
|
>12 years
|
Ref
|
…
|
Ref
|
…
|
|
< 1 month
|
3.71
|
1.57–8.77
|
17.03
|
7.70–37.68
|
|
1–24 months
|
2.11
|
1.32–3.35
|
1.77
|
0.99–3.17
|
|
2–12 years
|
0.92
|
0.82–1.05
|
0.88
|
0.77–1.00
|
|
Sex
| | | | |
|
Male
|
Ref
|
…
|
Ref
|
…
|
|
Female
|
0.67
|
0.60–0.76
|
0.7
|
0.62–0.80
|
|
Race
| | | | |
|
Caucasian
|
Ref
|
…
|
Ref
|
…
|
|
African American
|
1.38
|
1.13–1.69
|
1.36
|
1.08–1.73
|
|
Hispanic
|
0.97
|
0.84–1.12
|
0.98
|
0.84–1.14
|
|
Asian and Pacific Islander
|
1.08
|
0.76–1.52
|
1.09
|
0.76–1.57
|
|
Native American
|
1.71
|
1.08–2.71
|
1.43
|
0.82–2.50
|
|
Other
|
1.3
|
1.03–1.65
|
1.42
|
1.11–1.83
|
|
Insurance Status
| | | | |
|
Medicare
|
Ref
|
…
|
Ref
|
…
|
|
Medicaid
|
0.51
|
0.23–1.13
|
0.58
|
0.23–1.47
|
|
Private Insurance
|
0.55
|
0.25–1.20
|
0.62
|
0.24–1.57
|
|
Self-pay
|
0.58
|
0.25–1.31
|
0.65
|
0.25–1.72
|
|
No Charge
|
0.89
|
0.27–2.95
|
1
|
0.25–1.72
|
|
Other
|
0.69
|
0.30–1.60
|
0.79
|
0.30–2.13
|
|
Median Income for ZIP code
| | | | |
|
First Quartile
|
Ref
|
…
|
Ref
|
…
|
|
Second Quartile
|
1.09
|
0.94–1.26
|
1.16
|
0.99–1.37
|
|
Third Quartile
|
1.08
|
0.93–1.27
|
1.09
|
0.92–1.29
|
|
Fourth Quartile
|
0.91
|
0.76–1.10
|
0.93
|
0.76–1.13
|
|
Geographic Region of Hospital
| | | | |
|
Northeast
|
Ref
|
…
|
Ref
|
…
|
|
Midwest
|
1.22
|
1.00–1.49
|
1.16
|
0.93–1.44
|
|
South
|
1.18
|
0.99–1.41
|
1.21
|
1.00–1.47
|
|
West
|
1.01
|
0.84–1.21
|
1
|
0.82–1.21
|
|
Hospital Location and Teaching Status
| | | | |
|
Rural
|
Ref
|
…
|
Ref
|
…
|
|
Urban Non-teaching
|
0.94
|
0.74–1.18
|
0.96
|
0.75–1.24
|
|
Urban Teaching
|
0.74
|
0.60–0.92
|
0.74
|
0.58–0.94
|
|
Hospital Size
| | | | |
|
Small (1 to 99 beds)
|
Ref
|
…
|
Ref
|
…
|
|
Medium (100 to 399 beds)
|
0.89
|
0.73–1.07
|
0.93
|
0.76–1.14
|
|
Large (≥ 400 beds)
|
0.9
|
0.77–1.06
|
0.9
|
0.76–1.08
|
|
Admission Modality
| | | | |
|
Non-elective
|
Ref
|
…
|
Ref
|
…
|
|
Elective
|
1.51
|
1.24–1.84
|
1.3
|
1.00–1.69
|
|
Admission Day
| | | | |
|
Weekday
|
Ref
|
…
|
Ref
|
…
|
|
Weekend
|
0.97
|
0.85–1.10
|
0.94
|
0.82–1.08
|
|
Admission Month
| | | | |
|
Month
|
1.00
|
0.99–1.02
|
1.00
|
0.98–1.02
|
|
Intestinal Perforation
| | | | |
|
No
|
Ref
|
…
|
Ref
|
…
|
|
Yes
|
4.12
|
3.57–4.75
|
4.27
|
3.69–4.94
|
