Age (reference ≤ 70 yr) |
< 0.0001 |
0.79 (0.76-0.83) |
Gender (reference female) |
< 0.0001 |
0.58 (0.57-0.60) |
Diabetes |
< 0.0001 |
1.41 (1.37-1.45) |
Hypertension |
0.05 |
0.97 (0.94-1.0) |
Obesity |
< 0.0001 |
4.47 (4.34-4.61) |
Dyslipidemia |
< 0.0001 |
2.35 (2.28-2.42) |
Location (reference central metropolitan) |
< 0.0001 |
50000-250000 population |
|
1.2 (1.1-1.3) |
Fringe metropolitan |
|
1.1 (1.1-1.2) |
Metro 250000 - one million population |
|
1.2 (1.1-1.2) |
Micropolitan |
|
1.4 (1.4-1.5) |
Other |
|
1.4 (1.3-1.4) |
Income (reference ≥ $63000) |
< 0.0001 |
$39000-$47999 |
|
0.80 (0.77-0.83) |
$48000-$62999 |
|
0.86 (0.82-0.89) |
< $39000 |
|
0.64 (0.62-0.67) |
Payer (reference private insurance) |
< 0.0001 |
Medicaid |
|
0.42 (0.41-0.43) |
Medicare |
|
0.46 (0.44-0.47) |
No charge |
|
0.61 (0.53-0.70) |
Other |
|
0.55 (0.51-0.59) |
Self-pay |
|
0.65 (0.62-0.68) |
Associated diagnoses |
Abdominal hernia |
< 0.0001 |
1.70 (1.63-1.79) |
Appendiceal disorders |
< 0.0001 |
2.58 (2.19-3.04) |
Benign biliary disorders |
< 0.0001 |
2.11 (2.03-2.19) |
Benign pancreatic disorders |
< 0.0001 |
1.57 (1.50-1.64) |
Diverticular disease |
< 0.0001 |
2.22 (2.11-2.34) |
Esophageal disorders (non-variceal) |
< 0.0001 |
1.52 (1.48-1.57) |
Gastroduodenal ulcer |
< 0.0001 |
1.41(1.33-1.49) |
Gastrointestinal hemorrhage |
< 0.0001 |
0.41 (0.38-0.44) |
Gastrointestinal malignancies |
< 0.0001 |
0.83 (0.76-0.91) |
Hepatobiliary malignancies |
< 0.0001 |
0.12 (0.10-0.15) |
Inflammatory bowel disease |
< 0.0001 |
1.68 (1.52-1.86) |
Intestinal infection |
< 0.0001 |
1.29 (1.19-1.40) |
Intestinal obstruction |
< 0.0001 |
1.30 (1.22-1.39) |
Peritonitis-abscess |
< 0.0001 |
0.47 (0.42-0.53) |