Table 2.
Surgical Patient Characteristics
| All patients | ||
|---|---|---|
| (N=1,321,904) | ||
| Characteristic | % | n |
| Male | 43.2 | 570,846 |
| Transferred status | 1.2 | 15,890 |
| Experienced a complication | 34 | 454,564 |
| Death within 30 days of admission | 1.9 | 25,514 |
| Major Surgical Category | ||
| General Surgery (MDC 6,7,9,10) | ||
| Digestive System disease and disorders (6) | 21.9 | 279,503 |
| Hepatobiliary System diseases and disorders (7) | 11.2 | 143,411 |
| Diseases and disorders of the skin, subcutaneous tissue & breast (9) | 3.6 | 45,457 |
| Endocrine, Nutritional, Metabolic Diseases & Disorders (10) | 5.6 | 71,031 |
| Orthopedic Surgery (MDC 8) | ||
| Musculoskeletal System & Connective Tissue | 52.3 | 668,639 |
| Vascular Surgery (MDC 5) | ||
| Circulatory system diseases and disorders | 5.5 | 70,021 |
| Comorbid Conditions* | ||
| Congestive heart failure | 5.3 | 69,700 |
| Valvular disease | 4.7 | 61,830 |
| Peripheral vascular disorders | 4.5 | 59,563 |
| Hypertension | 48.4 | 639,698 |
| Other neurological disorders | 4.21 | 55,704 |
| Chronic pulmonary disease | 14.6 | 193,499 |
| Diabetes, uncomplicated | 15.0 | 198,805 |
| Diabetes, complicated | 3.4 | 44,600 |
| Hypothyroidism | 9.5 | 124,916 |
| Renal failure | 4.9 | 64,749 |
| Liver disease | 2.3 | 30,500 |
| Metastatic cancer | 3.2 | 42,227 |
| Rheumatoid arthritis/collagen vascular diseases | 2.4 | 31,296 |
| Obesity | 8.7 | 114,295 |
| Weight loss | 1.8 | 23,565 |
| Deficiency anemias | 13.9 | 183,412 |
| Alcohol abuse | 2.4 | 31,499 |
| Depression | 7.3 | 96,261 |
Note.
*
Other comorbidities used to risk-adjust in our models: pulmonary circulation disorders, paralysis, solid tumor without metastasis, blood loss anemias, drug abuse, psychoses, peptic ulcer disease, AIDS, and lymphoma. All of these conditions were exhibited by fewer than 2% of all patients and fewer than 3% of patients with complications.