Table 1.
Patient demographics and operative characteristics by age.
| Characteristic | Age <75 (n=18,901) |
Age ≥75 (n=4,323) |
|---|---|---|
| Descriptives | ||
| Median age (years) | 49.2 | 81.9 |
| Male sex (%) | 49.9 | 40.9 |
| Non-white race (%) | 30.2 | 20.8 |
| Mean BMI (Kg/m2) | 29.1 | 26.3 |
| Clinical (%) | ||
| Diabetes mellitus | 13.2 | 20.4 |
| Smoking in past year | 33.3 | 9.4 |
| DNR | 0.49 | 5.5 |
| Chronic obstructive pulmonary disease | 6.1 | 15.4 |
| Dialysis | 2.9 | 3.8 |
| Disseminated cancer | 1.8 | 3.1 |
| Steroid use | 3.6 | 6.1 |
| Sepsis | 28.0 | 29.8 |
| Albumin <3.5 g/dl | 23.1 | 48.3 |
| Independent functional status | 88.6 | 66.2 |
| Hypertension requiring medication | 36.2 | 78.3 |
| Acute renal failure | 1.9 | 3.8 |
| Perioperative | ||
| ASA class ≥ 4 (%) | 14.8 | 41.8 |
| Mean work RVU | 14.3 | 19.1 |
| Median operative duration (minutes) | 57 | 77 |