Table 1. Demographic Characteristics of 1137 Patients.
| Characteristic | No. (%) |
|---|---|
| Age at surgery, median (IQR), y | 80 (77-84) |
| Women | 583 (51.3) |
| Race | |
| White | 961 (84.5) |
| Black | 49 (4.3) |
| Asian | 63 (5.5) |
| Othera | 15 (1.3) |
| Unknown | 49 (4.3) |
| MSK-FI score | |
| 0 | 87 (7.7) |
| 1 | 269 (23.7) |
| 2 | 314 (27.6) |
| 3 | 211 (18.6) |
| 4 | 136 (12.0) |
| ≥5 | 120 (10.6) |
| Preoperative albumin level, median (IQR), g/dL | 4.0 (3.8-4.3) |
| Operating room duration, median (IQR), min | 163 (103-250) |
| ASA physical status classification | |
| 2 | 73 (6.4) |
| 3 | 977 (85.9) |
| 4 | 87 (7.7) |
| Surgical categoryb | |
| Colorectal | 460 (40.5) |
| Gastric and mixed tumor | 69 (6.1) |
| Gynecology | 280 (24.6) |
| Head and neck | 299 (26.3) |
| Interventional radiology | 158 (13.9) |
| Urology | 202 (17.8) |
| Neurosurgery | 72 (6.3) |
| Plastic | 99 (8.7) |
| Hepatobiliary and pancreatic | 190 (16.7) |
| Thoracic | 163 (14.3) |
| Other | 178 (15.7) |
Abbreviations: ASA, American Society of Anesthesiologists; IQR, interquartile range; MSK-FI, Memorial Sloan Kettering–Frailty Index.
SI conversion factor: To convert albumin to grams per liter, multiply by 10.
a
Other category included Native American, Native Hawaiian, Alaskan Native, and Pacific Islander.
b
Percentages do not sum to 100, as patients underwent multiple procedures under different categories.