Table 1. Demographic Characteristics.
| Characteristic | Participants (n = 432 828)a |
|---|---|
| Age, mean (SD), y | 61.0 (12.9) |
| Sex | |
| Female | 31 375 (7.2) |
| Male | 401 453 (92.8) |
| Race | |
| White | 299 809 (69.3) |
| Black | 65 211 (15.1) |
| Otherb | 4696 (1.1) |
| Unknown | 63 112 (14.6) |
| Ethnicity | |
| Not Hispanic or Latino | 379 232 (87.6) |
| Hispanic or Latino | 22 658 (5.2) |
| Missing | 30 938 (7.1) |
| Operative Stress Score | |
| 1 | 44 545 (10.3) |
| 2 | 226 754 (52.4) |
| 3 | 129 846 (30.0) |
| 4 | 28 751 (6.6) |
| 5 | 2932 (0.7) |
| Risk Analysis Index | |
| ≤20 | 199 677 (46.1) |
| 21-29 | 187 459 (43.3) |
| 30-39 | 36 579 (8.5) |
| ≥40 | 9113 (2.1) |
| ASA class | |
| 1 | 10 094 (2.3) |
| 2 | 115 362 (26.6) |
| 3 | 266 402 (61.6) |
| 4 | 39 431 (9.1) |
| 5 | 847 (0.2) |
| Missing | 692 (0.2) |
| Complications, No. | |
| 0 | 401 547 (92.8) |
| 1 | 21 855 (5.0) |
| ≥2 | 9426 (2.2) |
Abbreviation: ASA, American Society of Anesthesiologists.
a
Data are presented as number (percentage) of participants unless otherwise indicated.
b
Other includes American Indian or Alaska Native, Asian, and Native Hawaiian or other Pacific Islander.