Table 2.
Stratified patient characteristics.
| Variables | Total cohort (2844 patients) | Train (2275 patients) | Test (569 patients) |
|---|---|---|---|
| AGE, mean(SD) | 55.6 (17.9) | 55.5 (18.0) | 55.7 (17.9) |
| GENDER [mean age/std] | |||
| Male | 1470 (46%) [56.7 (16.8)] | 1115 (46%) [56.8 (17.0)] | 254 (42%) [56.5 (16.2)] |
| Female | 1719 (54%) [54.5 (18.8)] | 1298 (54%) [54.5 (18.8)] | 351 (58%) [55.2 (19.1)] |
| Race | |||
| African American | 1678 (56.4%) | 1357 (56.1%) | 321 (54.4%) |
| Caucasian/White | 593 (19.7%) | 474 (19.6%) | 119 (19.7%) |
| Asian | 79 (2.6%) | 62 (2.6%) | 17 (2.8%) |
| American Indian or Alaska Native | 11 (0.4%) | 6 (0.3%) | 5(0.8%) |
| Multiple | 10 (0.3%) | 6 (0.3%) | 4 (0.7%) |
| Native Hawaiian Pacific Islander | 6 (0.2%) | 2 (0.1%) | 4 (0.7%) |
| Unknown | 638 (21.1%) | 511 (21.1%) | 127 (21.0%) |
| Ethnic group | |||
| Hispanic or Latino | 233 (7.7%) | 188 (7.8%) | 45 (7.4%) |
| Non-Hispanic or Latino | 2131 (70.5%) | 1706 (70.6%) | 425 (70.3%) |
| Unknown | 659 (21.8) | 524 (21.7%) | 135 (22.3%) |
| Comorbidities | |||
| Respiratory disease | 1799 (59.5%) | 1435 (59.3%) | 364 (60.2%) |
| Hypertension | 1372 (45.4%) | 1092 (45.2%) | 280 (46.3%) |
| Renal disease | 1016 (33.6%) | 806 (33.3%) | 210 (34.7%) |
| Diabetes | 467 (15.4%) | 380 (15.7%) | 87 (14.4%) |