Table 1.
Stanford cohort demographics grouped by train test split.
| Dataset | |||
|---|---|---|---|
| Description | Category | Test (2019) | Train + Validation (2009–2018) |
| n | Total | 1320 | 7022 |
| Emergency department, n (%) | Stanford ED | 855 (64.8) | 6669 (95.0) |
| Valley Care ED | 465 (35.2) | 353 (5.0) | |
| Age, mean (SD) | 70.4 (17.2) | 67.5 (17.3) | |
| Sex, n (%) | Female | 793 (60.1) | 4171 (59.4) |
| Male | 527 (39.9) | 2851 (40.6) | |
| Race, n (%) | White | 757 (57.3) | 3937 (56.1) |
| Other | 251 (19.0) | 1411 (20.1) | |
| Asian | 201 (15.2) | 937 (13.3) | |
| Black | 69 (5.2) | 464 (6.6) | |
| Pacific Islander | 30 (2.3) | 206 (2.9) | |
| Unknown | 7 (0.5) | 40 (0.6) | |
| Native American | 5 (0.4) | 27 (0.4) | |
| Ethnicity, n (%) | Non-Hispanic | 1117 (84.6) | 5823 (82.9) |
| Hispanic/Latino | 195 (14.8) | 1169 (16.6) | |
| Unknown | 8 (0.6) | 30 (0.4) | |
| Language, n (%) | English | 1112 (84.2) | 5743 (81.8) |
| Non-English | 208 (15.8) | 1279 (18.2) | |
| Insurance Payer, n (%) | Medicare | 651 (49.3) | 3805 (54.2) |
| Other | 615 (46.6) | 2987 (42.5) | |
| Medi-Cal | 54 (4.1) | 230 (3.3) | |