Table 1. Patient demographic and index encounter characteristics, N = 3,273,298.
| Characteristic | N (%) |
|---|---|
| Sex | |
| Female | 1,761,525 (53.8) |
| Male | 1,511,773 (46.2) |
| Age (Years) | |
| Mean ± SE | 43.9 ± 0.01 |
| Race | |
| Caucasian | 2,366,665 (72.3) |
| African American | 711,051 (21.7) |
| Hispanic | 146,877 (4.5) |
| Asian | 48,705 (1.5) |
| Insurance Status | |
| Private | 795,449 (24.3) |
| Medicare | 370,701 (11.3) |
| Medicaid | 248,009 (7.6) |
| Uninsured | 378,536 (11.6) |
| Other | 139,745 (4.3) |
| Missing | 1,340,858 (41.0) |
| Risk Group | |
| Low | 3,010,916 (92.0) |
| High | 262,382 (8.0) |
| Inhospital Mortality | |
| Deaths | 31,298 (1.0) |
| Inhospital Mortality at 1-Year | |
| Deaths | 50,215 (1.5) |
| Care Setting, Index Encounter | |
| ED Visit | 2,204,680 (67.4) |
| Inpatient Stay | 1,068,618 (32.6) |
| Census Region | |
| Northeast | 1,180,270 (36.1) |
| Midwest | 648,644 (19.8) |
| South | 1,077,965 (32.9) |
| West | 366,419 (11.2) |
Abbreviations: ED, emergency department; SE, Standard error.