Table 2.
Demographic characteristics of the study cohort
| Variable | No status epilepticus | Percentage | With status epilepticus | Percentage |
|---|---|---|---|---|
| Number of SDH patients | 1575834 | 99.50% | 7421 | 0.5 |
| 1° SDH/2° SDH | 1130031 / 445803 | 71.7%/ 28.3% | 4337 / 3084 | 58.4%/ 41.6% |
| Age [Mean + SD] | 69.64 + 18.07 | 65.53 + 17.1 | ||
| Female/Male | 646092 / 929742 | 41%/ 59% | 2930 / 4491 | 39.5% / 60.5% |
| Race* | ||||
| White | 884516 | 56.10% | 3760 | 50.70% |
| Black | 127327 | 8.10% | 1147 | 15.50% |
| Hispanic | 95653 | 6.10% | 581 | 7.80% |
| Asian | 39711 | 2.50% | 141 | 1.90% |
| Native American | 6303 | 0.40% | 59 | 0.80% |
| Other | 30256 | 1.90% | 159 | 2.10% |
| Not stated | 391910 | 24.90% | 1573 | 21.20% |
| Hospital characteristics* | ||||
| Rural | 111254 | 7% | 323 | 4.30% |
| Urban private | 913669 | 58% | 4405 | 59.40% |
| Urban academic | 550912 | 35% | 2693 | 36.30% |
| Northeast | 307918 | 19.50% | 1479 | 19.90% |
| Midwest | 352829 | 22.40% | 1523 | 20.50% |
| South | 586368 | 37.20% | 2758 | 37.20% |
| West | 328561 | 20.90% | 1660 | 22.40% |
| Small to medium (<300 beds) | 111096 | 7% | 470 | 6.40% |
| Large (300–500 beds) | 330295 | 21% | 1633 | 22.00% |
| Extra-large (>500 beds) | 1134285 | 72% | 5317 | 71.60% |
| Major organ dysfunction | ||||
| Respiratory | 133631 | 8.50% | 2701 | 36.40% |
| Hematological | 92659 | 5.90% | 804 | 10.80% |
| Hepatic | 11188 | 0.70% | 185 | 2.50% |
| Neurological | 107472 | 6.80% | 1492 | 20.10% |
| Metabolic | 26632 | 1.69% | 498 | 6.71% |
| Renal | 137728 | 8.74% | 1322 | 17.82% |
| Cardiovascular | 55154 | 3.50% | 555 | 7.48% |
| Outcome | ||||
| In hospital mortality | 210531 | 13.40% | 1937 | 26.10% |
SDH: Sub-Dural Hematoma/*: Some Data is missing.