Table 3 Characteristic of hospitalized patients with aSAH
Characteristics | Total | Frailty | Non-frailty | P-value |
|---|---|---|---|---|
Demographics | ||||
 Age, mean ± SE | 54.8 ± 0.1 | 58.0 ± 0.3 | 54.4 ± 0.1 | < 0.001 |
  18–45 | 5001 (24.4) | 394 (17.2) | 4607 (25.3) | < 0.001 |
  46–64 | 10,597 (51.6) | 1176 (51.0) | 9421 (51.7) | < 0.001 |
  ≥ 65 | 4929 (24.0) | 733 (31.8) | 4196 (23.0) | < 0.001 |
 Female, sex | 13,956 (68.0) | 1538 (66.8) | 12,418 (68.2) | 0.175 |
 Race |  |  |  | < 0.001 |
  White | 10,113 (60.1) | 1183 (62.8) | 8930 (59.7) |  |
  Black | 2778 (16.5) | 324 (17.1) | 2454 (16.5) |  |
  Hispanic | 2281 (13.5) | 205 (10.8) | 2076 (13.8) |  |
  Asian or Pacific Islander | 778 (4.6) | 65 (3.4) | 713 (4.8) |  |
Other | 890 (5.3) | 111 (5.9) | 779 (5.2) | Â |
 Household income |  |  |  | 0.004 |
  Quartile 1 | 5658 (28.3) | 678 (30.2) | 4980 (28.0) |  |
  Quartile 2 | 5235 (26.2) | 619 (27.7) | 4616 (26.0) |  |
  Quartile 3 | 4838 (24.3) | 532 (24.0) | 4306 (24.3) |  |
  Quartile 4 | 4235 (21.2) | 401 (18.0) | 3834 (21.6) |  |
 aSAH severity, mean ± SE (min-max) | 4.6 ± 0.1 (0–19.0) | 6.9 ± 0.1 (0–17.7) | 4.4 ± 0.1 (0–19.0) | < 0.001 |
 Aneurysm Treatment |  |  |  | 0.058 |
  Coiling | 12,223 (59.6) | 1422 (61.7) | 10,801 (59.4) |  |
  Microsurgical clipping | 8304 (40.4) | 881 (38.3) | 7423 (40.6) |  |
Disease/Comorbidities | ||||
 Cerebral herniation | 1166 (5.8) | 182 (7.9) | 984 (5.5) | < 0.001 |
 Cerebral edema | 3050 (14.9) | 485 (21.1) | 2565 (14.2) | < 0.001 |
 Diabetes | 2304 (11.2) | 325 (14.0) | 1979 (10.8) | < 0.001 |
 Hypertension | 12,579 (61.3) | 1518 (65.8) | 11,061 (60.7) | 0.001 |
 Peripheral vascular disorders | 1384 (6.7) | 196 (8.5) | 1188 (6.5) | < 0.001 |
 Vasospasm | 384 (1.9) | 47 (2.0) | 337 (1.8) | 0.502 |
Provider | ||||
 Hospital Bedsize |  |  |  | 0.088 |
  Small | 756 (3.5) | 79 (3.3) | 677 (3.6) |  |
  Medium | 2550 (12.6) | 241 (10.6) | 2309 (12.8) |  |
  Large | 17,031 (83.9) | 1956 (86.1) | 15,075 (83.6) |  |
 Hospital Location |  |  |  | 0.567 |
  Rural | 199 (0.9) | 17 (0.7) | 182 (1.0) |  |
  Urban | 20,138 (99.1) | 2259 (99.3) | 17,879 (99.0) |  |
 Hospital teaching status |  |  |  | 0.006 |
  Non-teaching | 2459 (11.8) | 218 (9.3) | 2241 (12.1) |  |
  Teaching | 17,878 (88.2) | 2058 (90.7) | 15,820 (87.9) |  |