Characteristics of Medicare beneficiaries who had ischemic stroke or transient ischemic attack, stratified by respiratory failure (5% national sample)
| Characteristics* | Respiratory failure (n=1403) | No respiratory failure (n=97 678) |
| Age, years, mean (SD) | 77.1 (7.7) | 79.3 (8.3) |
| Female | 703 (50.1) | 57 072 (58.4) |
| Race | ||
| White | 1039 (74.1) | 82 834 (84.8) |
| Black | 264 (18.8) | 10 029 (10.3) |
| Other | 100 (7.1) | 4815 (4.9) |
| Charlson comorbidities, number, mean (SD) | 3.7 (1.8) | 2.9 (1.6) |
| NIHSS score, median (IQR)† | 12 (5–19) | 4 (1–8) |
| Intravenous thrombolysis | 116 (8.3) | 4395 (4.5) |
| Mechanical thrombectomy | 88 (6.3) | 810 (0.8) |
| Cardioversion | 16 (1.1) | 104 (0.1) |
| Atrial fibrillation/flutter | 721 (51.4) | 36 104 (37.0) |
| Coronary heart disease | 890 (63.4) | 50 798 (52.0) |
| Hypertension | 1353 (96.4) | 93 065 (95.3) |
| Diabetes mellitus | 864 (61.6) | 50 118 (51.3) |
| Congestive heart failure | 678 (48.3) | 31 068 (31.8) |
| Peripheral vascular disease | 551 (39.3) | 31 496 (32.2) |
| Chronic kidney disease | 533 (38.0) | 28 003 (28.7) |
| Chronic obstructive pulmonary disease | 605 (43.1) | 32 552 (33.3) |
| Valvular heart disease | 457 (32.6) | 31 370 (32.1) |
| Infective endocarditis | 14 (1.0) | 243 (0.3) |
| Tobacco use | 300 (21.4) | 18 128 (18.6) |
| Alcohol abuse | 245 (17.5) | 13 429 (13.8) |
*Data are presented as number (%) unless otherwise specified.
†Data available for 5687 patients.
NIHSS, National Institutes of Health Stroke Scale.