Table 1.
Patient demographics and comorbidity
| Prestroke‐independent patients (mRS 0‐2) | Prestroke‐dependent patients | ||||||
|---|---|---|---|---|---|---|---|
|
Total n = 14 148 |
Age ≤ 77 n = 8408 |
Age ≥ 78 n = 5740 |
Total n = 5899 |
Moderate (mRS 3) n = 3300 |
Moderately severe (mRS 4) n = 1889 |
Severe (mRS 5) n = 710 |
|
| Age, mean (SD), years | 73.3 (11.7) | 66.0 (9.2) | 84.1 (4.4) | 83.7 (8.8) | 83.7 (8.8) | 83.8 (8.7) | 83.6 (9.3) |
| Age, median (IQR), years | 75 (16) | 68 (11) | 83 (7) | 85 (10) | 86 (10) | 85 (11) | 85 (11) |
| Male sex | 8167 (57.7) | 5323 (63.3) | 2844 (49.5) | 2283 (38.7) | 1228 (37.2) | 803 (42.5) | 252 (35.5) |
| Total comorbidity burden | |||||||
| None | 209 (20.6) | 2201 (26.2) | 708 (12.3) | 412 (7.0) | 254 (7.7) | 122 (6.5) | 36 (5.1) |
| Low | 4014 (28.4) | 2510 (29.9) | 1504 (26.2) | 953 (16.2) | 581 (17.6) | 261 (13.8) | 111 (15.6) |
| Moderate | 5241 (37.0) | 2817 (33.5) | 2424 (42.2) | 2439 (41.3) | 1385 (42.0) | 790 (41.8) | 264 (37.2) |
| High | 1984 (14.0) | 880 (10.5) | 1104 (19.2) | 2095 (35.5) | 1080 (32.7) | 790 (37.9) | 299 (42.1) |
| Selected comorbidities | |||||||
| Atrial fibrillation | 3564 (25.2) | 1492 (17.7) | 2072 (36.1) | 2509 (42.5) | 1410 (42.7) | 781 (41.3) | 318 (44.8) |
| Chronic kidney failure | 336 (2.4) | 177 (2.1) | 159 (2.8) | 285 (4.8) | 150 (4.5) | 100 (5.3) | 35 (4.9) |
| COPD | 514 (3.6) | 306 (3.6) | 208 (3.6) | 364 (6.2) | 221 (6.7) | 103 (5.5) | 40 (5.6) |
| Congestive heart failure | 1059 (7.5) | 450 (5.4) | 609 (10.6) | 1256 (21.3) | 648 (19.6) | 448 (23.7) | 160 (22.5) |
| Dementia | 206 (1.5) | 74 (0.9) | 132 (2.3) | 760 (12.9) | 256 (7.8) | 316 (16.7) | 188 (26.5) |
| Diabetes | 2925 (20.7) | 1843 (21.9) | 1082 (18.9) | 1454 (24.6) | 739 (22.4) | 512 (27.1) | 203 (28.6) |
| Hypertension | 8680 (61.4) | 4718 (56.1) | 3962 (69.0) | 4122 (69.9) | 2340 (70.9) | 1329 (70.4) | 453 (63.8) |
| Myocardial infarction | 709 (5.0) | 360 (4.3) | 349 (6.1) | 494 (8.4) | 269 (8.2) | 172 (9.1) | 53 (7.5) |
| Previous stroke | 2310 (16.4) | 1267 (15.1) | 1043 (18.3) | 2071 (35.4) | 984 (30.0) | 764 (40.8) | 322 (45.7) |
Data presented as no. (percent) if not indicated otherwise. Differences between groups were statistically significant for all variables (P < .05).
Abbreviations: COPD, chronic obstructive pulmonary disease; IQR, interquartile range; mRS, modified Rankin scale; SD, standard deviation.