Table 5.
Univariate and multivariable analyses of risk factors for death after an ischaemic stroke
| Ischaemic stroke N=19 909 |
Univariate analysis |
Multivariable analysis |
|||
|---|---|---|---|---|---|
| Alive patients n (%) |
Dead patients n (%) |
p Value | OR (95% CI) | p Value | |
| Patients | 17 295 (86.9) | 2614 (13.1) | – | – | – |
| Age group, years | |||||
| <65 | 2648 (15.3) | 212 (8.1) | – | Ref. | – |
| 65–74 | 1394 (8.1) | 66 (2.5) | 0.0003 | 1.62 (1.22 to 2.15) | 0.0009 |
| ≥75 | 13 253 (76.6) | 2336 (89.4) | <0.0001 | 3.30 (2.56 to 4.26) | <0.0001 |
| Female sex | 9780 (56.5) | 1612 (61.7) | <0.0001 | 1.18 (1.08 to 1.29) | 0.0002 |
| Comorbidity | |||||
| Lung disease | 2920 (16.9) | 784 (30.0) | <0.0001 | 1.95 (1.77 to 2.15) | <0.0001 |
| Peripheral artery disease | 1178 (6.8) | 270 (10.3) | <0.0001 | 1.32 (1.14 to 1.53) | 0.0002 |
| Renal failure | 2561 (14.8) | 570 (21.8) | <0.0001 | 1.30 (1.16 to 1.44) | <0.0001 |
| Anaemia | 2535 (14.7) | 499 (19.1) | <0.0001 | – | – |
| Cancer | 2035 (11.8) | 361 (13.8) | 0.0028 | – | – |
| Myocardial infarction | 987 (5.7) | 195 (7.5) | 0.0004 | – | – |
| Neurological diseases | 2139 (12.4) | 412 (15.8) | <0.0001 | – | – |
| Thyroid disease | 1976 (11.4) | 338 (12.9) | 0.025 | – | – |
| Medical history | |||||
| Heart failure | 3306 (19.1) | 739 (28.3) | <0.0001 | 1.28 (1.16 to 1.41) | <0.0001 |
| Other ischaemic heart disease | 2641 (15.3) | 494 (18.9) | <0.0001 | – | – |
| Abnormal cardiac conduction | 1986 (11.5) | 374 (14.3) | <0.0001 | – | – |
| Valvular disease/surgery | 1557 (9.0) | 309 (11.8) | <0.0001 | – | – |
| Hypertension | 12 475 (73.7) | 1927 (72.1) | 0.09 | – | – |
| Systemic embolism* | 451 (2.6) | 101 (3.9) | 0.003 | – | – |
*Not integrated in the multivariable regression because <5%.