Characteristics of patients without and with cognitive decline prestroke in the Helsinki Stroke Aging Memory Study (SAM) Cohort (n=337)
| Characteristic | No cognitive decline prestroke (n=306) | Cognitive decline prestroke (n=31) | All (n=337) | p Value |
|---|---|---|---|---|
| Mean age (SD) | 69.9 (7.4) | 72.9 (9.9) | 70.2 (7.7) | 0.0363 |
| Female sex (%) | 149 (48.7) | 19 (61.3) | 168 (49.9) | 0.1813 |
| Low education (%) | 78 (26.2) | 14 (45.2) | 92 (28.0) | 0.0250 |
| Risk factor for stroke: | ||||
| Arterial hypertension | 149 (48.7) | 16 (51.6) | 165 (49.0) | 0.7566 |
| Diabetes | 73 (23.9) | 6 (19.4) | 79 (23.4) | 0.5729 |
| Cardiac failure | 59 (19.3) | 10 (32.3) | 69 (20.5) | 0.0899 |
| Atrial fibrillation | 48 (15.7) | 8 (25.8) | 56 (16.6) | 0.1492 |
| History of myocardial infarction | 59 (19.3) | 3 (9.7) | 62 (18.4) | 0.1885 |
| High total cholesterol | 56 (18.3) | 3 (9.7) | 59 (17.5) | 0.2286 |
| Smoking; history or current | 157 (51.3) | 13 (41.9) | 170 (50.5) | 0.3200 |
| Alcohol use (at least once a week) | 81 (26.6) | 9 (29.0) | 90 (26.8) | 0.7669 |
| None of the above | 17 (5.6) | 0 (0.0) | 17 (5.1) | 0.1766 |
| History of previous CVD: | ||||
| Transient ischaemic attack | 42 (13.7) | 2 (6.5) | 44 (13.1) | 0.2520 |
| Ischaemic stroke | 55 (18.0) | 15 (48.4) | 70 (20.8) | 0.0000 |
| Subarachnoidal haemorrhage | 4 (1.3) | 1 (3.2) | 5 (1.5) | 0.3998 |
| Intracerebral haemorrhage | 3 (1.0) | 0 (0.0) | 3 (0.9) | 0.5797 |