Studies assessing incidence and prevalence of dementia and mild cognitive impairment in patients with lacunar stroke
| No of studies | No of patients | Pooled risk or proportion (95% CI) (%) | I2 (95% CI) (%) | |
|---|---|---|---|---|
| Incidence of dementia (only previously non-demented patients included) | ||||
| 1st stroke | 1 | 21 | 10 (2 to 27) | n/a |
| 1st or recurrent stroke | 6 | 397 | 12 (6 to 18) | 66.4 (0 to 89) |
| Prevalence of dementia (where the authors specified that they included patients who had dementia prior to the stroke) | ||||
| 1st stroke | 2 | 987 | 21 (1 to 55) | n/a |
| 1st or recurrent stroke | 6 | 1421 | 20 (9 to 33) | 95.6 (93.4 to 96.8) |
| Prevalence of dementia (including studies where the methods were unclear and the authors did not state whether they included patients with dementia) | ||||
| 1st stroke | 4 | 1262 | 20 (8 to 36) | 95.9 (93 to 97) |
| 1st or recurrent stroke | 9 | 1777 | 18 (9.6 to 30) | 95.7 (95 to 96.7) |
| Incidence of MCI or dementia (only previously cognitively intact patients included) | ||||
| 1st stroke | 1 | 64 | 45 (34 to 58) | n/a |
| 1st or recurrent stroke | 4 | 275 | 37 (23 to 53) | 85.5 (54 to 93) |
| Prevalence of MCI or dementia (where the authors specifically included prior dementia and MCI) | ||||
| No studies | ||||
| Prevalence of MCI or dementia (including studies where the methods were unclear) | ||||
| 1st stroke | 2 | 120 | 34 (0 to 9) | n/a |
| 1st or recurrent stroke | 4 | 266 | 38 (13 to 66) | 96 (93.3 to 97.3) |
MCI, mild cognitive impairment.