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Mild Cognitive Impairment (MCI)

Incidence Trends

These results show how patients’ cognitive status changed at 3, 6, and 12 months after a stroke.

Bar chart of the rates of recovery, dementia, and mild cognitive impairment at 3, 6, and 12 months after stroke01020304050607080192122Recovery1188Dementia726251Mild cognitive impairment3 months6 months12 months
Prevalence rate of post-stroke dementia (%): recovery, dementia, and mild cognitive impairment, from Rasquin et al. (2004)
Outcome 3 months 6 months 12 months
Recovery about 19% about 21% about 22%
Dementia about 11% about 8% about 8%
Mild cognitive impairment about 72% about 62% about 51%
  • The most common outcome after stroke is mild cognitive impairment, and it becomes less common over time.
  • The share of patients whose cognitive function has recovered grows little by little over time.

Values are approximate, read from the graph in the original booklet.