Guo X, et al. - In a large population of women followed over 44 years, researchers studied the risk of dementia before and after stroke. From 1968 to 2012, a population sample of 1460 women without stroke or dementia at baseline was followed over 44 years. From neuropsychiatric examinations, key-informant interviews, hospital registry, and medical records, information on stroke and dementia was obtained. In women, the age-specific incidence of the stroke and dementia was comparable. Both before and after stroke, women with stroke had increased risk for dementia. They found that the increased risk of dementia continued more than 11 years after the stroke. The study findings might have important implications for understanding the link between stroke and dementia, for the prevention and treatment of dementia and stroke, and for the classification of subtypes of dementia disorders.