Evid Based Nurs 8:25 doi:10.1136/ebn.8.1.25
  • Prognosis

Having a stroke increased the risk of developing dementia in older people

 Q In older people, does having a stroke increase the risk of developing dementia?



nested case-control study of patients who had a stroke and 5 randomly allocated age and sex matched controls followed up for ⩽10 years. Patients and controls were identified from a stroke free and dementia free inception cohort drawn from the Framingham Study and regularly examined over a 20 year period (1982–2002).


town of Framingham in Massachusetts, USA.


212 patients (mean age 79 y, 61% women) who had their first stroke at <95 years of age, were free from dementia at the time, survived the stroke, and were available for evaluation 6 months after the index stroke. The controls were required to be alive, free from stroke and dementia, and have ⩾6 months of follow up subsequent to the date of stroke in their …

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