Letter by Koh Regarding Article, “Day-to-Day Blood Pressure Variability and Risk of Dementia in a General Japanese Elderly Population: The Hisayama Study”
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To the Editor:
Dr Oishi et al investigated the association of day-to-day blood pressure variability assessed by home blood pressure measurement with the development of dementia and reported that increased day-to-day blood pressure variability is, independently of average home blood pressure, a significant risk factor for the development of all-cause dementia, vascular dementia, and Alzheimer disease in the general elderly Japanese population.1
The number of people with dementia is projected to increase, mainly driven by improved life expectancy. Cardiometabolic syndrome and smoking are major risk factors for cardiovascular diseases, and dementia, as well.
The role of blood pressure (BP) variability on morbidity and mortality has been investigated recently. Also, there have been …