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Associations between lower systolic blood pressure threshold, Alzheimer’s disease and vascular dementia among very old adults

Increasing evidence supports the contribution of hypertension to the risk of Alzheimer’s disease (AD) and vascular dementia (VaD). The objective of this paper is to examine whether the risk of AD and VaD is associated with a lower threshold of systolic blood pressure (SBP) than the traditional level of ≥140 mmHg.