Research suggests lowering blood pressure significantly reduces dementia risk in people with hypertension
- The average blood pressure in the intervention group at 48 months was 128/73 mm Hg, compared to 148/81 mm Hg in the usual care group.
- On average, systolic blood pressure decreased by 22 mm Hg and diastolic blood pressure decreased by 9 mm Hg among people in the intervention group compared to usual care.
- People in the intervention group had 15% lower risk of dementia and 16% lower risk of memory impairment compared to the group that received usual care.
- Serious adverse events, such as hospitalizations and death from all causes, were also less frequent in the intervention group.
- The trial began in May 2018 and ended in March 2023.
- The average age of study participants at enrollment was 63 years old. 61% identified as women, and 39% identified as men; researchers observed similar reductions in blood pressure and dementia risk in women and men.
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