Journal
HYPERTENSION
Volume 73, Issue 4, Pages 803-811Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/HYPERTENSIONAHA.118.12305
Keywords
aging; blood pressure; executive function; memory; risk factor
Categories
Funding
- European Regional Development Fund via OP-Zuid
- Province of Limburg
- Dutch Ministry of Economic Affairs [31O.041]
- Stichting De Weijerhorst (Maastricht, the Netherlands)
- Pearl String Initiative Diabetes (Amsterdam, the Netherlands)
- Cardiovascular Research Institute Maastricht School for Cardiovascular Diseases (Maastricht, the Netherlands)
- Stichting Annadal (Maastricht, the Netherlands)
- Health Foundation Limburg (Maastricht, the Netherlands)
- Janssen-Cilag B.V. (Tilburg, the Netherlands)
- Novo Nordisk Farma B.V. (Alphen aan den Rijn, the Netherlands)
- Sanofi-Aventis Netherlands B.V. (Gouda, the Netherlands)
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An increasing number of individuals will face age-related cognitive difficulties because life expectancy has increased. It is, therefore, important to identify modifiable risk factors for cognitive impairment. Very short-term to mid-term blood pressure variability (BPV) may be such a factor because it may cause cerebral ischemia. To this end, we investigated whether greater systolic and diastolic BPV are cross-sectionally associated with memory function (n=1804), information processing speed (n=1793), and executive function (n=1780) in 40- to 75-year-old individuals from The Maastricht Study. A composite BPV-index was derived by standardizing within-visit, 24-hour, and 7-day BPV. We performed linear regression with adjustments for age, sex, educational level, 24-hour systolic or diastolic pressure, and cardiovascular risk factors. We found that a 1-SD greater systolic BPV was not associated with information processing speed (beta [SD difference], -0.10; 95% CI, -0.14 to 0.06), or executive function (-0.09; 95% CI, -0.20 to 0.02) but was marginally associated with lower memory function (-0.11; 95% CI, -0.21 to 0.00). A 1-SD greater diastolic BPV was associated with lower information processing speed (-0.10; 95% CI, -0.20 to -0.00) and executive function (-0.12; 95% CI, -0.22 to -0.01) and marginally associated with lower memory function (-0.09; 95% CI, -0.20 to 0.01). These effects on cognitive performance are equivalent to approximate to 3 additional years of aging. In conclusion, greater very short-term to mid-term diastolic and, to a lesser extent, systolic BPV may be a modifiable risk factor for cognitive deterioration in 40- to 75-year-old, community-dwelling individuals.
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