Journal
JOURNAL OF HYPERTENSION
Volume 31, Issue 4, Pages 680-689Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/HJH.0b013e32835ee0ca
Keywords
cohort study; elderly; masked hypertension; prognosis; white-coat hypertension
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Funding
- Institut National de Prevention et d'Education pour la Sante (INPES)
- Caisse Nationale Maladie des Travailleurs Salaries
- Direction Generale de la Sante
- MGEN
- Institut de la Longevite
- Conseil Regionaux of Aquitaine
- Conseil Regionaux of Bourgogne
- Fondation de France
- Ministry of Research-INSERM
- French National Research Agency (ANR)
- Fondation Plan Alzheimer for the Three-City study
- Fondation Plan Alzheimer
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Objective: To assess the 1-year risk of developing sustained hypertension in untreated elderly with white-coat hypertension (WCHT) or masked hypertension (MHT), and the 1-year risk of developing uncontrolled hypertension in treated elderly with office or home uncontrolled hypertension (OUHT or HUHT). Methods: We studied the 1-year risk of developing sustained or uncontrolled hypertension in a community-based cohort of 1481 individuals aged at least 73 years. The same BP device was used throughout the entire study. WCHT was defined as high blood pressure (BP) at office and normal home BP without antihypertensive intake, OUHT as high office BP and normal home BP with antihypertensive intake, MHT as high BP at home and normal office BP without antihypertensive intake, and HUHT as high home BP and normal office BP with antihypertensive intake. Sustained hypertension was defined as high office and home BP without antihypertensive intake and uncontrolled hypertension as high office and home BP with antihypertensive intake. Results: Sustained or uncontrolled hypertension at 1 year was diagnosed in 13% of participants with high office BP and in 26% of those with high home BP. Compared to participants with normal office and home BP, risk of sustained/uncontrolled hypertension was increased about three-fold in individuals with high office BP [OR = 2.9; 95% confidence interval (CI) = 1.5-5.5; P = 0.002] and about seven-fold in those with high home BP (OR = 6.8; 95% CI = 3.8-12.2; P < 0.0001). These risks were higher in individuals not treated by antihypertensive (ORWCHT = 4.3, P = 0.03; ORMHT = 16.8, P < 0.0001). Conclusion: In this community-based study, elderly individuals with high office or home BP had an increased risk of hypertension 1 year later. This risk was higher among individuals not treated by antihypertensive and particularly in those with MHT. As these high-risk individuals would be otherwise undetected our results strongly support the large use of home blood pressure measurement in the elderly.
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