期刊
AMERICAN JOURNAL OF HYPERTENSION
卷 23, 期 5, 页码 508-514出版社
OXFORD UNIV PRESS
DOI: 10.1038/ajh.2010.15
关键词
antihypertensive agents; blood pressure; home blood pressure monitoring; hypertension; population; prognosis; stroke
资金
- Ohasama Town Government, Ohasama Hospital
- Iwate Prefectural Stroke Registry
- Ministry of Education, Culture, Sports, Science, and Technology, Japan [15790293, 16590433, 17790381, 18390192, 18590587, 19590929, 19790423]
- Ministry of Health, Labor and Welfare, Health and Labor Sciences Research [H17-Kenkou-007, H18-Junkankitou [Seishuu]-Ippan-012, H20-Junkankitou [Seishuu)-Ippan-009, 013]
- Japan Society for the Promotion of Science (JSPS) [16.54041, 18.54042, 19.7152, 20.7198, 20.7477, 20.54043]
- Ministry of Health, Labor and Welfare, Japan
- Japan Atherosclerosis Prevention Fund
- Uehara Memorial Foundation
- Takeda Medical Research Foundation
- National Cardiovascular Research Grants
- Biomedical Innovation Grants
- Grants-in-Aid for Scientific Research [21390201] Funding Source: KAKEN
BACKGROUND Several observational studies have shown that treated hypertensives are characterized as having worse prognosis than nonhypertensives. However, there is little evidence based on home blood pressure (home BP) measurement. We compare the risk of stroke between untreated individuals and those taking antihypertensive medication based on home BP and casual-screening BP (casual BP) in the general population. METHODS The study included 1,690 untreated and 700 treated subjects aged years. We measured home BP and casual BP at the beginning of the study. The risk of first stroke was examined by using the Cox proportional hazards model. RESULTS During 11.9 years of follow-up, we observed 242 first-time stroke cases. Treated subjects had significantly higher risk for stroke than untreated subjects based on home BP (relative hazard (RH) = 1.48) as well as on casual BP (RH = 1.78), adjusted for systolic BP values and characteristics. When subjects were classified into six categories based on BP (optimal, normal, high normal, and grade 1-3 hypertension), RHs in treated hypertensives linearly increased (trend P < 0.01) based on home BP. However, there was no consistent association for casual BP (trend P: not significant) in treated subjects. Stroke risk was linearly increased regardless of the BP information source in untreated subjects (home BP: trend P < 0.01, casual BP: trend P < 0.01). CONCLUSION The results suggest a strong association between elevated home BP and increased risk of stroke. Home BP is a better tool to assess stroke risk, especially in treated hypertensives.
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