Journal
STROKE
Volume 40, Issue 8, Pages 2859-2861Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/STROKEAHA.108.546499
Keywords
diastolic blood pressure; home blood pressure measurement; mean blood pressure; pulse pressure; stroke; systolic blood pressure
Categories
Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [15790293, 16590433, 17790381, 18390192, 18590587, 19590929, 19790423]
- Ministry of Health, Labour and Welfare, Health and Labor Sciences [H17-Kenkou-007, H18-Junkankitou [Seishuu]-Ippan-012, H20-Junkankitou [Seishuu]-Ippan-009, 013]
- Japan Society for the Promotion of Science (JSPS) fellows [16.54041, 18.54042, 19.7152, 20.7198, 20.7477, 20.54043]
- Ministry of Health, Labour 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 [16590433] Funding Source: KAKEN
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Background and Purpose-The purpose of this prospective cohort study was to investigate associations between stroke and blood pressure (BP) indices (systolic BP [SBP], diastolic BP [DBP], mean BP, and pulse pressure [ PP]) determined by home BP measurement. Methods-Associations between stroke and BP indices were examined in a rural Japanese population. Home BP data of 2369 subjects (40% men) >= 35 years of age (mean, 59 years) without a history of stroke were obtained. Associations between stroke and each index were determined using Cox proportional hazards regression and the likelihood ratio (LR)test. Results-During follow-up (mean, 11.7 years), 238 strokes occurred. The LR test showed that SBP and mean BP were significantly more strongly associated with total and ischemic stroke than DBP and PP (LR chi(2) >= 9.3, P < 0.01 for SBP/mean BP, LR chi(2) <= 3.8, P >= 0.05 for DBP/PP). SBP tended to be more strongly associated with total/ischemic stroke than mean BP (LR chi(2) = 3.8, P = 0.05 for SBP, LR chi(2) <= 0.2, P>0.6 for mean BP). PP tended to be slightly more strongly associated with ischemic stroke than DBP (LR chi(2) = 7.5, P<0.01 for DBP, LR chi(2)=9.3, P<0.01 for PP), whereas DBP was significantly more strongly associated with hemorrhagic stroke than PP (LR chi(2) = 9.2, P<0.01 for DBP, LR chi(2)=2.5, P=0.01 for PP). Conclusion-PP obtained from home BP measurements was weakly associated with stroke, whereas SBP showed the strongest association. Additionally, DBP and PP may be associated with different stroke types. (Stroke. 2009; 40: 2859-2861.)
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