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Comparison of blood pressure-associated risk of intracerebral hemorrhage and subarachnoid hemorrhage: Korea Medical Insurance Corporation study

 Hyeon Chang Kim  ;  Chung Mo Nam  ;  Sun Ha Jee  ;  Il Suh 
 HYPERTENSION, Vol.46(2) : 393-397, 2005 
Journal Title
Issue Date
Adult ; Antihypertensive Agents/therapeutic use ; Blood Pressure ; Cerebral Hemorrhage/etiology* ; Female ; Humans ; Hypertension/complications* ; Hypertension/drug therapy ; Hypertension/physiopathology ; Male ; Middle Aged ; Prospective Studies ; Risk ; Stroke/etiology* ; Stroke/prevention & control ; Subarachnoid Hemorrhage/etiology*
blood pressure ; risk factors
Intracerebral hemorrhage and subarachnoid hemorrhage have different pathogeneses and risk factor profiles. However, little information is available on the difference between intracerebral and subarachnoid hemorrhages in relation to blood pressure. We prospectively investigated the relationships between blood pressure and risks of stroke subtypes. We measured blood pressure and other cardiovascular risk factors in 100 147 men and 59 558 women 35 to 59 years of age in 1990 and 1992. Outcomes were fatal and nonfatal events of stroke and its subtypes from 1993 to 2002. Independent relationships between baseline blood pressure and stroke subtypes were assessed using Cox’s proportional hazard models. During the 10 years, 1714 ischemic and 1159 hemorrhagic strokes (742 intracerebral and 308 subarachnoid hemorrhages) occurred. Blood pressure was related more closely with hemorrhagic stroke than ischemic stroke, and the difference was more prominent in women. Among the subtypes of hemorrhagic stroke, intracerebral hemorrhage was more closely related with blood pressure than subarachnoid hemorrhage. For each 20 mm Hg increase in systolic blood pressure, adjusted relative risks of ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage were 1.79 (95% confidence interval, 1.68 to 1.90), 2.48 (2.30 to 2.68), and 1.65 (1.38 to 1.97) in men, and 1.64 (1.42 to 1.89), 3.15 (2.61 to 3.80), and 2.29 (1.82 to 2.89) in women, respectively. In conclusion, blood pressure is more closely related with intracerebral hemorrhage than subarachnoid hemorrhage, thus proportion of intracerebral hemorrhage in hemorrhagic stroke may affect the association between blood pressure and hemorrhagic stroke. Our data also emphasize the importance of blood pressure control for the prevention of stroke, especially in countries with a high incidence of intracerebral hemorrhage.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학교실) > 1. Journal Papers
4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
Yonsei Authors
Kim, Hyeon Chang(김현창) ORCID logo https://orcid.org/0000-0001-7867-1240
Nam, Chung Mo(남정모) ORCID logo https://orcid.org/0000-0003-0985-0928
Suh, Il(서일) ORCID logo https://orcid.org/0000-0002-9689-7849
Jee, Sun Ha(지선하) ORCID logo https://orcid.org/0000-0001-9519-3068
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