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[Study on the relationship between hypertension management and the risk of stroke at community level]
Xiao-Juan Ru1, Wen-Zhi Wang, Sheng-Ping Wu
1Capital Medicine University, Department of Neuroepidemiology, Beijing Neurosurgical Institute, Beijing 100050, China.
Insights
Community-based management for hypertension patients significantly lowers stroke incidence. Effective blood pressure control, especially below 140/90 mmHg, reduces stroke risk factors, particularly for hemorrhagic stroke.
Area of Science:
- Cardiovascular Medicine
- Public Health
- Epidemiology
Context:
- Hypertension is a major risk factor for stroke.
- Community-based management strategies are being explored to improve patient outcomes.
- Integrated Community Intervention Measures of Cerebro-vascular Diseases provided the cohort data.
Purpose:
- To evaluate the effectiveness of community-based management in reducing stroke incidence among hypertensive patients.
- To assess the impact of blood pressure control levels on stroke risk factors.
Summary:
- A cohort of 36,863 adults aged 35+ in Beijing participated in a community-based hypertension management program.
- Annual increases in hypertension management and control rates were observed, with better control achieved at lower blood pressure levels (<140/90 mmHg).
- Achieving blood pressure control significantly reduced risk factors for total, ischemic, and hemorrhagic strokes, with a notable impact on hemorrhagic stroke.
Impact:
- Community-based programs and sustained blood pressure control are crucial for reducing stroke incidence.
- Lowering blood pressure targets (<140/90 mmHg) demonstrates a quantifiable reduction in stroke risk.
- Findings support the integration of hypertension management into community health initiatives to mitigate cerebrovascular disease burden.
Objective:
To observe whether the community-based management for patients with hypertension can reduce the incidence of stroke.
Methods:
Sample of this study included 36 863 people aged 35 years or more who came from a cohort consisting three communities from Tiantan Hospital, Puren Hospital and the Gymnasium Road Hospital in Beijing, based on the surveys on the Integrated Community Intervention Measures of Cerebro-vascular Diseases. Some patients with hypertension in this cohort were followed up and under management. First-ever stroke was considered as the end-point event.
Results:
In both groups diagnosed as borderline hypertension or definite hypertension group, the rates of management and control showed an annual increase. The management rate for women was higher, but the control rate was lower (P < 0.05) than that for men. In the third year of this study, the control rate was nearly 18%. With the qualification of control rate, the risk factors of overall stroke, ischemic stroke or hemorrhagic stroke reduced gradually, and the qualification of control rate showed more effects on hemorrhagic stroke. The qualification of control rate in the three years could cause the risk factors of total stroke, ischemic stroke or hemorrhagic stroke to reduce by 25.7%, 19.1%, 27.4%, respectively. When comparing with blood pressure level at < 160/95 mm Hg (1 mm Hg = 0.133 kPa), the level of < 140/90 mm Hg could reduce the risk factors as: 12.3% to total stroke, 12.8% to ischemic stroke and 14.9% to hemorrhagic stroke.
Conclusion:
Programs as long-term followed-up and management for patients with hypertension, and control the blood pressure at low level etc. could significantly reduce the incidence of stroke.
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