How many times should blood pressure be measured at home for better prediction of stroke risk? Ten-year follow-up results from the Ohasama study
How many times should blood pressure be measured at home for better prediction of stroke risk? Ten-year follow-up results from the Ohasama study
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DOI：
10.1097/00004872-200406000-00009
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发表时间：
2004-06-01
影响因子：
4.9
通讯作者：
Imai, Y
中科院分区：
文献类型：
--
作者：
Ohkubo, T;Asayama, K;Imai, Y
目的确定最佳数量的血压自我测量在家里（家庭血压）的中风risk.Methods的预测值，我们获得了超过14个测量家庭血压从1491人年龄大于或等于40岁，没有中风的历史，在日本的一般人群，并随访后，平均10.6年。结果家庭血压的预测值随测量次数的增加而增加，以测量总血压的平均值预测值最高（平均值= 25次测量，血压每升高10 mmHg，卒中风险增加35%）。最初的家庭血压值（一次测量）显示与中风风险的关系比常规血压值更大（两次测量的平均值）（初始家庭/常规收缩压值每升高10 mmHg，卒中风险增加19/8%，结论在1 - 14次测量的范围内，家庭血压测量的数量对于增加中风风险的预测能力没有阈值，建议尽可能多的测量，优选多于14个测量，以更好地预测中风风险。应该强调的是，家庭血压比传统血压具有更强的预测能力，即使测量次数较少。(C)2004年利平科特威廉姆斯威尔金斯。
Objective To determine the optimum number of blood pressure self-measurements taken at home (home blood pressure) in relation to their predictive value for stroke risk.Methods We obtained more than 14 measurements of home blood pressure from 1491 people aged greater than or equal to 40 years without a history of stroke in the general population in Japan, and followed them up after a mean period of 10.6 years. The prognostic significance of blood pressure for stroke risk was examined using the Cox proportional hazards regression model, which was adjusted for possible confounding factors.Results The predictive value of home blood pressure increased progressively with the number of measurements, showing the highest predictive value with the average of whole measurements (mean = 25 measurements, 35% increase in the risk of stroke per 10 mmHg elevation in blood pressure). The initial home blood pressure values (one measurement) showed a significantly greater relation with stroke risk than conventional blood pressure values (mean of two measurements) (19/8% increase in the risk of stroke per 10 mmHg elevation in initial home/conventional systolic blood pressure values, respectively).Conclusions There was no threshold for the number of home blood pressure measurements within the range of 1-14 measurements for increasing the predictive power of stroke risk, suggesting that as many measurements as possible, preferably more than 14 measurements, is recommended for better prediction of stroke risk. It should be emphasized that home blood pressure has a stronger predictive power than does conventional blood pressure, even for a lower number of measurements. (C) 2004 Lippincott Williams Wilkins.