我国18岁以上居民高血压患病率的区间估计

目的估计我国18岁以上居民的高血压患病率及其95%的可信区间。方法对复杂样本加权调整,使用SUDAAN 10.0.1软件,计算我国18岁以上居民的高血压患病率,并用泰勒级数法估计其方差和95%可信区间。结果我国18岁以上居民的高血压患病率及其95%可信区间为19.14%（18.15%～20.12%）,平均收缩压及其95%可信区间为120.0 mmHg（119.4～120.6 mmHg）,平均舒张压为76.4 mmHg,95%可信区间为76.0～76.8 mmHg。结论简单随机抽样的公式不适用于复杂抽样的数据点估计和区间估计值,应该根据具体的抽样设计来估计。同时,对复杂抽样数据进行抽样权重调整可以避免结果偏倚。

Interval estimation of the hypertension prevalence among person aged over 18 years in China

Objective To estimate the hypertension prevalence among person aged over18 years in China and its 95% confidence interval.Methods SUDAAN 10.0.1 was used to estimate the weighted hypertension prevalence among person aged over 18 years in China.And their variance and 95% confidence interval were estimated by Taylor series meth-od.Results The prevalence of hypertension among person aged over 18 years in China was 19.14%,and its 95% confi-dence interval was 18.15% to 20.12%.The average systolic blood press was 120.0 mmHg,its 95% confidence interval was 119.4 mmHg to 120.6 mmHg.The average diastolic blood press was 76.4 mmHg,its 95% confidence interval was 76.0 mmHg to 76.8 mmHg.Conclusion The formulas of simple random sampling were not suitable for the point and in-terval estimators of complex sample.They could be estimated by sampling design.And weighted estimator for complex sam-pling could avoid the biased estimator for results.