我国成年人单纯性收缩期高血压患病率调查

目的评估我国成年人单纯性收缩期高血压的患病率及其人群分布。方法亚洲国际心血管病合作研究(InterASIA)于2000至2001年进行,应用多阶段抽样方法选择15540名35～74岁成年人为代表性样本,分析单纯性收缩期高血压和其他亚型高血压的患病率。应用标准问卷调查高血压病史及其治疗情况。血压值为休息5min后3次坐位血压测量值的平均值。未接受抗高血压治疗的个体通过以下标准确定高血压亚型单纯性收缩期高血压为收缩压≥140mmHg(1mmHg=0133kPa),舒张期血压<90mmHg;单纯性舒张期高血压为收缩压<140mmHg,舒张压≥90mmHg,而收缩期和舒张期联合性高血压为收缩压≥140mmHg,舒张压≥90mmHg。结果15540名35～74岁成年人样本中,76%(1181人)患有单纯性收缩期高血压,74%(1150人)患有收缩期和舒张期联合性高血压,而44%(683人)患有单纯性舒张期高血压。收缩期高血压的患病率随着年龄的增长而增加,且老年女性比老年男性更为常见。南方与北方地区的单纯性收缩期高血压患病率没有明显差异;农村单纯性收缩期高血压患病率高于城市。结论我国收缩期高血压患病率较高,应引起重视。

Prevalence of isolated systolic hypertension in Chinese adult population

OBJECTIVE: To evaluate prevalence of isolated systolic hypertension and other subtypes of hypertension, as well as their distribution in Chinese adults. METHODS: A cross-sectional survey was conducted in the mainland China during 2000-2001 with a multistage cluster sampling to select a nationally representative sample of 15,540 Chinese adults aged 35-74, by InterASIA project. Hypertension subtypes were defined among individuals not receiving antihypertensive therapy as follows: isolated systolic hypertension as a systolic blood pressure > or = 140 mm Hg and a diastolic blood pressure < 90 mm Hg, isolated diastolic hypertension as a systolic pressure < 140 mm Hg and a diastolic pressure > or = 90 mm Hg, and combined systolic/diastolic hypertension as a systolic pressure > or = 140 mm Hg and a diastolic pressure > or = 90 mm Hg. Blood pressure for each subject was measured for three readings at sitting position after rest for at least five minutes and an average reading was recorded. A standardized structured questionnaire was used to collect history of hypertension and antihypertensive treatment. RESULTS: Overall, 7.6% (1,181 cases) of adults had isolated systolic hypertension, 7.4% (1,150 cases) combined systolic/diastolic hypertension and 4.4% (683 cases) isolated diastolic hypertension in the sample of 15,540 adults at age 35-74. Prevalence of systolic hypertension increased with age, and was more common in the older women than in the older men. There was no significant difference in prevalence of isolated systolic hypertension between north and south China, but, rural residents had a higher prevalence than urban residents. CONCLUSION: There existed a higher prevalence of systolic hypertension in China, to which enough attention should be paid.