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首页> 外文期刊>The journal of clinical hypertension. >Impact of the Number of Blood Pressure Measurements on Blood Pressure Classification in US Adults: NHANES 1999-2008
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Impact of the Number of Blood Pressure Measurements on Blood Pressure Classification in US Adults: NHANES 1999-2008

机译：血压测量次数对美国成年人血压分类的影响：NHANES 1999-2008

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Clinical guidelines recommend averaging ≥2 blood pressure (BP) measurements on each visit. Only one BP is measured on many clinical visits, especially if the value is <120/<80mmHg, ie, normal. The impact of this practice on accurate assignment of BP category is incompletely defined. Data were analyzed from 22,641 adults 18years and older who had 3 BP readings in the National Health and Nutrition Examination Surveys 1999-2008. BP category defined by initial measurement was compared with the category determined by mean of the first and second, first through third, and second and third readings. Among 8553 nonhypertensive patients with initial BP <120/<80 mm Hg, 2.9%, 3.3%, and 6.7%, respectively, were reclassified as prehypertensive, ie, BP 120-139/80-89 mm Hg, and two patients as stage 1 hypertension (140-159/90-99 mm Hg). In 733 treated hypertensive patients with initial BP <120/<80 mm Hg, 5.1%-8.9% were reclassified as prehypertensive and only one patient as hypertensive. Among nonhypertensive and hypertensive patients with initial BP in the prehypertensive range, 8.0%-23.6% were reclassified as normal. Among stage 1 and 2 hypertensive patients based on initial BP, 18.2%-33.5% were reclassified to lower BP categories. By multivariable logistic regression, older age and higher systolic and diastolic BP were associated with reclassification to a lower BP category. In nonhypertensive and hypertensive patients with normal initial BP values, one BP measurement appears adequate as <10% are re-classified as prehypertensive and <0.5% as hypertensive. In contrast, patients with an initial BP above normal are often reclassified to a lower category, which supports recommendations for additional measurements.
机译：临床指南建议每次就诊平均测量≥2个血压（BP）。在许多临床就诊中仅测量一个BP，尤其是当该值<120 / <80mmHg（即正常）时。这种做法对BP类别的准确分配的影响尚未完全定义。在1999-2008年美国国家健康和营养调查中，对22641名18岁及以上的成年人进行了3次血压读数的分析。将通过初始测量定义的BP类别与通过第一和第二，第一至第三以及第二和第三读数确定的类别进行比较。在8553例初始BP <120 / <80 mm Hg的非高血压患者中，分别将2.9％，3.3％和6.7％重新分类为高血压前期，即BP 120-139 / 80-89 mm Hg，其中2例为分期1高​​血压（140-159 / 90-99毫米汞柱）。在733例初始BP <120 / <80 mm Hg的高血压患者中，5.1％-8.9％被重新分类为高血压前期，仅一名患者被分类为高血压。在高血压前期血压范围内的非高血压和高血压患者中，8.0％-23.6％被重新分类为正常。在基于初始BP的1期和2期高血压患者中，18.2％-33.5％被重新分类为较低的BP类别。通过多变量logistic回归分析，年龄较大，收缩压和舒张压较高者与重新分类为较低的血压类别有关。在初始BP值正常的非高血压和高血压患者中，一次BP测量似乎足够了，因为<10％被重新分类为高血压前，<0.5％被分类为高血压。相比之下，初始BP高于正常值的患者通常会被重新分类为较低的类别，这支持进行其他测量的建议。

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