首页> 美国卫生研究院文献>BMC Pediatrics >Using height-for-age differences (HAD) instead of height-for-age z-scores (HAZ) for the meaningful measurement of population-level catch-up in linear growth in children less than 5 years of age
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Using height-for-age differences (HAD) instead of height-for-age z-scores (HAZ) for the meaningful measurement of population-level catch-up in linear growth in children less than 5 years of age

机译:使用年龄高度差异(HAD)代替年龄高度z分数(HAZ)来有意义地测量5岁以下儿童的线性增长中的人口水平追赶

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摘要

BackgroundEvidence from studies conducted in nutritionally deprived children in low- and middle-income countries (LIMC) in past decades showed little or no population-level catch-up in linear growth (mostly defined as reductions in the absolute height deficit) after 2 years of age. Recent studies, however, have reported population-level catch-up growth in children, defined as positive changes in mean height-for-age z-scores (HAZ). The aim of this paper was to assess whether population-level catch-up in linear growth is found when height-for-age difference (HAD: child’s height compared to standard, expressed in centimeters) is used instead of HAZ. Our premise is that HAZ is inappropriate to measure changes in linear growth over time because they are constructed using standard deviations from cross-sectional data.
机译:背景在过去的几十年中,对低收入和中等收入国家(LIMC)的营养匮乏儿童进行的研究证据表明,线性增长(主要定义为绝对身高赤字的减少)很少或根本没有人口水平的追赶。年龄。然而,最近的研究报告了儿童的人口水平追赶性增长,定义为平均年龄高度z分数(HAZ)的正向变化。本文的目的是评估当使用年龄间的身高差异(HAD:儿童的身高与标准身高,以厘米为单位)代替HAZ时,是否发现了线性增长中的人口水平追赶。我们的前提是,HAZ不适合测量线性增长随时间的变化,因为它们是使用横截面数据的标准偏差构造的。

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