Growth recovery and faltering through early adolescence in low- and middle-income countries: Determinants and implications for cognitive development
Growth recovery and faltering through early adolescence in low- and middle-income countries: Determinants and implications for cognitive development
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DOI：
10.1016/j.socscimed.2017.02.031
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发表时间：
2017-04-01
影响因子：
5.4
通讯作者：
Woldehanna, Tassew
中科院分区：
文献类型：
--
作者：
Georgiadis, Andreas;Benny, Liza;Woldehanna, Tassew
以发育迟缓衡量的儿童长期营养不良在低收入和中等收入国家普遍存在，是儿童发展的主要威胁之一。虽然发育迟缓及其对认知发展的影响被认为在幼儿期之后是不可逆转的，但文献中对此缺乏共识，因为有一些证据表明发育迟缓可以恢复，而且这种恢复可能与认知的改善有关。然而，关于增长恢复的驱动因素以及与认知发展相关的恢复方面，我们所知甚少。在本文中，我们调查的因素与生长恢复和蹒跚通过12岁和影响的发病率，时间，和持久性婴儿期后恢复发育迟缓认知发展的纵向数据来自埃塞俄比亚，印度，秘鲁和越南。我们发现，与幼儿期前后和不同国家的加速增长最系统相关的因素包括母亲的身高、家庭生活水平和冲击、社区工资、食品价格和垃圾收集。我们的研究结果表明，婴儿期后从发育迟缓中恢复更有可能与各国更高的成就分数系统性相关，当它持续存在时，儿童中期的生长轨迹和认知成就之间的关联不会持续到各国的青春期早期。总体而言，我们的研究结果表明，儿童早期后的生长是对家庭和社区环境的变化作出反应，儿童早期后的生长促进可能会改善儿童的认知发展。(C)2017作者爱思唯尔有限公司出版
Child chronic undernutrition, as measured by stunting, is prevalent in low- and middle-income countries and is among the major threats to child development. While stunting and its implications for cognitive development have been considered irreversible beyond early childhood there is a lack of consensus in the literature on this, as there is some evidence of recovery from stunting and that this recovery may be associated with improvements in cognition. Less is known however, about the drivers of growth recovery and the aspects of recovery linked to cognitive development. In this paper we investigate the factors associated with growth recovery and faltering through age 12 years and the implications of the incidence, timing, and persistence of post-infancy recovery from stunting for cognitive development using longitudinal data from Ethiopia, India, Peru, and Vietnam. We find that the factors most systematically associated with accelerated growth both before and after early childhood and across countries include mother's height, household living standards and shocks, community wages, food prices, and garbage collection. Our results suggest that post-infancy recovery from stunting is more likely to be systematically associated with higher achievement scores across countries when it is persistent and that associations between growth trajectories and cognitive achievement in middle childhood do not persist through early adolescence across countries. Overall, our findings indicate that growth after early childhood is responsive to changes in the household and community environments and that growth promotion after early childhood may yield improvements in child cognitive development. (C) 2017 The Authors. Published by Elsevier Ltd.