Age differences in the impact of nutritional supplementation on growth.
Age differences in the impact of nutritional supplementation on growth.
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DOI：
10.1093/jn/125.suppl_4.1051s
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发表时间：
1995-04
期刊：
影响因子：
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通讯作者：
D. Schroeder;R. Martorell;J. Rivera;M. Ruel;J. Habicht
中科院分区：
文献类型：
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作者：
D. Schroeder;R. Martorell;J. Rivera;M. Ruel;J. Habicht
补充喂养计划在发展中国家很常见。然而，这些项目往往无法证明对儿童成长的影响，可能是因为它们往往会惠及年龄较大的儿童。这项研究考察了营养补充对1208名危地马拉农村儿童从出生到7岁的身长和体重年增长率的影响。一系列多元线性回归模型被用来控制初始体型、腹泻疾病、家庭饮食、社会经济地位和性别。在生命的第一年，每100千卡/天(418千焦耳)的补充剂与大约9毫米的额外长度增加和350克的额外体重增加相关；在生命的第二年，这种益处减少到大约5毫米的长度增加和250克的体重增加。在24到36个月龄之间，补充剂只对长度有显著影响。营养补充剂对3-7岁儿童的生长没有影响。如果补充剂摄入量表示为推荐摄入量的百分比，或者增长表示为预期摄入量的百分比，则模式相同。营养补充剂对生长的这些影响与该人群的生长速度和生长缺陷最大的年龄相吻合。
Supplementary feeding programs are common in developing countries. These programs often cannot demonstrate an impact on child growth, however, possibly because they tend to reach older children. This study examines the impact of nutritional supplementation on annual growth rates in length and weight from birth to 7 y of age in 1208 rural Guatemalan children. A series of multiple linear regression models is used to control for initial body size, diarrheal disease, home diet, socioeconomic status and gender. During the first year of life, each 100 kcal/d (418 kJ) of supplement was associated with approximately 9 mm in additional length gain and 350 g in additional weight gain; the benefit decreased to approximately 5 mm in length gain and 250 g in weight gain during the 2nd y of life. Between 24 and 36 mo of age, supplement only had a significant impact on length. There was no impact of nutritional supplementation on growth between 3 and 7 y of age. Patterns were the same if supplement intakes were expressed as a percent of recommended allowances or growth was expressed as a percent of the expected rate. These impacts of nutritional supplementation on growth coincide with the ages when growth velocities, as well as growth deficits, are greatest in this population.