Association of Prenatal Participation in a Public Health Nutrition Program With Healthy Infant Weight Gain
Association of Prenatal Participation in a Public Health Nutrition Program With Healthy Infant Weight Gain
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DOI：
10.2105/ajph.2013.301793
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发表时间：
2014-02-01
影响因子：
12.7
通讯作者：
Davison, Kirsten K.
中科院分区：
文献类型：
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作者：
Edmunds, Lynn S.;Sekhobo, Jackson P.;Davison, Kirsten K.
目标。我们检验了早期参加妇女、婴儿和儿童特殊补充营养计划（WIC）与降低婴儿体重快速增加（RIWG）风险相关的假设。我们使用了2008年至2009年在纽约州WIC登记的母婴对纵向队列（n = 155790），并估计了RIWG的几率，定义为12个月体重年龄比z分数的变化大于。67，比较母亲在妊娠第一、第二或第三个月登记的婴儿与推迟到产后登记的婴儿。在调整了潜在的混杂因素后，孕早期入组的孕妇与产后入组的孕妇相比，其婴儿发生环孕综合征的几率（优势比[OR] = 0.76； 95%可信区间[CI] = 0.74, 0.79）显著降低。出生体重/胎龄z评分（OR = 0.33; 95% CI = 0.32, 0.33）降低了产前与产后入组的估计（OR = 0.92; 95% CI = 0.88, 0.95；妊娠早期入组）。结果表明，产前WIC参与与出生至1岁之间的RIWG风险降低有关。改善胎龄出生体重可能是通过早期产前WIC登记预防RIWG的机制。
Objectives. We tested the hypothesis that early enrollment in the Special Supplemental Nutrition Program for Women, Infants and Children (WIC) is associated with a reduced risk of rapid infant weight gain (RIWG).Methods. We used a longitudinal cohort of mother-infant pairs (n = 157 590) enrolled in WIC in New York State from 2008 to 2009 and estimated the odds of RIWG, defined as a 12-month change in weight-for-age z score of more than .67, comparing infants of mothers enrolled during the first, second, or third trimester of pregnancy with those who delayed enrollment until the postpartum period.Results. After adjusting for potential confounders, the odds of RIWG (odds ratio [OR] = 0.76; 95% confidence interval [CI] = 0.74, 0.79) were significantly lower for infants of women enrolling during the first trimester versus postpartum. Birth weight-for-gestational-age z score (OR = 0.33; 95% CI = 0.32, 0.33) attenuated the estimate of prenatal versus postpartum enrollment (OR = 0.92; 95% CI = 0.88, 0.95; first-trimester enrollees).Conclusions. The results demonstrate that prenatal WIC participation is associated with reduced risk of RIWG between birth and age 1 year. Improved birth weight for gestational age may be the mechanism through which early prenatal WIC enrollment protects against RIWG.