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有研究表明 ,孕妇补充锌可降低婴儿感染性疾病的发病率。为了证实出生前补锌对婴儿发育及行为的影响 ,对 1 3月龄婴儿进行了评价。将 5 5 9个孕妇随机分配至补锌组 ( 30mg/ d)和安慰剂组 (纤维素 ) ,从妊娠 4个月开始观察直至分娩。评价锌补充对怀孕结局和婴儿生长及 6个月发病率的影响。然后从完成 6个月研究的 383名婴儿中随机抽取 1 68名作为一组 ,当这组婴儿到 1 3月龄时 ,用婴儿巴氏 ( Bayley)量表来评价其精神发育 ,并测量身高和体重。研究结果显示 ,安慰剂组精神发育指数和精神运动发育指数比补锌组要高 ,但锌补充对行为及生长发育无明显影响。婴儿营养状况低下并且年龄别体重与发育水平明显相关 ,这些均被认为是补锌的某些作用。
Studies have shown that zinc supplementation in pregnant women can reduce the incidence of infectious diseases in infants. In order to confirm the effect of prenatal zinc supplementation on infant development and behavior, a 13-month-old infant was evaluated. Five hundred and ninety pregnant women were randomized to zinc supplementation (30 mg / d) and placebo (cellulose), starting from 4 months of pregnancy until delivery. To evaluate the effect of zinc supplementation on pregnancy outcomes and infant growth and morbidity at 6 months. A total of 1 68 children were randomly selected from 383 infants completing the 6-month study as a group. When the infants reached 13 months of age, the infant’s Bayley scale was used to evaluate mental development and height was measured And weight. The results showed that placebo group mental development index and mental development index higher than the zinc group, but the zinc supplementation had no significant effect on behavior and growth. Infant nutritional status is low and age-specific body weight is significantly associated with developmental levels, all of which are considered as some of the effects of zinc supplementation.