孕中期补充复合维生素片与新生儿出生体格关系的研究

摘要

目的 分析孕中期起补充复合维生素片与新生儿出生体重和身长的关系.方法 调查2010年2月-2011年6月上海交通大学医学院附属瑞金医院产科门诊做产前检查的无妊娠合并症和并发症的孕妇及其分娩的新生儿各280例.实验组孕妇在孕中期起开始补充复合维生素片(爱乐维)1片直至分娩,正常饮食,无专业配膳.对照组孕妇正常饮食,无专业配膳.比较对照组与实验组新生儿出生体重和身长.结果 实验组新生儿中巨大儿多于对照组,两组比较差异有统计学意义(P＜0.05)；低体重儿则少于对照组,两组比较差异有统计学意义(P＜0.05).两组新生儿的身长比较差异无统计学意义(P=0.20).结论 孕中期起补充复合维生素片对新生儿出生体重有影响,但对出生身长则无影响.在加强孕期营养健康指导时,应合理补充各种维生素片,密切监控孕妇的各项安全指标,有利于保障新生儿安全.%Objective To analyze the relationship between vitamin supplementation from the second trimester of pregnancy and neonatal birth weight and length. Methods A total of 280 gravidas without pregnancy complications who received prenatal care in the obstetrics in our hospital and 280 neonates they delivered were recruited from February 2010 to June 2011. The gravidas in the study group were supplemented with vitamin tablets ( Ailewei) one pill each day from the second trimester of pregnancy to delivery with normal diet. The gravidas in the control group were on normal diet. Neonatal birth weight and length in the two groups were compared. Results All the neonatal birth weight and length were analyzed. The frequency of fetal macrosomia in the study group was higher than that in the control group (P < 0.05), but the number of neonates with low birth weight was less(P <0. 05). There was no significant difference in neonatal length between the two groups (P = 0. 20). Conclusion Supplementation of vitamin tablets from the second trimester of pregnancy produces an effect on neonatal birth weight but none on neonatal length. Health education of prenatal nutrition should be strengthened, supplementation should be rational, and safety indices during pregnancy should be monitored closely.