单纯补钙与喝奶对儿童生长发育及骨密度的影响分析

摘要

Objective To study the calcium and milk′s influence on children′s growth and bone mineral density.Methods From Oct.2013 to Oct.2012,1268 students from the primary schools in the county were included in the study by the Health Care Department of Qingyuan County Maternal and Child Health Hospi-tal,and with class as basic unit using random number method they were divided into two groups,namely cal-cium plus milk group and pure milk group,634 cases in each group.The calcium plus milk group drank milk more than 2 times a week,and tookcompound calcium amino acid chelate capsules; pure milk group drank milk more than 2 times a week,without taking calcium tablet.The milk in the research was all fresh milk,the drugs were from the research institution.Results The height,body mass,and the development of sitting height of the calcium plus milk group were superior to that of the pure milk group[(148.3 ±8.9) cm vs (145.2 ±145.2) cm, (39.8 ±10.1) kg vs (35.7 ±8.9) kg,(79.5 ±12.3) cm vs (76.1 ±10.2) cm].And average bone mineral density,average radial bone mineral density,average ulna bone mineral den-sity of the calcium plus milk group were all significantly higher than the pure milk group[(0.478 ±0.097) g /cm2 vs (0.301 ±0.012) g /cm2 ,(1.331 ±0.200) g /cm2 vs (1.223 ±0.098) g /cm2 ,(0.660 ± 0.128) g /cm2 vs (0.603 ±0.111 ) g /cm2 ].Conclusion Calcium supplement helps children′s bone growth,therefore calcium supplementation to the milk intake has a positive effect to the growth of height,body mass and bone density of the children.%目的：探讨补钙与喝奶对儿童生长发育及骨密度的影响。方法将2012年10月至2013年10月清苑县妇幼保健院保健科在全县各小学募集的1268例小学生作为研究对象，并以班级为单位利用数字表法随机分成两组，即补钙饮奶组和单纯饮奶组，每组634例。补钙饮奶组成员每周饮奶2次以上，并口服复方氨基酸螯合钙力胶囊；单纯饮奶组成员每周饮奶2次以上，但不服用钙片。该研究实验中所使用的奶均为鲜牛奶，服用药物均为研究机构统一发放。结果补钙饮奶组学生的身高、体质量、坐高等指标显著优于单纯饮奶组[（148.3±8.9） cm 比（145.2±8.1） cm、（39.8±10.1） kg 比（35.7±8.9） kg、（79.5±12.3） cm 比（76.1±10.2） cm]（P ＜0.05）。补钙饮奶组的平均骨密度、桡骨平均骨密度、 尺 骨 平 均骨密度 显 著高于单纯饮奶组[（0.478±0.097） g ／cm2比（0.301±0.012） g ／cm2、（1.331±0.200） g ／cm2比（1.223±0.098） g ／cm2、（0.660±0.128） g ／cm2比（0.603±0.111） g ／cm2]（P ＜0.05）。结论进行钙质的补充，有助于儿童骨密度的增长，同时饮用牛奶进行钙质的补充能够对儿童的身高、体质量以及骨密度的增长起到积极的作用。