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本文采用一般基层医疗单位均可能具备的单光子骨密度仅测定了110例正常孕母尺桡骨及其新生儿的胫腓骨骨密度，同时还测定了部分早产儿的骨密度，对母孕期营养供给、补钙、日晒、运动等对其所生新生儿骨密度的影响也进行了多因素分析，结果表明早产、双胎儿骨密度值明显低于足月正常新生儿，母孕期未加服钙剂者母亲的尺桡骨骨密度值明显低于服用钙剂者，她们所生新生儿的骨密度亦明显降低，多因素逐步回归分析也发现母孕期的营养供给对新生儿有正性影响。所以提倡孕期保健加强孕期营养是促进新生儿生长发育的有力保障。
In this paper, we use the single-photon bone density that all primary medical units may have. We only measured the tibia-fibular BMD of 110 normal pregnant women with radius and tibia and their newborns, and measured the BMD of some preterm infants, , Calcium, sun, exercise and other newborns on their birth bone mineral density also conducted a multivariate analysis, the results show that premature children, twin fetal bone mineral density was significantly lower than normal newborns, pregnant women did not add calcium The BMD of ulnar and radius of the mifeprist was significantly lower than that of the mifeprist, and the BMD of neonates born to them was significantly lower. The multivariate stepwise regression analysis also found that the nutrition supply during the first trimester had a positive effect on the neonates. So to promote prenatal care to strengthen nutrition during pregnancy is to promote the growth and development of newborn strong protection.