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目的 ]分析济南市儿童骨矿物质含量及其影响因素 ,为儿童合理营养 ,促进发育、预防疾病提供依据。 [方法 ] 1998年采用SD -10 0 0型单光子骨矿物测量仪 ,检测了济南市山东医科大学附属小学与山东师范大学附属小学761名 7～ 13岁健康儿童 (其中正常体重儿童 65 6名 ,中度以上肥胖儿童 10 5名 )左前臂中上 1/3处桡骨和尺骨的骨矿物质含量线密度 (BMC)和面密度 (BMD) ,并测量了身高、体重、胸围、皮脂厚度、肺活量等 ,进行了多元逐步回归分析 ,并比较肥胖儿童与正常儿童桡骨BMD。 [结果 ]桡骨和尺骨的BMC与BMD均随年龄的增长而增加 ,各年龄组桡、尺骨骨矿物质含量BMC差异均有高度显著性。体重和体块指数 (BMI)与骨矿物质含量关系密切。肥胖组骨矿物质含量显著高于对照组。 [结论 ]济南市 7～ 13岁儿童骨发育状况良好 ,体重和体块指数是影响骨矿物质含量的主要因素。
Objective] To analyze the bone mineral content and its influencing factors in children in Jinan, and provide the basis for children’s rational nutrition, promoting development and preventing diseases. [Method] In 1998, SD110 0 single-photon bone mineral measuring instrument was used to detect 761 healthy children aged 7-13 years (primary and secondary school of Shandong Medical University Affiliated Primary School of Jinan City and Shandong Normal University affiliated primary school 656 , 105 children with moderate or severe obesity). The bone mineral content linear density (BMC) and areal density (BMD) of the radius and ulna in the middle and upper third of the left forearm were measured. The height, weight, bust, sebum thickness, Lung capacity and so on, conducted a multiple stepwise regression analysis, and compared obesity children with normal children’s radial BMD. [Result] The BMC and BMD of radius and ulna increased with the increase of age, and the differences of BMC in bone mineral content of radial and ulna in all age groups were highly significant. Body mass and body mass index (BMI) and bone mineral content are closely related. Obese group bone mineral content was significantly higher than the control group. [Conclusion] The bone development in 7 ~ 13 years old children in Jinan is good, body mass index and body mass index are the main factors affecting the bone mineral content.