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目的研究连云港市区0~1岁婴儿骨密度的变化规律,了解该地区0~1岁正常儿童骨密度的参考范围。方法 2010—2011年连云港市妇幼保健院儿童保健科体检的婴儿1 020例采用日本古野电器公司生产的CM-200跟骨超声骨密度仪进行检测。结果 <6月婴儿骨密度异常占57%,6~12月婴儿骨密度异常占80%,2组差异有统计学意义(P<0.05)。男婴骨密度异常占67%,女婴骨密度异常占71%,女婴骨密度异常高于男婴,2组差异无统计学意义(P>0.05)。结论 1岁以内婴儿骨密度受性别影响不大,主要受年龄因素的影响,因此适当添加辅食、增加户外活动的时间和适量维生素D的摄入可提高儿童骨密度水平。
Objective To study the changes of bone mineral density (BMD) in 0 ~ 1 year-old infants in Lianyungang city and to find out the reference range of bone mineral density in normal children aged 0 ~ 1 in this area. Methods A total of 1 020 cases from infants undergoing Child Health Care Section of Lianyungang MCH Hospital from 2010 to 2011 were tested by CM-200 calcaneal ultrasonic bone densitometer manufactured by Japan Furuno Electric Company. Results Abnormal BMD in infants was 57% in June and 80% in infants from June to December. The difference between the two groups was statistically significant (P <0.05). There were 67% abnormal baby bones, 71% female baby bones, and abnormal female baby bones. There was no significant difference between the two groups (P> 0.05). Conclusion Bone mineral density within 1 year of age is less affected by gender, which is mainly affected by age factors. Therefore, proper supplementation of food supplement, increased outdoor time and intake of adequate vitamin D can improve bone mineral density in children.