关键词: 骨密度, 影响因素, 预防, 婴幼儿

Abstract: Objective To analyse the Results of bone mineral density( BMD) of 0~3 years old infants in different ages and gender and to provide evidence for the prevention of insufficient BMD. Methods A total of 2 083 healthy children were enrolled in the study.All the infants were tested the z scores of the middle point at the tibia with ultrasound techniques.The Z scores and BMD were compared according the ages and gender. Results Z scores in male were significantly much higher than those in female.The incidence of insufficient BMD in males was significantly lower than that in females (P<0.05).The Z scores of BMD decreased with ages.There was significant difference in different ages(all P<0.05). Conclusion The BMD Results of infants are influenced by ages and gender.Infants,especially below 6 months,need growth surveillance and the test of BMD periodically to prevent insufficient bone mineral density at later age.

Key words: bone mineral density, effect factors, prevention, infants