Analysis of the relationship between bone mineral density and BMI, serum vitamins and trace elements in children / 公共卫生与预防医学

ABSTRACT

Objective To analyze the relationship between children's bone mineral density (BMD) and body mass index (BMI), serum vitamins and trace elements. Methods A total of 319 children who underwent physical examinations at the children's health clinic in our hospital from January 2019 to December 2019 were selected. According to the bone density, the enrolled children were divided into low bone density group and normal bone density group. The relationship between BMD and BMI, serum vitamins and trace elements was analyzed. Results Among 319 children, 183 cases (57.4%) had normal bone density and 136 cases (42.6%) had low bone density. The SOS and Z values of boys were higher than those of girls, while the proportion of low bone density was lower than that of girls, but the difference was not statistically significant (P>0.05). The SOS and Z values of the 0 to 1-year old group were both lower than the other age groups, the proportion of low bone density was significantly higher than that of the other groups, and the difference was statistically significant (P<0.05). The BMI of children in the low bone density group was higher than that of the normal bone density group, the levels of VD, Cu and Zn lower than normal bone density group, and the difference is statistically significant (P<0.05). SOS value was positively correlated with age, height, weight, VD, Ca, Fe, and Zn (P<0.05), and negatively correlated with BMI and VE (P<0.05). BMI, VD, and Zn were all influencing factors for children's bone mineral density (P<0.05). Conclusion BMI, VD, and Zn had a greater impact on children' bone mineral density. Prevention and treatment of obesity and reasonable supplementation of VD and Zn are beneficial to increase children’s bone density.