The Relationship Between BMD And Family Environment And Lifestyle In Children Aged 8-9 Years Old

Objective:To explore the relationship between bone mineral density and family environment and life style in children.Methods:A total of 371 students,192 male children and 179 female children, aged 8-9 years in Huilongguan education school affiliated Capital Normal University. Dealing with the various factors effect on the children’s bone density by measuring children forearm bone mineral density, the percentage of body fat index, issuing at the same time the questionnaire of children’s family environment and lifestyle, and using independent sample t test, analysis of variance, regression analysis and other statistical method.Results:1. Different gender children’s bone mineral density difference is significant (p< 0.05)2. In the family environmental factors that may affect children’s bone mineral density, bone density differences between male children of active/passive smoking during the mother pregnancy and male children of active/passive smoking during the mother pregnancy, are significant (p<0.05). In different gestational age, bone density differences between female children of full term produce and retarded birth, and premature children are significant (p<0.05). In other factors that may affect children’s bone mineral density of family environment, including parents’level of education, children’s living room orientation,passive smoking in children, calcium deficiency during the mother pregnancy, smoking or passive smoking during the mother pregnancy, calcium supplementation during mother pregnancy, feeding ways of children, children with respiratory tract/diarrhea disease, chronic diseases, children’s hormonal drugs, whether calcium deficiency whether children, whether calcium supplementation after the birth of children),these factors had no effects on bone mineral density of different gender children.3. In all possible lifestyle factors affecting children’s bone mineral density, bone density differences between female children with more than nine hours of sleep time and female children with less than nine hours of sleep time have significant difference with gender children’s bone mineral density (p< 0.05). The other possible lifestyle factors that affect children’s bone mineral density (children’s often outdoor activities, children’s sleep quality, children’s often doing sports after class, a history of fractures in children, children’s picky eating, children’s often drinking milk and other dairy products, children’s often eating foods that are rich in vitamin D, children’s often drinking carbonic acid beverage, children’s often eating/drinking soy products, children’s often eating fruits and vegetables) have no effect on bone mineral density for different gender children.Conclusions:1. Gender is the influencing factors of children’s bone mineral density and bone mineral density of male students is higher than female children’s bone mineral density.2. The mother’s smoking or passive smoking during pregnancy is unfavorable factors of male children’s bone mineral density.3. The full term production is conducive to the accumulation of female children’s bone mineral density.4. Adequate sleep is a favorable factor of female children’s bone mineral density.5. Calcium deficiency during the mother pregnancy is the influence factors of bone mineral density in children, and children’s bone mineral density of calcium deficiency during the mother pregnancy is lower than children’s bone mineral density of no calcium deficiency during the mother pregnancy...