海南省696名小学生饮奶行为及其对骨密度的影响
Milk consumption behavior and its impact on bone mineral density among 696 pupils in Hainan Province
钟成望 1杨斌 2冯棋琴 1赵婵娟 3郭静悦 1张滔 1程秋云 1张帆1
作者信息
- 1. 海南医学院公共卫生与全健康国际学院营养与食品卫生学教研室,海口 571199
- 2. 海南省疾病预防控制中心食品安全风险监测评估所
- 3. 海南医学院公共卫生与全健康国际学院卫生统计学教研室
- 折叠
摘要
目的 了解海南省小学生的饮奶行为及其骨密度水平,并探究骨密度与饮奶行为的相关性,为促进儿童青少年骨骼的健康发育提供科学依据.方法 于2021年11月,采用分层整群随机抽样方法,分别从海南省三亚市和白沙县抽取三至五年级696名小学生进行调查,包括人口学特征、奶及奶制品的摄入情况、不良饮食行为、身体活动和睡眠情况,采用双能X线骨密度测量仪测量学生右侧前臂远端1/3处的骨密度.采用t检验比较不同饮奶行为小学生的骨密度,采用多元线性回归分析饮奶量与骨密度的相关性.结果 有25.3％小学生每日饮奶,13.9％小学生日均饮奶量≥300 g.小学生右侧前臂远端1/3处的骨密度平均为(0.237±0.041)g/cm2.每日饮奶组的小学生骨密度大于非每日饮奶组[(0.250± 0.037)(0.204±0.034)g/cm2;t=15.00,P＜0.01],日均饮奶量≥300 g的小学生骨密度大于日均饮奶量＜300 g的学生[(0.284±0.036)(0.229±0.037)g/cm2;t=13.48,P＜0.01].多元线性回归分析显示,小学生日均饮奶量与骨密度呈正相关(β=0.020,t=21.46,P＜0.01).结论 小学生饮奶状况不佳,饮奶行为对骨密度有积极影响.应进行有效的饮奶干预促进儿童骨骼发育.
Abstract
Objective To investigate the milk-drinking behavior and bone mineral density level of pupils in Hainan Province,and to explore the correlation between bone mineral density and milk-drinking behavior,in order to provide scientific basis for pro-moting the healthy development of bones in children and adolescents.Methods In November 2021,a cross-sectional survey inclu-ding demographic characteristics,milk intake,unhealthy eating behavior,physical activity and sleep was conducted among 696 students from grades 3 to 5 in Sanya and Baisha,Hainan by stratified cluster random sampling,and bone mineral density at the dis-tal 1/3 of the right forearm was measured by dual-energy X-ray absorptiometry.t-test was used to compare the differences in bone mineral density among different milk-drinking behaviors of pupils,and multiple linear regression was used to analyze the correlation between milk consumption and bone mineral density.Results About 25.3％students consumed milk daily and 13.9％consumed ≥300 g of milk daily.The mean bone mineral density at the distal 1/3 of the right forearm was(0.237±0.041)g/cm2.The bone mineral density was greater in the group with daily milk intake than in the group without daily milk intake[(0.250± 0.037)(0.204±0.034)g/cm2,t=15.00,P＜0.01],and the bone mineral density was greater in the group with daily average milk intake ≥300 g than in the group with daily average milk intake＜300 g[(0.284±0.036)(0.229±0.037)g/cm2,t=13.48,P＜0.01].Multiple linear regression analysis showed that daily average milk intake was positively correlated with bone mineral density,with a correlation coefficient(β=0.020,t=21.46,P＜0.01).Conclusion Milk consumption among pupils is inadequate,and milk-drinking behavior has a positive impact on bone mineral density,so effective milk-drinking intervention should be carried out to promote children's bone development.
关键词
饮食习惯/骨密度/回归分析/学生Key words
Food habits/Bone density/Regression analysis/Students引用本文复制引用
基金项目
中国营养学会-营养科普与传播研究基金(CNS-SCP2020-88)
海南省普通高等学校研究生创新科研课题(2021)(HYYS2021B17)
出版年
2023
NETL
NSTL
维普
万方数据