深圳市3~4岁儿童维生素D营养状况及影响因素分析

Analysis of Vitamin D Nutritional Status and Influencing Factors of Children Aged 3 to 4 in Shenzhen

目的了解深圳市3~4岁儿童维生素D营养状况及影响因素,为防治儿童维生素D缺乏提供科学依据。方法对710例3~4岁儿童进行体格测量及血清25-羟维生素D[25(OH)D]水平检测。结果研究对象总体血清25(OH)D的平均浓度为79.41±23.95 nmol/L,维生素D不足率为50.1%,未发现维生素D缺乏儿童。多元Logistic回归分析显示,户外活动情况、主要照顾者文化程度、动物乳及制品摄入量是儿童维生素D水平的重要影响因素。结论深圳市3~4岁儿童总体维生素D水平达到标准,但维生素D不足情况仍需重视,应加强儿童血清25(OH)D水平的监测。

Objective To explore the vitamin D nutritional status and influencing factors of children aged 3 to 4 years old in Shenzhen,so as to provide scientific basis for preventing vitamin D deficiency in children.Methods The physical measurements were performed in 710 children aged 3 to 4 years old.Serum 25-hydroxyvitamin D concentration was determined by chemiluminescence method.Results The average serum 25(OH)D concentration of all subjects was(79.41±23.95)nmol/L.The percentage of vitamin D insufficient was 50.1%.Logistic regression analysis showed that participating in outdoor activities,the education level of primary caregiver and the consumption of dairy product were important influencing factors for vitamin D level.Conclusion The overall vitamin D level of children aged 3 to 4 in Shenzhen has reached the standard,but the insufficiency of vitamin D still needs attention.The serum level of 25(OH)D in children aged 3 to 4 years old should be monitored.