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目的:了解成都市青白江区3~6岁儿童维生素D营养状况,为3~6岁儿童维生素D缺乏或不足的防治提供依据。方法:全区各乡镇、街道各选择幼儿园1所,共11所。通过发放问卷进行一般情况调查,在家长知情同意的情况下,于2014年9~11月检测儿童血清25-羟维生素D浓度。结果:有效研究对象821人,其中血清25-(OH)D水平,缺乏271人(33.3%),不足450人(54.8%),适宜100人(12.2%),无过量。不同年龄血清25-(OH)D水平比较,差异有统计学意义(F=12.468,P<0.01),不同性别血清25-(OH)D水平比较,差异无统计学意义(t=0.440,P>0.05),城镇儿童血清25-(OH)D水平高于农村儿童,差异有统计学意义(t=2.890,P<0.01)。结论:成都市青白江区3~6岁儿童维生素D缺乏和不足率较高,通过户外活动增加日光照射及补充维生素D摄入是必要的。
Objective: To understand the nutritional status of vitamin D in children aged 3 ~ 6 years in Qingbaijiang District, Chengdu, and to provide basis for the prevention and treatment of vitamin D deficiency or deficiency in children aged 3 ~ 6 years. Methods: The township, the streets of the choice of a kindergarten, a total of 11. A general survey was conducted by questionnaire, and children’s serum 25-hydroxyvitamin D concentration was tested from September to November 2014 with informed consent of parents. Results: There were 821 valid subjects, of whom serum 25- (OH) D levels were deficient in 271 (33.3%), less than 450 (54.8%) and 100 (12.2%) without excess. The serum levels of 25- (OH) D at different ages had statistical significance (F = 12.468, P <0.01). There was no significant difference in serum 25- (OH) D levels between different ages > 0.05). The level of serum 25- (OH) D in urban children was higher than that in rural children (t = 2.890, P <0.01). Conclusion: The vitamin D deficiencies and deficiencies in children aged 3 ~ 6 years in Qingbaijiang District of Chengdu City are high. It is necessary to increase daylight and supplement vitamin D intake through outdoor activities.