【目的】 通过流行病学调查研究西昌市0~4岁汉族和彝族儿童营养性维生素D缺乏佝偻病患病情况及影响因素。 【方法】 于西昌市区随机选取来自5个幼儿园及凉山彝族自治州第一人民医院儿保科常规保健就诊的1 235名儿童进行常规体检及实验室检查,包括25-(OH)-D₃骨密度,骨钙素、左手腕骨X拍片。并对其家长进行问卷调查。 【结果】 西昌市区0~4岁儿童佝偻病患病率为38.1%,婴儿佝偻病患病以早期、活动期为主,幼儿以恢复期、后遗症期为主。彝族儿童佝偻病患病率较高,血25-(OH)-D₃水平明显低于汉族儿童。影响西昌城区儿童患病的因素主要有民族差异,彝族儿童患病因素有喂养及维生素AD添加方式。 【结论】 应加强婴幼儿营养性维生素D佝偻病的早期预防,尤其需加强彝族儿童健康管理。

【Objective】 To study the prevalence and influencing factors of 0~4 years old children's vitamin D deficiency in Xichang city by epidemiological investigation. 【Methods】 1 235 children were randomly selected from 5 kindergartens and First People's Hospital of Liangshan Yi Autonomous Prefecture who would get physical examination and lab tests, and their parents would get a questionnaire survey. 【Results】 Rickets prevalence in Xichang city of 0~4 years old children were 38.1%. Infants were found mainly in early stage, and young children were in the stage of recover. The prevalence of Yi was higher than that of Han. The 25-(OH)-D₃ levels were significantly lower than the Han children. The main factors of rickets in Xichang city were nationality. 【Conclusion】 Early prevention of infant and young child' rickets should be strengthened, especially in health management of Yi children.