摘要:
目的 了解连云港市学龄前儿童血清维生素A、D水平及其影响因素,以期对学龄前儿童的保健工作提供现实依据。方法 选择连云港市两所普通幼儿园及两个经济水平居中的社区,按照花名册随机选取2~6岁健康儿童108名,维生素A采用高效液相色谱法,维生素D采用高效液相色谱-串联质谱法进行检测,应用自拟问卷进行调查。结果 维生素D平均(23.33±6.43) ng/ml,正常74名,占68.5%;缺乏7名,占6.5%;不足27名,占25.0%。维生素A平均(0.35±0.07) mg/L,正常89名,占82.4%;缺乏2名,占1.9%;可疑缺乏17名,占15.7%。两种营养素在男女童间差异均无统计学意义。偏食导致的营养素摄入不足和2岁内维生素A、D补充不足以及缺乏户外活动为主要的影响因素。结论 连云港市学龄前儿童维生素D、A依次存在不同程度的缺乏与不足,缺乏发生较为普遍。加强2岁内婴幼儿的维生素D、A的摄入补充,以及学龄前幼儿营养管理、增加户外运动在儿童保健工作中仍需引起更多重视。
Abstract:
Objective To identify the status of serum vitamin A, D levels of preschoolers and its influential factors, in order to provide practical basis for the health care of preschool children. Method 108 children between 2 to 6 years old were randomly sampled from two ordinary kindergarten and two economically centered communities. The levels of Vit A was determined by highperformance liquid chromatography, and the level of 25 (OH) D was determined by high-performance liquid chromatography tandem mass spectrometry, the survey was carried with the self-designed questionnaire.Results The average level of Vit D was (23.33 ±6. 43) ng/ml. 74 cases were normal (68.5%), 7 cases were deficient (6.5%) and less than 27 cases (25.0%). The level of was (0.35 ±0.07) mg/L, 89 cases were normal (82.4%), 2 cases were deficient (1.9%), and 17 cases were suspected deficiency (15.7%). There wasn't statistical difference between boys and girls. Inadequate nutrient intake caused by partial diet, inadequate vitamin A and D supplementation within 2 years of age and lack of outdoor activities were the main influencing factors.Conclusions It is common for the preschool children in Lianyungang city to have varying degrees of deficiency and deficiency in vitamin D and vitamin A, It is still necessary to pay more attention to strengthening the intake and supplement of vitamin D and A in infants and young children within 2 years old, and the nutrition management of preschool children, more attention should be paid to increasing outdoor sports in children's health care.
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