重庆市某郊区学龄前儿童维生素A营养状况及其影响因素分析

目的:了解学龄前儿童维生素A营养状况,并对其影响因素进行分析,为制定适当的干预措施提供科学依据。方法:采用整群抽样,对重庆市某郊区8个幼儿园3～6岁878名儿童进行现况调查,包括身体测量指标检查、生化指标检查(用高效液相色谱测定血清视黄醇)及相关影响因素问卷调查。结果:儿童血清视黄醇(VA)平均值(1.064±0.272)μmol/L,VA缺乏(VA浓度<0.7μmol/L)的检出率为22.41%(234/878),亚临床缺乏(0.7μmol/L

Analysis on nutrition status and effect factors of vitamin A in preschool children of a suburb of Chongqing city

Objective:To analyze the status of vitamin A deficiency (VAD),to explore its affecting factors in preschool children of a suburb of Chongqing city,provide a scientific basis for developing appropriate interventions.Methods:878 children from 8 kindergartens in a suburb of Chongqing were selected for clinical examination by cluster sampling method,health and dietary questionnaire and serum level of vitamin A measurement.The serum levels of vitamin A were examined by HPLC and the serum levels of RBP and PA were examined by ELISA.Results:The average serum level of vitamin A was (1.064±0.272) μmol/L.The detection rate of vitamin A dificienty was 22.41% (234/878),and that of sub-clinical vitamin A deficiency was 36.11% (377/878).The non-conditional logistic regression analysis showed that dietary factors and the common diseases in children were risk factors (P<0.05).Conclusion:The children in a suburb of Chongqing city have serious vitamin A nutrition problem.Preventive measures including nutrition education,controlling common disease and enriched food should be taken.