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目的了解十堰市3-6岁儿童维生素A(VA)营养状况,将结果与湖北省往年的调查结果相比较,并对VA缺乏者进行干预。方法选取十堰市某幼儿园中班和大班的所有儿童进行膳食调查,健康检查和VA水平检测,对血清视黄醇浓度<1.05 mol/L的儿童给予口服VA补充剂,三个月后再次抽血检测血清中视黄醇浓度。结果十堰市3-6岁儿童VA平均水平为1.27±0.40 mol/L,亚临床缺乏(<0.07 mol/L)占5.3%,可疑亚临床缺乏(0.7-1.05 mol/L)占21.4%,与往年的调查结果比较有一定改善,但是并不显著。膳食调查发现VA摄入不足,视黄醇当量占供给量77.8%。口服VA补充剂三个月后再次检测发现血清视黄醇浓度明显上升,补充前后的差异有统计学意义(paired t-test,t=14.86,P<0.001)。结论儿童VA的营养状况并没用显著改善,提示我们发展经济的同时,也要加强营养宣教,普及婴幼儿科学喂养知识,降低儿童VA亚临床缺乏患病率,进一步提高儿童健康水平。
Objective To understand the nutritional status of Vitamin A (VA) in children aged 3-6 years in Shiyan City and compare the results with the findings of previous years in Hubei Province and to intervene in VA deficiency. Methods All children in middle school and big class of a nursery in Shiyan City were enrolled in the dietary survey, the health examination and the VA level test. The children were given VA supplementation when the serum retinol concentration was less than 1.05 mol / L. Blood was taken again three months later Serum retinol concentration was measured. Results The average level of VA in children aged 3-6 was 1.27 ± 0.40 mol / L in Shiyan, 5.3% in subclinical deficiency (<0.07 mol / L) and 21.4% in subclinical deficiency (0.7-1.05 mol / L) The survey results in previous years have shown some improvement, but not significant. Dietary survey found that VA intake, retinol equivalent accounted for 77.8% of the supply. After three months of oral VA supplementation, retesting of serum retinol significantly increased the difference between before and after supplementation was statistically significant (paired t-test, t = 14.86, P <0.001). Conclusion The nutritional status of children with VA did not significantly improve, suggesting that while we develop economy, but also to strengthen nutrition education, popularizing scientific knowledge of infants and young children to reduce the prevalence of subclinical VA and further improve children’s health.