Serum vitamin A among children aged 0-16 in Nantong

Objective To understand the serum vitamin A level of children aged 0- 16 years in Nantong City, and to provide reference for scientific supplement of vitamin A for children and prevention of related diseases. Methods A cross-sectional survey method was used to detect the serum vitamin A level of 3 271 children aged 0-16 years old by using high performance liquid chromatography (HPLC) in Nantong Maternal and Child Health hospital from January 2017 to December 2018, and the general information of children was collected. Results The results showed that the average serum vitamin A concentration of 0-16 years old children was (0.31±0.08) mg/L, boys was (0.31±0.08) mg/L, which was lower than that of girls (0.32±0.09) mg/L. The proportion of insufficient and deficient vitamin A in boys was higher than that in girls ( P 12〜16, >6 〜12, >3 〜6, >1〜3, ≤1 years old, the difference was statistically significant ( F = 3.48, P 12~16、>6~12、>3~6、>1~3、≤1岁, 差异有统计学意义 ( F = 3.48, P <0.05);维生素 A正常、不足、缺乏的比例依次为 51.2%, 43.5% 和 5.3%, 农村儿童维生素A不足和缺乏的比例髙于城镇, 差异有统计学意 义 (χ 2 = 18.86, P <0.01 )。 结论 南通地区儿童维生素A不足和缺乏的比例较髙, 男童维生素A营养状况较女童差, 应更 多关注这部分儿童, 并预防相关疾病。