湛江市学龄前儿童发锌营养状况与发展趋势

Investigation and Analysis on Nutritive Condition of Children Hair Zn in the past 11 Years in Zhanjiang City

调查了湛江市 1 990～ 2 0 0 0年 6月的 1 90 1 7名 0～ 6岁儿童发锌营养状况 ,经统计学分析 ,结果表明 ,锌含量在 1 990～ 1 994年 5年之间处于波动上升趋势 ,1 995～ 2 0 0 0年 6年间 ,波动幅度很小 ,似接近于平衡 (x±s=80 .0× 1 0 -6± 2 0 .1× 1 0 -6)。前 5年均值与后 5年均值比较呈非常显著性差异 (P<0 .0 0 1 )

The hair Zn nutritive conditions of 19017 children aged 0～6 were investigated and analysed.From 1990 to 2000 in Zhanjiang city,statistical result showed that hair Zn content during 1990~1994 had a fluctuatly rising tendency,but in the next 6 years,fluctuation extended small,wich is a equilibrium (±s=80.0×10 -6 ±20.1×10 -6 ).There is a significant difference in the everage value between 1990～1994 and 1994～2000(P<0.001).