同步采集了１００名７～１４岁儿童一次随机尿和２４ｈ尿，结果显示：１１～１４岁儿童２４ｈ尿量接近１１，一次随机尿碘与２４ｈ尿碘呈统计学显著正相关，并有良好的线性回归关系。证明在一定范围内，可通过监测一次随机尿碘推测２４ｈ尿碘．还分两个季节对１１名成人进行了一次随机尿的连续采集，发现各次采样人群尿碘平均水平无统计学显著差异，说明就群体而言，一次随机尿碘可以代表一个时期内人群碘营养状况。 Simultaneous collection of 100 children aged 7 to 14 random urine and 24h urine, 24h urine output of 11 to 14-year-old children close to 11, a random urine iodine and 24h urinary iodine was statistically significant positive and good Linear regression relationship. Prove that within a certain range, by monitoring a random urinary iodine inference 24h urinary iodine. Random sampling of 11 consecutive adults was also conducted in two seasons and found no statistically significant differences in mean urinary iodine levels among all sampled populations, indicating that, in terms of population, a randomized urinary iodine could represent iodine in a population over a period of time Nutritional status.