非缺碘性因素对儿童甲状腺容积影响的研究

Study on effects of non-iodine factors on thyroid volume of 8-10 aged children

目的探讨非缺碘性因素对学龄儿童甲状腺容积的影响。方法检查８～１０岁儿童甲状腺容积，比较身高、体重、年龄对甲状腺容积的影响。结果不同年龄组的儿童甲状腺容积有显著性差异；高组、胖组儿童的甲状腺容积明显高于矮组、瘦组；不同性别儿童的甲状腺容积无显著性差异；偏相关系数表明体重、年龄是影响甲状腺容积的本质因素；身高、年龄、体重三者的标准偏回归系数之比为１：１．２：３．１，体重对甲状腺容积的作用是身高的３．１倍，是年龄的２．７倍。结论评价学龄儿童甲状腺容积大小时应考虑体重、年龄等因素的影响。

Objective Study the effects of non-iodine factors on thyroid volume of 8-10 aged children. Methods The effect of body height,weight and age on thyroid volume of 1279 children aged 8-10 was studied by PPS method. Results The thyroid volumes of different age groups were statistically different. The thyroid volumes of the taller and heavier groups were obviously higher than those of the shorter and lighter groups. There were no significant differences between the thyroid volume of boys and girls. The coefficient of partial correlation indicated that age and body weight were essential influencing factors of the thyroid volume. The proportion of the standarded coefficients of the body height,age and body weight is 1: 2. 1: 3. 1,the function of body weight to thyroid volume is 3.1 times that of body height,and 2.7 times that of age. Conclusions The influencing factors should be considered when evaluating the pupils' thyroid volumes.