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目的了解天津市碘缺乏地区8~10岁儿童甲状腺容积及甲肿率变化趋势。方法于2005和2011年采用B超检测天津市2 490名8~10岁儿童甲状腺容积,分析甲肿率。结果 2005年8、9、10岁儿童甲状腺容积中位数分别为2.37、2.57、2.88 ml,2011年分别为2.44、2.80、3.18 ml,2011年8~10岁儿童甲状腺肿大率[2.14%(27/1 261)]高于2005年[1.79%(22/1 229)],差异无统计学意义(χ2=0.24,P=0.627)。结论天津市儿童甲状腺容积增大趋势及甲肿率的波动无实际意义。
Objective To investigate the changes of thyroid volume and thyroid volume in children aged 8-10 years in iodine deficiency areas in Tianjin. Methods The thyroid volume of 2490 children aged 8 to 10 years old in Tianjin was detected by B-mode ultrasonography in 2005 and 2011. The rate of thyroid edema was analyzed. Results The median thyroid volume of children aged 8, 9 and 10 years were 2.37, 2.57 and 2.88 ml in 2005 and 2.44, 2.80 and 3.18 ml in 2011 respectively. The prevalence of goiter in children aged 8-10 years [2.14% 27/1 261)] was higher than in 2005 (1.79% (22/1 229)], with no significant difference (χ2 = 0.24, P = 0.627). Conclusion The increasing trend of thyroid volume in children in Tianjin and the fluctuation of the rate of goiter have no practical significance.