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目的了解奉化市居民碘营养状况,为制定和完善科学补碘策略提供依据。方法根据不同地理类型选取3个村(居委会)841名居民作为调查对象,共采集841份尿样、300份盐样和16份水样分别进行尿碘、盐碘和水碘浓度检测,并对大于等于6周岁的调查对象开展甲状腺B超检查。结果盐碘和尿碘浓度中位数分别为28.45mg/kg和171.26μg/L,不同地区人群尿碘水平差异有统计学意义(χ2=57.972,P=0.000),经常食用海产品的人群尿碘水平高于不经常食用海产品的人群(Z=-2.595,P=0.009)。结论奉化市属于环境碘缺乏地区,居民碘营养水平总体上处于较适宜水平,但山区居民尿碘水平处于超过适宜量。
Objective To understand the iodine nutrition status of residents in Fenghua and provide the basis for formulating and improving the science of iodine supplementation. Methods A total of 841 inhabitants of 3 villages (neighborhood committees) were selected according to different geographical types. A total of 841 urine samples, 300 saline samples and 16 water samples were collected for determination of urinary iodine, iodine and iodine in water samples, Subjects older than 6 years of age underwent thyroid ultrasound. Results The median concentrations of salt iodine and urinary iodine were 28.45mg / kg and 171.26μg / L, respectively. The urinary iodine levels in different areas were significantly different (χ2 = 57.972, P = 0.000), urinary iodine Levels of iodine were higher in those who had less regular use of seafood (Z = -2.595, P = 0.009). Conclusion Fenghua City belongs to the environment iodine deficiency area, and the iodine nutrition level of the residents is generally at a more appropriate level, but the urinary iodine level of the mountain residents is more than the appropriate amount.