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目的了解丽水市莲都区居民碘营养状况及甲状腺结节患病状况。方法运用分层整群抽样法抽取平原、老竹和水东社区313户家庭827人进行甲状腺B超检查,采集居民家中食盐、饮用水源水样和所有对象的尿液作碘含量检测。结果饮用水源中碘含量为5.51μg/L,其中老竹和水东社区居民饮用水均处于严重缺碘状态;3个社区居民家中食盐碘含量为25.70 mg/kg,均在合格范围内;居民尿碘含量为162.74μg/L,碘缺乏率和碘过高率分别为29.30%和11.05%,3个社区居民尿碘含量差异有统计学意义(P>0.01),其中平原社区有82.77%的居民处于碘不足状态。居民甲状腺结节检出率为20.31%,尿碘浓度<100μg/L、100μg/L~、200μg/L~和≥300μg/L的居民甲状腺结节检出率分别为20.66%、21.55%、20.31%和15.80%,差异无统计学意义(P>0.05)。结论莲都区居民食盐碘含量在合格范围内,但部分社区居民的尿碘水平和家中饮用水源的碘含量明显偏低。
Objective To understand the status of iodine nutrition and thyroid nodule in residents of Lido City in Lishui City. Methods Stratified cluster sampling method was used to extract 827 of 313 families in Pingyuan, Laozhu and Shuidong communities for thyroid B-ultrasound examination. Salt, drinking water samples and urine of all subjects were collected for iodine detection. Results The content of iodine in drinking water source was 5.51μg / L, of which drinking water of Laozhu and Shuidong communities were all in a state of severe iodine deficiency. The iodine content of salt in three community residents was 25.70 mg / kg, all within the acceptable range. The urinary iodine content of residents was 162.74μg / L, the iodine deficiency rate and iodine excess rate were 29.30% and 11.05%, respectively. There were significant differences in urinary iodine content among three community residents (P> 0.01), of which 82.77% Of the residents are in the state of iodine deficiency. The detection rate of thyroid nodules in residents was 20.31%. The detection rates of thyroid nodules in residents with urinary iodine <100μg / L, 100μg / L ~, 200μg / L ~ and ≥300μg / L were 20.66%, 21.55%, 20.31 % And 15.80%, the difference was not statistically significant (P> 0.05). Conclusion The iodine content of salt in LianDu area is within the qualified range, but the urinary iodine level in some community residents and the iodine content in drinking water source at home are obviously low.