目的了解辽西地区某沿海城市孕妇人群碘营养状况及影响因素,为辽西沿海地区孕妇科学补碘提供依据。方法采用完全随机抽样,选取2014年9月-2015年9月在某三甲医院进行产前检查,且现住址为该市3个不同县区居住10年以上的594例孕妇晨间尿样进行尿碘含量检测,并对孕妇基本情况、日食盐量、碘营养知识、1个月内日常饮食频率等因素进行问卷调查。以孕妇尿碘值为因变量,可能影响尿碘升高或降低的因素作为自变量进行非条件Logistic回归分析,筛选出影响孕妇尿碘的因素。结果本次调查594例孕妇尿碘范围在11.3~1 133.2μg/L之间,中位数218.4μg/L,四分位数(P_(25)~P_(75))为144.350~273.475μg/L;本次检测尿碘含量的低碘率为26.77%,适碘率为39.22%,高碘率为34.01%。孕妇低碘的保护因素为:食用肉类、受教育程度高、碘营养知晓率得分高、服用碘剂、食用肉类、食用碘盐、食用奶类及海产品;孕妇低碘的危险因素是:职业为农民、食用小米。受教育程度高、知晓率得分高、食用碘盐、海水产品为孕妇高碘的保护因素。结论该市孕妇碘营养现状良好;孕妇妊娠期间作为碘元素摄入的敏感时期,应注意合理补碘,避免因摄入碘营养异常导致的不良影响。 Objective To understand the status of iodine nutrition and its influencing factors among pregnant women in a coastal city in western Liaoning and provide scientific basis for iodine supplementation in pregnant women in coastal areas of western Liaoning. Methods A total of 594 pregnant women with prenatal examination in a top three hospital from September 2014 to September 2015 were enrolled in this study. Iodine content testing, and the basic situation of pregnant women, salt intake, iodine nutrition knowledge, frequency of daily diet within 1 month and other factors were investigated. The urinary iodine value of pregnant women as a dependent variable, factors that may affect the increase or decrease of urinary iodine as an independent variable Logistic regression analysis, screening out the factors that affect urinary iodine in pregnant women. Results The urinary iodine of 594 pregnant women in this survey was between 11.3 and 1 133.2 μg / L, with a median of 218.4 μg / L and a quartile of (P 25 P 75) between 144.350 and 273.475 μg / L; the detection of urinary iodine content of low iodine rate was 26.77%, suitable iodine rate of 39.22%, high iodine rate of 34.01%. The protective factors of low iodine for pregnant women are: eating meat, high education level, high iodine nutrition awareness rate, taking iodine, eating meat, eating iodized salt, eating milk and seafood; risk factors for low iodine in pregnant women are Occupation for the farmers, consumption of millet. High level of education, awareness of high scores, consumption of iodized salt, sea water products for the protection of pregnant women with high iodine. Conclusion The iodine nutrition of pregnant women in this city is in good condition. As a sensitive period of iodine intake during pregnancy, pregnant women should pay attention to iodine rationally to avoid the adverse effects caused by the abnormal nutrition of iodine intake.