ArticlePublic health nutrition2020
A cross-sectional research of iodine status of pregnant women in Chongqing, south-west China.
Article in Public health nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Prevalence of insufficient iodine intake in pregnancy worldwide: a systematic review and meta-analysis.European journal of clinical nutrition · 2022Pooled it
- Iodine status of pregnant women in the Chinese plateau area - effects on thyroid function as well as adverse pregnancy and fetal outcomes.Asia Pacific journal of clinical nutrition · 2025Article
- Iodine status and knowledge among pregnant and lactating women in Large City in Northern China after nearly 30 years of the universal salt iodization.European journal of nutrition · 2024Article
- Relationship between iodine knowledge and dietary iodine intake in pregnant and lactating women: a cross-sectional study.Public health nutrition · 2023Article
- Is there a relationship between the urinary iodine of pregnant and diabetic patients?Journal of family medicine and primary care · 2023Article
- Iodine nutrition level and thyroid function in pregnant women in the Yongchuan district of Chongqing.Journal of clinical and translational research · 2022Article
- Iodine nutrition status and thyroid autoimmunity during pregnancy: a cross-sectional study of 4635 pregnant women.Nutrition journal · 2022Article
- Effect of Moderate-to-Severe Iodine Deficiency in Early Pregnancy on Subclinical Hypothyroidism: A Longitudinal Study in an Iodine-Sufficient Region in China.Frontiers in nutrition · 2022Article
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4 authors.
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Abstract
objectiveTo investigate whether implementation of a universal salt iodization (USI) programme has sufficient effects on pregnant women in Chongqing, the present study evaluated the iodine nutritional status of pregnant women living in Chongqing by spot urinary iodine concentration (UIC), to provide scientific suggestions to better meet the specific iodine needs of this vulnerable group.
designCross-sectional design.
settingA random spot urine sample and household table salt sample were provided by each participant.
participantsA total of 2607 pregnant women from twenty-six of thirty-nine districts/counties in Chongqing participated.
resultsThe overall median UIC of pregnant women was 171·80 μg/l (interquartile range (IQR) = 113·85-247·00 μg/l) and 40·97 % (n 1057) of participants were iodine insufficient. The median iodine in table salt samples was 25·40 mg/kg (IQR = 23·10-28·30 mg/kg); 93·26 % (n 2406) of samples examined were found to be adequately iodized. Iodine nutritional status was not significantly different according to table salt iodization category. Trimester was identified to be statistically associated with UIC (P < 0·01). Seven districts/counties had median UIC below 150 μg/l and one district had median UIC of 277·40 μg/l.
conclusionsThe USI programme in Chongqing prevents iodine deficiency generally, but does not maintain iodine status within adequate and recommended ranges throughout pregnancy. Usage of non-iodized or unqualified iodized salt and the slight change of dietary habits of iodized salt in Chongqing may present a substantial challenge to fight iodine-deficiency disorders; more efforts are needed to ensure adequate iodine intake during pregnancy besides the USI programme.
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