Evidence map›Paper›PMID 33941207›Full record

ReviewNutrition & metabolism2021

The relationship of different levels of high iodine and goiter in school children: a meta-analysis.

Tingting Xu, Zhiyuan Ren, Shaohan Li, Long Tan, Wanqi Zhang

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Nutrition & metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06074770 (Study on Dietary Intake Levels of Iodine for 3-6 Years Old Pre-school Children), which is not on this map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06074770 recruitingnot on this mapstarted 2023, after this paper: background citation

Study on Dietary Intake Levels of Iodine for 3-6 Years Old Pre-school Children

TypeobservationalSponsorChen WenRan2023 to 2026Enrolled2,650ConditionsNutritional RequirementsArmsno intervention
3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Tingting XuDepartment of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Heping District, No. 22, Qixiangtai Road, Tianjin, China.
Zhiyuan RenDepartment of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Heping District, No. 22, Qixiangtai Road, Tianjin, China.
Shaohan LiDepartment of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Heping District, No. 22, Qixiangtai Road, Tianjin, China.
Long TanDepartment of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Heping District, No. 22, Qixiangtai Road, Tianjin, China. tanlong@tmu.edu.cn.
Wanqi ZhangDepartment of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Heping District, No. 22, Qixiangtai Road, Tianjin, China.
Tianjin Medical University · CN

Funding

National Natural Science Foundation of China 81703218
6 · The paper itself

Abstract

backgroundOver the past decade, the phenomenon of high urine iodine (HUI) and high water iodine (HWI) has become more common. But the risk of goiter caused by different levels of HUI and HWI remains unclear.

objectivesTo explore the risk of goiter development caused by HUI and HWI, and compare the risk of goiter development from different levels of high iodine.

methodsThe Medline, Cochrane library, Embase, China National Knowledge Infrastructure and Wan fang databases were searched for relevant population-based studies investigating the link between high iodine levels and goiter development in mainland China. Three reviewers extracted data from the included studies independently, assessing the prevalence of goiter development due to high iodine.

resultsTaking 100 μg/L ≤ UIC < 300 μg/L (UIC = urinary iodine concentration) as the reference group, the odds ratio (OR) regarding high iodine levels and goiter formation was 1.74 (95% CI 1.50, 2.01, P < 0.001), if the water iodine concentration (WIC) was greater than 100 μg/L, the OR between goiter development and WIC was 4.74 (95% CI 1.15, 19.46, P = 0.001). The Linear trend analysis of HUI and goiter showed that the prevalence of goiter increased with the increase of UIC (χ

conclusionsWhen the UIC ≥ 300 μg/L or the WIC ≥ 100 μg/L, the risk of goiter will increase. The higher the UIC, the greater the risk of goiter development. In order to improve the public thyroid health, we should adhere to the monitoring of urinary iodine and water iodine, and keep them at an appropriate level.

trial registrationPROSPEROCR, CRD42020197620. Registered 8 August 2020, https://www.crd.york.ac.uk/PROSPERO/ .

Indexed as

GoiterHigh urinary iodineHigh water iodineMeta-analysisSchool children

Identifiers

PMID33941207
PMCPMC8094504
OpenAlexW3157431095

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.