Evidence map›Paper›PMID 33759075›Full record

ArticleEndocrine2021

Vitamin D deficiency is associated with thyroid autoimmunity: results from an epidemiological survey in Tianjin, China.

Fang Fang, Yun Chai, Hongyan Wei, Kunling Wang, Long Tan, Wanqi Zhang, Yuxin Fan, Fengao Li, Zhongyan Shan, Mei Zhu

Abstract read
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In one paragraph

Article in Endocrine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
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  5. The Association ofAnalytical cellular pathology (Amsterdam) · 2025
    Article
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  7. Article
  8. Article
  9. Article
  10. Relation between vitamin D and adolescents' serum prolactin.Przeglad menopauzalny = Menopause review · 2023
    Article
  11. Article
  12. How does Hashimoto's thyroiditis affect bone metabolism?Reviews in endocrine & metabolic disorders · 2023
    Review
  13. Vitamin DInternational journal of molecular sciences · 2023
    Review
  14. Vitamin D and the Thyroid: A Critical Review of the Current Evidence.International journal of molecular sciences · 2023
    Review
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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

10 authors at 3 institutions in 1 country.

Fang Fang *Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, 300052, China.
Yun Chai *Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, 300052, China.
Hongyan WeiDepartment of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, 300052, China.
Kunling WangDepartment of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, 300052, China.
Long TanDepartment of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.
Wanqi ZhangDepartment of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.
Yuxin FanDepartment of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, 300052, China.
Fengao LiDepartment of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, 300052, China.
Zhongyan ShanDepartment of Endocrinology and Metabolism and Institute of Endocrinology, The First Hospital of China Medical University, Shenyang, 110001, China.
Mei ZhuDepartment of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, 300052, China. meichuqin@163.com.
Tianjin Medical University General Hospital · CNTianjin Medical University · CNFirst Hospital of China Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe pathogenesis of Hashimoto's thyroiditis (HT) is unclear, although some studies have identified an association between vitamin D deficiency and thyroid autoantibody positivity. This study aimed to investigate vitamin D status, and its relationships with thyroid autoantibody positivity and HT, via a large epidemiological survey.

methodsThe epidemiological survey was conducted in Tianjin, China. All participants underwent testing for serum 25-hydroxyvitamin D (25OHD), thyroid function, and thyroid autoantibodies, and some participants underwent testing to evaluate CD4

resultsThe study included 1812 participants and revealed prevalences of 13.1% for thyroid peroxidase antibodies (i-TPOAb) and 14.0% for thyroglobulin antibodies (i-TgAb). Logistic regression analysis revealed that thyroid autoantibody positivity was associated with sex, age, and 25OHD classification. An increased likelihood of i-TPOAb positivity was associated with 25OHD deficiency (odds ratio [OR]: 2.428, 95% confidence interval [CI]: 1.383-4.261) and 25OHD inadequacy (OR: 1.198, 95% CO: 0.828-1.733; p = 0.008). An increased likelihood of i-TgAb positivity was associated with 25OHD deficiency (OR: 2.366, 95% CI: 1.366-4.099) and 25OHD inadequacy (OR: 1.263, 95% CI: 0.883-1.807; p = 0.009). Relative to healthy subjects, patients with HT had significantly higher proportions of Th1 and Th17 cells, as well as higher concentrations of related cytokines.

conclusionsThis study revealed that vitamin D deficiency was associated with thyroid autoantibody positivity, and that vitamin D deficiency seems to be involved in the pathological mechanism underlying HT. Large randomized controlled trials are needed to investigate the effects of vitamin D supplementation on HT.

Indexed as

Hashimoto DiseaseVitamin D DeficiencyAdultAutoantibodiesAutoimmunityChinaHumansVitamin DAutoantibodiesVitamin DCD4+ T-cellsHashimoto’s thyroiditisThyroglobulin antibodiesThyroid autoimmunityThyroid peroxidase antibodiesVitamin D

Identifiers

PMID33759075
OpenAlexW3139531555

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.