ArticleToxics2024
The Association between Metals and Thyroid Cancer in Puerto Rico-A National Health and Nutrition Examination Survey Analysis and Ecological Study.
Article in Toxics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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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.
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.
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Who cites it
4 citing papers in PubMed.
- Article
- The Thyroid Under Pressure: Heavy Metals, Endocrine Disruptors and Translational Insights into Carcinogenesis and Thyroid Dysfunctions.International journal of molecular sciences · 2026Review
- Air Pollutants in Puerto Rico: Key Pollutants and Carcinogenic Properties.International journal of environmental research and public health · 2025Review
- Genetic analysis the causal associations between metal elements and thyroid cancer: a bidirectional Mendelian randomization.Discover oncology · 2025Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Thyroid cancer rates have risen globally over the past four decades, with Puerto Rico experiencing a particularly pronounced increase. This may be linked to higher metal exposure, as some metals are endocrine disruptors and carcinogens. Currently, certain regions of Puerto Rico have Superfund programs because of high concentrations of metals in the soil. Therefore, we investigated the association between thyroid cancer incidence and three metals (lead, cadmium, and mercury) with known endocrine-disrupting properties and increased levels in soil samples in Puerto Rico. We used the National Health and Nutrition Examination Survey (NHANES) data for heavy metal levels and the thyroglobulin antibody (TgAb) as a thyroid cancer marker. Additionally, we performed an ecological study using data from the Environmental Protection Agency (EPA) report on Metals from Natural and Anthropogenic Sources in Puerto Rico Soils and data from the Puerto Rico Central Cancer Registry on age-adjusted thyroid cancer incidence rates from 2015 to 2019. Through NHANES analysis, we found a significant negative association between mercury and TgAb. Through our ecological study, we observed higher thyroid cancer incidence rates and increased metal levels in the soil in the northern parts of Puerto Rico. Our heterogenous results necessitate further research on this topic.
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Registered trials
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