Prevalence of thyroid disorders in inland and coastal populations: A systematic review - Report - MDSpire

Thyroid Disorder Incidence Among Coastal and Inland Populations: A Systematic Review

  • By

  • Samyuktha Thakadiyil Harikrishnan

  • Amina Azeez

  • Sneha Reji

  • Daya Mani Jacob

  • Mustafa Sarmad Al Hamdani

  • Sondous Eksheir

  • Latifa Nabeel Alsaad

  • Jayakumary Muttappallymyalil

  • Satish Chandrasekhar Nair

  • Jayadevan Sreedharan

  • July 21, 2026

Share

Clinical Report: Thyroid Disorder Incidence Among Coastal and Inland Populations

Overview

This systematic review explores the prevalence of thyroid disorders in coastal versus inland populations, highlighting differences influenced by environmental factors such as iodine intake and exposure to pollutants.

Background

Thyroid disorders can have profound effects on maternal and child health. Environmental determinants, particularly iodine availability and exposure to endocrine-disrupting chemicals, play a significant role in the incidence of these disorders.

Data Highlights

No numerical data provided in the article.

Key Findings

  • Higher prevalence of thyroid cancer and nodules in coastal populations.
  • Inland areas show greater occurrences of goiter and hypothyroidism.
  • Iodine status and seafood consumption influence thyroid disease prevalence.
  • Environmental pollutants like bisphenol A and polychlorinated biphenyls affect thyroid function.
  • Female gender and older age are associated with a greater burden of thyroid disease in both populations.

Clinical Implications

Regular monitoring of environmental pollutants and ensuring adequate iodine intake through universal salt iodization may help mitigate the prevalence of thyroid disorders.

Conclusion

Geographical location is a critical determinant of thyroid disorder prevalence, influenced by dietary and environmental factors.

Related Resources & Content

  1. American Thyroid Association 2026 Guidelines for Thyroid Disease in Preconception, Pregnancy, and Postpartum
  2. The Journal of Clinical Endocrinology & Metabolism — Thyroid Activity and Overall Mortality in Relation to Multimorbidity: Findings from Two Population-Based Studies
  3. The Journal of Clinical Endocrinology & Metabolism — Assessing Cardiovascular Risk in Euthyroid Koreans: The Impact of the Parametric Thyroid Feedback Quantile Index
  4. Archives of Toxicology — Systematic Review of Chemical Interference with Placental Thyroid Hormone Signaling: Emphasizing Gender-Specific Outcomes
  5. Prevention and control of iodine deficiency in the WHO European Region: adapting to changes in diet and lifestyle
  6. Optometric Management — SYSTEMIC CONDITIONS - Deciphering the Thyroid Riddle
  7. Iodine - Health Professional Fact Sheet
  8. IGN 2025 Global Iodine Scorecard
  9. American Thyroid Association 2026 Guidelines for Thyroid Disease in Preconception, Pregnancy, and Postpartum
  10. Prevention and control of iodine deficiency in the WHO European Region: adapting to changes in diet and lifestyle
  11. USDA, FDA and ODS-NIH Database for the Iodine Content of Common Foods mcg per 100 grams Release 4, October 2024 DB_ID | Standard Reference (Foundation FoodsA) FDC NDB No. | TDS No. | Description | n | Iodine mcg/100gB | SD | Min | Max | Source(s) | Year(s) Analyzed
  12. https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1536506/pdf
  13. Effects of altitude on thyroid disorders according to Chinese three-rung, ladder-like topography: national cross-sectional study | BMC Public Health | Springer Nature Link
  14. Correlations between iodine status and the risk of thyroid nodules, a systematic review and dose-response meta-analysis - PubMed

Original Source(s)

Related Content