ArticleFrontiers in endocrinology2025
Assessing thyroid health: phenotypic age compared to chronological age.
Article in Frontiers in endocrinology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Phenotypic age acceleration and all-cause and cardiovascular mortality among U.S. adults at risk for heart failure.American heart journal plus : cardiology research and practice · 2026Article
- Integrated multi-omics atlas reveals PTM-driven signaling and immunologic remodeling in a mouse model of age-related subclinical hypothyroidism.American journal of translational research · 2026Article
- Phenotypic Age Acceleration as a Mediator in Thyroid Hormone-Related Cardiovascular Risk Among the Elderly.Cardiology research and practice · 2026Article
- Parathyroid disease, gut microbiome, biologic age, and more.Hormones (Athens, Greece) · 2025Article
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9 authors.
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Abstract
Introduction: Aging is associated with thyroid dysfunction, but the role of phenotypic age, a biological aging measure derived from nine clinical biomarkers and chronological age, remains unclear. Methods: This cross-sectional study included 6,681 adults from the National Health and Nutrition Examination Survey (NHANES, 2007-2012) with complete thyroid function and age data. Participants were grouped into quartiles based on chronological and phenotypic age. Weighted multinomial logistic regression was used to assess the association between aging and thyroid disorders, followed by the use of restricted cubic splines (RCSs) to explore potential nonlinear relationships. Subgroup and sensitivity analyses were conducted to test robustness. Mediation analysis assessed the role of phenotypic age components in the link between phenotypic age and thyroid dysfunction. Results: Thyroid-stimulating hormone (TSH) and free thyroxine (FT4) exhibited U-shaped relationships with both chronological and phenotypic age, while free triiodothyronine (FT3) showed a nonlinear association with chronological age and a negative linear correlation with phenotypic age. The age gap (phenotypic age minus chronological age) was positively associated with TSH and nonlinearly with FT4. Thyroid peroxidase antibody (TPOAb) exhibits a nonlinear association with both age types, and thyroglobulin antibody (TGAb) has a positive linear association with chronological age. PPhenotypic age showed stronger linear associations with TPOAb positivity (PTPOAb), TGAb positivity (PTGAb), overt hyperthyroidism, and subclinical hypothyroidism than chronological age. Overt hypothyroidism demonstrated an inverted U-shaped association with both age metrics and a positive correlation with age gap. Mediation analysis revealed that mean cell volume mediated 10% of the association between phenotypic age and overt hypothyroidism, while lymphocyte percentage exhibited a negative mediation effect (-26%) in the association between phenotypic age and subclinical hypothyroidism. Discussion: Phenotypic age better captures aging-related changes in thyroid function than chronological age and may serve as a useful biological aging marker in clinical endocrine research.
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