Age-specific association between thyroid autoimmunity and hypothyroidism in Chinese adults aged over 65 years: a cross-sectional study

Bibliographic Details
Title: Age-specific association between thyroid autoimmunity and hypothyroidism in Chinese adults aged over 65 years: a cross-sectional study
Authors: Mengjie Zhang, Wenjing Ni, Lina Zhang, Kuanlu Fan, Yu Sun, Chao Liu, Shuhang Xu
Source: Frontiers in Endocrinology, Vol 14 (2023)
Publisher Information: Frontiers Media S.A., 2023.
Publication Year: 2023
Collection: LCC:Diseases of the endocrine glands. Clinical endocrinology
Subject Terms: thyroid autoimmunity, subclinical hypothyroidism, overt hypothyroidism, elderly, hypothyroidism, Diseases of the endocrine glands. Clinical endocrinology, RC648-665
More Details: BackgroundThe correlation between thyroid autoimmune (TAI) disease and hypothyroidism in the elderly of different ages remains unclear. This study aimed to investigate the epidemiological characteristics of hypothyroidism, including subclinical hypothyroidism (Shypo) and overt hypothyroidism (Ohypo) in those aged ≥65 years from iodine-adequate areas and reveal the correlation between TAI and hypothyroidism in the elderly of different ages.MethodsIt was a cross-sectional study involving 2,443 subjects aged ≥65 years from two iodine-adequate areas in China by cluster sampling. They were assigned to the 65–69-, 70–79-, and ≥80-year-old age group. All subjects were surveyed by questionnaires and received physical examinations, laboratory testing, and thyroid ultrasound. Epidemiological characteristics of thyroid diseases in the elderly were compared among the three groups. Risk factors for hypothyroidism were predicted by binary logistic regression analysis.ResultsThe median urinary iodine level was 238.70 (197.00, 273.70) μg/L. Thyroid peroxidase antibody or thyroglobulin antibody positivity (11.87%) and Shypo (9.13%) were common in the elderly. The prevalence of hypothyroidism in the elderly increases with age. TAI was a risk factor for Shypo (OR, 1.94; 95% CI, 1.35, 2.80; p < 0.01) and Ohypo (OR, 7.64; 95% CI, 3.40, 17.19; p < 0.01) in elderly Chinese. There was an age-specific correlation between TAI and hypothyroidism in the elderly. However, a significant correlation was not identified between TAI and hypothyroidism in ≥80-year-old age group (p > 0.05).ConclusionHypothyroidism, particularly Shypo, is common in the elderly from iodine-adequate areas in China. TAI serves as a risk factor for hypothyroidism in the elderly, with an age-specific correlation with hypothyroidism.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1664-2392
Relation: https://www.frontiersin.org/articles/10.3389/fendo.2023.1216308/full; https://doaj.org/toc/1664-2392
DOI: 10.3389/fendo.2023.1216308
Access URL: https://doaj.org/article/6b4f34093e11403c9f3e4d1bac2a35a7
Accession Number: edsdoj.6b4f34093e11403c9f3e4d1bac2a35a7
Database: Directory of Open Access Journals
More Details
ISSN:16642392
DOI:10.3389/fendo.2023.1216308
Published in:Frontiers in Endocrinology
Language:English