{"title":"Hypothyroidism is a risk factor for transient ischemic attack: A meta-analysis.","authors":"Jian Li, Hui Liu, Yan Li","doi":"10.15537/smj.2025.46.2.20240508","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate whether hypothyroidism is a risk factor for transient ischemic attack (TIA).</p><p><strong>Methods: </strong>We systematically searched Embase, PubMed, Cochrane, Vipers database, China Biomedical Literature Database, Wanfang Data, and China National Knowledge Infrastructure for studies assessing the association between hypothyroidism and TIA (publication cut-off in May 2024). Two researchers independently extracted the data based on inclusion and exclusion criteria. Meta-analysis was carried out using Review Manager 5.3 software.</p><p><strong>Results: </strong>A total of 7 studies (combined n=190248) were included. Hypothyroidism showed a significant association with TIA (risk ratio [RR]=1.43 [95% confidence interval [CI]: [1.29-1.57]). The association was significant in clinical hypothyroidism (RR=1.45 [95% CI: [1.31-1.62]) but not evident in subclinical hypothyroidism (RR=1.20 [95% CI: [0.90-1.61]). Sensitivity analysis confirmed the stability and reliability of the results from the 7 studies (Begg's test z=1.2, <i>p</i><0.01). No significant publication bias was detected in the meta-analysis.</p><p><strong>Conclusion: </strong>Hypothyroidism, particularly clinical hypothyroidism, may be an independent risk factor for TIA.<b>PROSPERO No. ID: CRD42024552608</b>.</p>","PeriodicalId":21453,"journal":{"name":"Saudi Medical Journal","volume":"46 2","pages":"117-123"},"PeriodicalIF":1.7000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11822933/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Saudi Medical Journal","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.15537/smj.2025.46.2.20240508","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
引用次数: 0
Abstract
Objectives: To evaluate whether hypothyroidism is a risk factor for transient ischemic attack (TIA).
Methods: We systematically searched Embase, PubMed, Cochrane, Vipers database, China Biomedical Literature Database, Wanfang Data, and China National Knowledge Infrastructure for studies assessing the association between hypothyroidism and TIA (publication cut-off in May 2024). Two researchers independently extracted the data based on inclusion and exclusion criteria. Meta-analysis was carried out using Review Manager 5.3 software.
Results: A total of 7 studies (combined n=190248) were included. Hypothyroidism showed a significant association with TIA (risk ratio [RR]=1.43 [95% confidence interval [CI]: [1.29-1.57]). The association was significant in clinical hypothyroidism (RR=1.45 [95% CI: [1.31-1.62]) but not evident in subclinical hypothyroidism (RR=1.20 [95% CI: [0.90-1.61]). Sensitivity analysis confirmed the stability and reliability of the results from the 7 studies (Begg's test z=1.2, p<0.01). No significant publication bias was detected in the meta-analysis.
Conclusion: Hypothyroidism, particularly clinical hypothyroidism, may be an independent risk factor for TIA.PROSPERO No. ID: CRD42024552608.
期刊介绍:
The Saudi Medical Journal is a monthly peer-reviewed medical journal. It is an open access journal, with content released under a Creative Commons attribution-noncommercial license.
The journal publishes original research articles, review articles, Systematic Reviews, Case Reports, Brief Communication, Brief Report, Clinical Note, Clinical Image, Editorials, Book Reviews, Correspondence, and Student Corner.