{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T00:24:20Z","timestamp":1773015860406,"version":"3.50.1"},"reference-count":38,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T00:00:00Z","timestamp":1768867200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T00:00:00Z","timestamp":1768867200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Diabetes Invest"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Whether hypothyroidism and cardiovascular disease (CVD) are causally related remains ambiguous. A bidirectional and multivariable two\u2010sample Mendelian Randomization (MR) approach was employed to elucidate these associations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>All genome\u2010wide association study (GWAS) data were obtained from the IEU Open GWAS project. For the MR estimates, inverse variance weighted (IVW), MR\u2010Egger regression, weighted median, simple mode, and weighted mode were utilized to assess the causal relationships. Multivariate MR (MVMR) analyses were conducted to explore the direct effects. A series of sensitivity analyses was used to ensure the robustness of our findings. All analyses were replicated in the validation samples.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Higher genetically predicted hypothyroidism was causally associated with increased the risk of coronary artery disease (CAD, OR\u2009=\u20093.220, 95% CI\u2009=\u20091.082\u20139.583,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.036), myocardial infarction (MI, OR\u2009=\u20093.430, 95% CI\u2009=\u20091.088\u201310.819,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.035) and peripheral atherosclerosis (PAS, OR\u2009=\u200931.852, 95% CI\u2009=\u20095.987\u2013169.457,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001). Reversely, CAD (OR\u2009=\u20091.005, 95% CI\u2009=\u20091.001\u20131.009,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.02) and MI (OR\u2009=\u20091.006, 95% CI\u2009=\u20091.002\u20131.011,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.004) may be more likely to promote the onset of hypothyroidism. Moreover, no significant causal effects of hypothyroidism on heart failure (HF) and small vessel stroke (SVS) were observed in the discovery samples. However, in the validation samples, hypothyroidism was found to be causally associated with HF (OR\u2009=\u20091.429, 95% CI\u2009=\u20091.240\u20131.647,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001) and SVS (OR\u2009=\u20097.297, 95% CI\u2009=\u20091.440\u201336.984,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.016). For the reverse MR from PAS, HF, and SVS to hypothyroidism, no significant causal associations were identified.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study reveals suggestive evidence of the bidirectional causal associations between hypothyroidism and CAD and MI. Moreover, hypothyroidism may increase the risk of PAS.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jdi.70237","type":"journal-article","created":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T08:20:36Z","timestamp":1768897236000},"page":"499-509","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The causal effects of hypothyroidism on cardiovascular disease: Bidirectional and multivariable Mendelian randomization study"],"prefix":"10.1111","volume":"17","author":[{"given":"Xuan","family":"Bai","sequence":"first","affiliation":[{"name":"Department of Epidemiology, School of Public Health Harbin Medical University  Harbin Heilongjiang Province China"},{"name":"Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital Sichuan University  Chengdu 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