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Abstract Background Thyroid hormones have an effect on every organ system, in particular, the heart responds to minimal changes in serum thyroid hormone level. Thyroid hormone causes a lot of changes in the cardiovascular system, such as increased heart rate, contractility, systolic hypertension, changes in peripheral vascular resistance, atrial fibrillation (AF), and hypercoagulability from the direct effect of thyroid hormone on cardiac myocyte and /or due to increased metabolic state. However, the magnitude of such heart abnormalities and its associated factors were not well studied in Ethiopia. Objective To determine the magnitude of cardiac abnormality and its associated factors among hyperthyroidism patients on follow-up at Tikur Anbessa Specialized Hospital (TASH), Addis Ababa, Ethiopia, 2022. Methods An institution-based cross-sectional study was carried out among 318 hyperthyroid patients who were on follow-up at the endocrine clinic of TASH, Addis Ababa, Ethiopia from June to October 2022. The data were collected using a pretested structured interviewer administered questionnaire. The data were entered into the computer using EpiData version 3.1 and analyzed using SPSS version 25 software. Bivariable and multivariable logistic regression models were fitted to determine the association between the independent and dependent variables. Adjusted odds ratio with its 95% confidence interval and p-value |
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