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Hypo Vs. Hyperthyroid Eye Disease: Is There Any Difference? Publisher Pubmed



Eshraghi B1 ; Pourazizi M1 ; Abbasi M1 ; Mohammadbeigy I1
Authors

Source: BMC Ophthalmology Published:2023


Abstract

Background: Thyroid-eye disease (TED) is the most common extra-thyroidal presentation of graves’ disease. We performed this study to compare clinical characteristics of TED in hypothyroid vs. hyperthyroid patients. Methods: This was a retrospective analytical cross-sectional study in which we compared demographics, severity (EUGOGO classification) and activity (clinical activity score) of TED, thyroid disease duration, TED duration and clinical signs between hypothyroid eye disease (Ho-TED) and hyperthyroid eye disease (Hr-TED). To minimize the effect of selection bias and potential confounders, 1:1 propensity score matching (PSM) was also performed. Results: Three hundred and seventy-four patients (341 Hr-TED and 33 Ho-TED) with a female to male ratio of 1.4:1 were identified in our study. Female to male ratio was 1.3:1 in hyperthyroid and 4.5:1 in hypothyroid group (P = 0.005). The duration of thyroid disease was longer in Ho-TED (P = 0.002) while the duration of eye disease was not significantly different between the Hr-TED (mean = 24.33 ± 41.69, median = 8) and Ho-TED (mean = 19.06 ± 33.60, median = 12) (P = 0.923). Most of the patients in hypothyroid group developed eye involvement after thyroid disease (80.0% in hypo vs. 48.1% in hyper, P = 0.003). Severity (P = 0.13) and activity (P = 0.11) was not different between Hr-TED and Ho-TED patients. After PSM analysis, no clinical characteristics were significantly different between the two groups (P > 0.05). Conclusion: The results of our study showed several differences between the Hr/Ho TED patients including sex, duration of thyroid disease and pattern of eye involvement. After matching the two groups with statistical methods, no clinical characteristics were different between Hr-TED and Ho-TED patients. © 2023, The Author(s).
1. Epidemiological Status of Thyroid Eye Disease in Central Iran, Journal of Current Ophthalmology (2022)
3. Isfahan Thyroid Cohort Study (Itcs), Archives of Iranian Medicine (2021)
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