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  • Author: Li-Ni Song x
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Xi Cao Beijing Diabetes Institute, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Ming Lu Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Rong-Rong Xie Beijing Diabetes Institute, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Li-Ni Song Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Wei-Li Yang Beijing Diabetes Institute, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Zhong Xin Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Guang-Ran Yang Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Jin-Kui Yang Beijing Diabetes Institute, Beijing Tongren Hospital, Capital Medical University, Beijing, China

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Aims

In this study, we determined the association between thyroid-stimulating hormone (TSH) and diabetic macular edema (DME) by assessing the prevalence and risk factors for DME in type 2 diabetes mellitus (T2DM) patients with different thyroid dysfunctions.

Methods

This was a retrospective cross-sectional study including 1003 euthyroid and 92 subclinical hypothyroidism (SCH) T2DM patients. DME status was detected by optical coherence tomography (OCT). The association between TSH and DME and the impact of TSH on DME were analyzed.

Results

The DME prevalence was 28.3% in the SCH patients and 14.0% in the euthyroid population. The serum FT4 (P = 0.001) and FT3 (P < 0.001) levels were significantly higher in the non-DME group than in the DME group, and the TSH level (P < 0.001) was significantly lower. Four subgroups (G1–G4) were divided by TSH level, and the chi-square test indicated that even in the normal range, the TSH level was positively related to DME prevalence (P = 0.001). Subgroup data indicated that the association between TSH and DME detected by OCT (P = 0.001) was stronger than the correlation between TSH and diabetic retinopathy detected by digital retinal photographs (P = 0.027). The logistic regression model confirmed that elevated TSH was an independent risk factor for DME. The odds ratio was 1.53 (P = 0.02).

Conclusions

A high TSH level was an independent risk factor for DME. More attention should be given to the TSH level in T2DM patients due to its relationship with diabetic complications.

Article Type:
Research Article
Collections:
Metabolic Syndrome and Diabetes
DOI:
https://doi.org/10.1530/EC-22-0122
Volume/Issue:
Volume 11: Issue 7
Open access