Abstract
Objective This study adopts the method of retrospective analysis to collect general information and laboratory results of physical examination population, hoping to clarify the correlation between uric acid and thyroid hormone. Methods The subjects of the study were healthy subjects who underwent physical examination at the Sir Run Run Shaw Hospital affiliated to the Medical College of Zhejiang University from January 2016 to December 2018. Demographic information and medical history of all subjects were recorded through an electronic health system. Serum uric acid (SUA) was grouped by quartiles. Statistical analyses were performed with R version 3.5.1. Results A total of 48,526 subjects were included in the analysis. Gender ratio, age, BMI, waist circumference, systolic blood pressure, diastolic blood pressure, FBG, HbA1c, TG, HDL-C, ALT, AST, FT3, FT4, and TSH were significantly different among the uric acid groups. The regression coefficients of SUA in the TSH, FT3, and FT4 regression models were B = 1.000 (95% CI 1.000-1.000, p = 0.009), B = 0.999 (95% CI 0.999-0.999, p < 0.001), and B = 1.001 (95% CI 1.001-1.001, p < 0.001), respectively. There was a significant dose-dependent relationship between FT4, FT3, and SUA gradient. Conclusions Under normal thyroid function, there were significant differences in TSH, FT3, and FT4 between groups with different uric acid levels. Uric acid levels were linearly correlated with FT3 and FT4, but not with TSH.
Highlights
Some studies have pointed out that the correlation between thyroid hormone and uric acid level, but this correlation is still controversial
Age, BMI, waist circumference, systolic blood pressure, diastolic blood pressure, fasting blood glucose (FBG), HbA1c, TG, high-density lipoprotein cholesterol (HDL-C), ALT, AST, FT3, FT4, BUN, creatinine, and thyroid stimulating hormone (TSH) were significantly different among the uric acid groups (p < 0 05)
The results showed that after adjusting the gender, age, BMI, SBP, DBP, FBG, total cholesterol (TC), TG, low-density lipoprotein cholesterol (LDL-C), HDL-C, and Serum uric acid (SUA) were significantly correlated with TSH, FT3, and FT4
Summary
This study adopts the method of retrospective analysis to collect general information and laboratory results of physical examination population, hoping to clarify the correlation between uric acid and thyroid hormone. Demographic information and medical history of all subjects were recorded through an electronic health system. Serum uric acid (SUA) was grouped by quartiles. Age, BMI, waist circumference, systolic blood pressure, diastolic blood pressure, FBG, HbA1c, TG, HDL-C, ALT, AST, FT3, FT4, and TSH were significantly different among the uric acid groups. There were significant differences in TSH, FT3, and FT4 between groups with different uric acid levels. Uric acid levels were linearly correlated with FT3 and FT4, but not with TSH
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