Objective To analyze the correlations of hyperuricemia (HU) with dietary vitamin D intake in male youngsters, in order to provide new preventive method to male youngsters with HU. Methods Totally 800 male youngsters undergoing health examination in Yueqing People's Hospital Affiliated to Wenzhou Medical University from January 2019 to October 2020 were enrolled into this study and were divided into study group(HU group,n=380) and control group(n=420) according to the serum level of uric acid. The serum levels of vitamin 25(OH)D3, TC, HDL-C, LDL-C, TG, fasting blood-glucose (FBG), calcium and phosphate were detected and compared between the two groups. The dietary vitamin D intake was assessed using a validated semi-quantitative food frequency questionnaire and compared between the two groups. The correlations of the serum levels of uric acid with the serum levels of vitamin 25(OH)D3 and the dietary vitamin D intake were confirmed by Pearson linear correlation analysis. The risk factors of HU to the above indexes were confirmed by multivariate Logistic analysis. The diagnostic value of the dietary vitamin D intake to the HU of the male youngsters was analyzed by receiver operating characteristic curves (ROC). Results Compared with control group, the serum levels of vitamin 25(OH)D3, HDL-C and the dietary vitamin D intake of the study group were significantly lower (t=4.863, 23.791, 12.347, P<0.05), while the serum levels of LDL-C and TC of the study group were higher (t=10.606, 12.090, P<0.05). But there were no significant difference on the serum levels of TG, FBG, calcium and phosphate between the two groups (P>0.05). The negative correlations of the serum levels of uric acid with serum levels of vitamin 25(OH)D3 (r=-0.803, P=0.024) and the dietary vitamin D intake (r=-0.726, P=0.031) were found. Multivariate Logistic analysis showed that the higher serum levels of vitamin 25(OH)D3 and the higher dietary vitamin D intake were independent protective factors for HU in male youngsters (OR=0.465, 0.245, P<0.05). When the cut-off point of the dietary vitamin D intake was 4.8 μg/d, the AUC of predictions to the HU in male youngsters was 0.816 and the sensitivity was 88.4% and specificity was 92.3%. Conclusions Dietary vitamin D intake and the serum levels of vitamin 25(OH)D3 are negatively associated with HU in male youngsters. The male youngsters with HU should enhance the dietary vitamin D intake and improve the serum levels of vitamin 25(OH)D3.
Key words
hyperuricemia /
vitamin D /
vitamin 25(OH)D3 /
youngsters /
ROC analysis
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