Association between serum magnesium concentration and metabolic syndrome, diabetes, hypertension, hyperuricemia in patients with rheumatoid arthritis / 中华风湿病学杂志

ABSTRACT

Objective:To examine the associations between serum magnesium (Mg) concentration and metabolic syndrome (MetS), diabetes (DM), hypertension (HTN), hyperuricemia (HU) in rheumatoid arthritis (RA) patients.Methods:From June 29, 2013 to February 29, 2019, 1 009 RA patients were collected at Tianjin First Central Hospital. The Mg concentration, clinical and laboratory indicators, living habits and medication were collected. The multivariate adjusted Logistic regression model was used to evaluate the relationship between Mg and MetS, DM, HTN, and HU.Results:Compared with the lowest quintile serum magnesium, In the MetS regression analysis, OR and 95% CI were 0.26 [95% CI(0.09, 0.76), P=0.01)], 0.17 [95% CI (0.06, 0.47), P<0.01], 0.27 [95% CI(0.09, 0.76), CI=0.01], and 0.22 [95% CI(0.09, 0.58), P<0.01], in second, third, fourth, and fifth (highest) quantiles of serum Mg, respectively, P for trend <0.01. In DM regression analysis, after adjusting for multiple potential confounders in Model 2, OR and 95% CI were 0.58 [95% CI (0.35, 0.96), P=0.03], and 0.51 [95% CI (0.29, 0.89), P=0.02], in third and fifth quantiles of the serum Mg, respectively, P for trend =0.01. But in model 3 this correlation disappears. HTN and HU were not associated with serum Mg ( P>0.05), P for trend >0.05. Conclusion:There was a negative correlation between serum Mg concentration and MetS in RA patients, But no correlation with HTN, HU. After adjusting the glomerular filtration rate, the negative correlation between serum Mg and DM also disappeared.