RARRES2 and diabetes mellitus: While no significant differences in levels of plasma chemerin were found between the two groups, logistic regression analysis revealed that only duration of diabetes (OR:1.81, 95% CI:1.392-2.330, p<0.01) and HbA1c (OR:1.252, 95% CI:1.036-1.519, p<0.05) were independent predictors of peripheral neuropathy.