First, we did not collect the medication history of oral hypoglycemic drugs in our questionnaire, which may influence the levels of serum MBL. Second, because only three SNPs of the MBL2 gene were selected, the associations between the seven MBL2 haplotypes and type 2 diabetes and diabetic nephropathy were not discussed. The gene discussed is MBL2; the disease is type 2 diabetes mellitus.