The data showed that the CC genotype of klotho in T2DM patients was associated with low fasting glucose (159.3 ± 45.7 mg/100 mL) and HbA1c (8.5 ± 1.8) levels compared to TT (glucose 211 ± 72.9 mg/100 mL and HbA1c 10.2 ± 2.2) and CT (glucose 178.2 ± 37.1 mg/100 mL and HbA1c 9.9 ± 1.6) genotypes. Here, KL is linked to type 2 diabetes mellitus.