We found that FGF23 was not associated with LVH among patients with CKD stage G3b and that FGF23 was not associated with low LVEF among patients with CKD stage G3b and G4 in some models (Table 3); notably, however, we found a significant association between FGF23 and LVH or low LVEF among subjects with CKD stages G3-G4, which is consistent with previous reports. This evidence concerns the gene FGF23 and chronic kidney disease.