DPP4 and diabetes mellitus: Furthermore, subgroup analysis showed that the reduction in UACR occurred in all patient groups, regardless of baseline UACR (< 500 or ≥ 500 mg/g creatinine), eGFR, dipeptidyl peptidase 4 and sodium-glucose cotransporter 2 use, glycated hemoglobin, duration of diabetes, body mass index (< 25 or ≥ 25 kg/m2), or number of antihypertensive agents used (Online Resource 4).