Figure 1.
Participant selection for each analysis. The patients’ data from all facilities were used in the cross-sectional analysis to reveal the prevalence and risk factors of DKD. Then, to examine the characteristics of early decliners, the data of patients who had normal baseline and sequential eGFR levels were subjected to the longitudinal analysis. ACR, urinary albumin to creatinine ratio; DKD, diabetic kidney disease; eGFR, estimated glomerular filtration rate; PCR, urinary protein to creatinine ratio.