Figure 1From: KNOW-CKD (KoreaN cohort study for Outcome in patients With Chronic Kidney Disease): design and methods Age-adjusted modified Charlson comorbidity index in total and subgroup participants, KNOW-CKD 2011–2013. Abbreviations: GN, glomerulonephritis; DN, diabetic nephropathy; HTN, hypertensive nephropathy; PKD, polycystic kidney disease.Back to article page