Figure 1From: Urinary N-acetyl-β-D glucosaminidase as a surrogate marker for renal function in autosomal dominant polycystic kidney disease: 1 year prospective cohort study The association of urinary NAG/Cr levels from different time points. A linear regression analyses showed that the baseline urinary NAG/Cr level was in a good correlation with subsequent urinary NAG/Cr measurements at 6 months and 12 months (r 2 = 0.437 and 0.436, P < 0.001).Back to article page