Tamara van Donge

Chapter 10 206 Table 3: Values for eight kidney biomarkers (mean (SD), median (IQR) and minimum and maximum values). Group differences for untransformed measurements tested using Kruskal-Wallis test. 0-2 years (N=20) 2-5 years (N=22) Albumin, g/L Mean (SD) 37.2 (3.9) 36.2 (6.4) Median (Q1, Q3) 36.6 (34.7, 40.1) 36.7 (34.0, 39.7) Min – max 29.1 - 45.1 17.8 - 47.0 Beta 2-microglobulin, mg/L Mean (SD) 2.1 (0.4) 1.7 (0.4) Median (Q1, Q3) 2.1 (1.9, 2.3) 1.6 (1.5, 1.9) Min – max 1.4 - 2.7 1.0 - 2.8 Beta-trace protein, mg/L Mean (SD) 0.9 (0.2) 0.8 (0.2) Median (Q1, Q3) 0.9 (0.8, 1.0) 0.8 (0.6, 0.8) Min – max 0.7 - 1.1 0.5 - 1.0 Creatinine enzymatic, µmol/L Mean (SD) 20.5 (2.7) 27.8 (7.2) Median (Q1, Q3) 20.0 (19.0, 22.0) 27.5 (24.3, 31.8) Min – max 15.0 - 27.0 12.0 - 42.0 Cystatin C, mg/L Mean (SD) 1.1 (0.20) 0.9 (0.2) Median (Q1, Q3) 1.1 (0.9, 1.2) 0.9 (0.8, 1.0) Min – max 0.8 - 1.5 0.4 - 1.3 Kidney injury molecule-1, ng/L Mean (SD) 2465.3 (2344.0) 3729.7 (4659.3) Median (Q1, Q3) 1713.4 (401.9, 4125.0) 1824.6 (695.7, 5974.1) Min – max 21.1 - 7710.7 319.9 - 19290.0 NGAL, µg/L Mean (SD) 34.0 (20.8) 41.2 (20.0) Median (Q1, Q3) 36.0 (17.8, 50.3) 44.5 (30.5, 53.0) Min – max 2.0 - 77.0 0.0 - 84.0 Uromodulin, µg/L Mean (SD) 143.4 (88.01) 139.8 (63.8) Median (Q1, Q3) 111.9 (77.9, 188.3) 132.4 (93.5, 202.8) Min – max 47.4 - 387.4 24.6 - 246.1