Table 1.

Descriptive statistics at first annual follow-up visit (visit 2) and ratios from baseline visit (visit 1) to visit 2 (n = 360)

VariableVisit 2Visit 2/Visit 1
Age (yr; median [IQR])12.10 (8.80 to 15.70)1.10 (1.07 to 1.15)a
Height (m; median [IQR])1.50 (1.20 to 1.60)1.04 (1.02 to 1.06)a
Weight (kg; median [IQR])40.00 (26.00 to 56.70)1.10 (1.05 to 1.17)a
BSA (m2; median [IQR])1.30 (0.90 to 1.60)1.07 (1.04 to 1.11)a
Glomerulonephritis diagnosis (%)20
Male gender (%)61
White race (%)72
Ht/SCr (m/mg per dl; median [IQR])1.00 (0.70 to 1.30)0.96 (0.85 to 1.08)
BUN (mg/dl; median [IQR])30.0 (22.0 to 41.0)1.05 (0.86 to 1.29)
Albumin (g/dl; median [IQR])4.30 (4.10 to 4.50)1.00 (0.95 to 1.04)
Phosphate (mg/dl; median [IQR])4.70 (4.20 to 5.10)1.02 (0.95 to 1.14)
Calcium (mg/dl; median [IQR])9.70 (9.30 to 10.00)1.00 (0.97 to 1.03)
Glucose (mg/dl; median [IQR])89.00 (83.00 to 95.00)0.99 (0.88 to 1.06)
Urine protein/urine creatinine (median [IQR])0.50 (0.20 to 1.10)1.00 (0.72 to 1.55)
Hemoglobin (g/dl; median [IQR])12.70 (11.70 to 13.70)1.01 (0.95 to 1.06)
Potassium (mmol/L; median [IQR])4.50 (4.20 to 4.90)1.00 (0.94 to 1.08)
Systolic BP (mmHg; median [IQR])107.00 (99.00 to 116.00)1.01 (0.93 to 1.09)
Hem to rit (%; median [IQR])37.10 (34.20 to 40.00)1.00 (0.95 to 1.06)
Carbon dioxide (mmol/L; median [IQR])21.00 (19.00 to 23.00)1.00 (0.91 to 1.11)
Sodium (mmol/L; median [IQR])140.00 (138.00 to 141.00)1.00 (0.99 to 1.01)
Cystatin C (mg/L; median [IQR] ;n = 213)2.00 (1.60 to 2.50)1.08 (0.95 to 1.27)
iGFR (ml/min per 1.73 m2; median [IQR])42.20 (31.60 to 53.40)0.98 (0.87 to 1.11)
  • IQR, interquartile range.

  • a IQRs that do not contain 1.0.