Table 1.
Characteristics of the baseline sample of participants from the CKiD cohort and from the participant-visits taken from visit 1 and visit 2
| Variable | Value |
|---|---|
| n = 509 participants, baseline assessment | |
| male gender (%) | 62.6 |
| white race (%) | 72.1 |
| Tanner stage 1 (%) | 58.0 |
| glomerular diagnosis (%) | 20.8 |
| n = 790 participant-visits, median (interquartile range) | |
| age (years) | 11.3 (7.9 to 14.8) |
| height (m) | 1.4 (1.2 to 1.6) |
| weight (kg) | 38.2 (24.4 to 55.6) |
| BSA (m2) | 1.2 (0.9 to 1.6) |
| BMI (kg/m2) | 18.5 (16.3 to 22.1) |
| SCr (mg/dl) | 1.3 (1.0 to 1.9) |
| height (m)/SCr (mg/dl) | 1.0 (0.8 to 1.4) |
| cystatin C (mg/L)a | 1.6 (1.3 to 2.2) |
| BUN (mg/dl) | 32.1 (23.1 to 42.9) |
| albumin (g/dl) | 4.3 (4.1 to 4.5) |
| iohexol GFR (ml/min per 1.73 m2) | 43.4 (32.6 to 55.7) |
| ECV (L) | 8.6 (5.9 to 12.2) |
| ECV (L)/weight (kg) | 0.2 (0.2 to 0.3) |
a
n = 267.