Table 2.
Clinical characteristics at the time of hormonal onset of puberty for those with incident puberty. Median (IQR) or percent (n), or N
| Characteristic | Girls (n = 31) | Boys (n = 58) |
|---|---|---|
| Age, years | 9.9 (8.8,11.9) | 10.2 (9.2,11.0) |
| Black/African American | 29.0% (9) | 15.5% (9) |
| BMI Underweight |
12.9% (4) | 8.6% (5) |
| Normal | 58.1% (18) | 69.0% (40) |
| Overweight | 3.2% (1) | 3.4% (2) |
| Obese | 25.8% (8) | 19.0% (11) |
| CKD characteristics Duration of CKD, years |
9.7 (6.9, 11.3) | 10.2 (9.2, 11.0) |
| Glomerular disease | 19.4% (6) | 5.2% (3) |
| Baseline urine protein-creatinine-ratio, mg/mgCr | 0.6 (0.2,0.9) | 0.2 (0.1,0.6) |
| eGFR, mL/min|1.73 m2 | 39.1 (28.8,56.5) | 47.2 (38.7,61.0) |
| mGFR, mL/min|1.73 m2 | 43.1 (31.0,55.6) | 39.9 (32.7,63.1) |
| Luteinizing hormone LH concentration, IU/L |
0.6 (0.4, 2.1) | 0.5 (0.3, 1.1) |
| Distribution of longitudinal LH measurements per participant | 5 (4, 7) | 6 (4, 7) |
| Total number of LH measurements | 162 | 314 |