Table 1. Characteristics of the patients.
| Number of participants | 72 |
|---|---|
| Age (years) | 50 [40; 63] |
| Male | 40 (56.3) |
| Diagnosis | |
| CKD | 60 (83) |
| Candidate for living kidney donation | 12 (17) |
| Weight (kg) | 72.0 [60.5; 90.0] |
| Height (cm) | 168.0 [160.0; 174.5] |
| Body surface area (m2) | 1.83 [1.63; 2.01] |
| Body mass index (kg/m2) | 25.3 [22.3; 32.0] |
| mGFR (mL/min/1.73 m2) (n = 62) | 74.5 [53.0; 91.0] |
| eGFR (mL/min/1.73 m2) | 70.0 [39.0; 96.0] |
| mean mGFR-eGFR (95%CI), mL/min/1.73 m2 (N = 62) | -3.8 (-7.0; -0.5) |
| Plasma oxalate | |
| Plasma oxalate < 5 µmol/L | 67 (93.0) |
| Plasma oxalate ≥ 5 µmol/L | 5 (7.0) |
| CKD stages | |
| Stage I | 16 (22.2) |
| Stage II | 28 (38.9) |
| Stage IIIa | 4 (5.5) |
| Stage IIIb | 10 (13.9) |
| Stage IV | 11 (15.3) |
| Stage V | 3 (4.0) |
Values are median (IQR) or n (%) unless otherwise specified CKD: chronic kidney disease; GFR: glomerular filtration rate; IQR: interquartile range. CKD stages were determined according to mGFR or eGFR if not available.