Table 2.
Clinical and laboratory characteristics at the time of renal biopsy.
| Systolic blood pressure (mmHg) | 131 [120–146.2 (IQ 25–75)] |
| Diastolic blood pressure (mmHg) | 74 [68–81.2 (IQ 25–75)] |
| Median creatinine (mg/dL) | 2.58 [1.81–4.1 (IQ 25–75)] |
| Median Glomerular Filtration Rate by CKD-EPI (mL/min/1.73 m2) | 21.8 [12.7–34 (IQ 25–75)] |
| Urine protein/creatinine ratio (mg/g) | 700 [256–2463 (IQ 25–75)] |
| Urine albuminuria/creatinine ratio (mg/g) | 220 [46–1196 (IQ 25–75)] |
| Nephrotic range proteinuria | 23% |
| Hematuria | 53.1% |
| Eosinophiluria | 10.8% |
| Leukocyturia | 31.8% |
| ANCA (Neutrophil cytoplasmic antibodies) | 6.8% |
| Antinuclear antibodies | 13.5% |
| Low C3 and/or C4 serum levels | 10.1% |
| C3 mg/dL (85–180) | 127.2 (SD ± 36.8) |
| C4 mg/dL (10–40) | 28.8 (SD ± 9.6) |
| pH | 7.35 [7.29–7.39 (IQ 25–75)] |
| Bicarbonate | 21.7 (SD ± 4.9) |
| K (mmol/L) | 4.2 [4.0–4.7 (IQ 25–75)] |
| Na (mmol/L) | 138.1 [136–140 (IQ 25–75)] |
| Ca (mg/dL) | 8.9 [8.5–9.3 (IQ 25–75)] |
| Mg (mg/dL) | 1.9 [1.7–2.2 (IQ 25–75)] |
| P (mg/dL) | 4.1 [3.4–5.3 (IQ 25–75)] |
| Hb (g/dL) | 10.7 (SD ± 2.2) |
| Platelets (×109/L) | 233.5 [189–312 (IQ 25–75)] |
| Haemolytic anemia and/or low platelet | 6.8% |
Quantitative variables are expressed as mean ± standard deviation (SD) or median [Interquartile (IQ) 25–75] depending on the normality of variables. C: Complement; K: potassium, Na: sodium, Ca: calcium, Mg: magnesium, P: phosphate, Hb: hemoglobin.