Table 5.
Cutoff values of contraindications for kidney biopsy
| NF median (IQR), mean (SD) | PF median (IQR), mean (SD) | |
|---|---|---|
| Bleeding diathesis | ||
| PT-INR | 1.5 (1.5–1.6), 1.6 (0.3) | 1.5 (1.5–2.0), 1.6 (0.4) |
| APTT (s) | 45 (40–50), 47 (11) | 50 (45–50), 52 (16) |
| Bleeding time (min) | 5.0 (5.0–5.0), 4.8 (1.6) | 5 (5–5), 4.8 (0.6) |
| Platelet count, × 104/mm3 | 5.0 (5.0–10.0), 6.6 (2.5) | 9.0 (5.0–10.0), 7.5 (3.2) |
| Kidney function | ||
| Serum creatinine, mg/dl | 3.0 (2.0–3.0), 3.2 (1.5) | 3.3 (3.0–4.0), 4.0 (2.3) |
| eGFR, ml/min/1.73 m2 | 30 (15–30), 25 (9.2) | 30 (20–30), 29 (12) |
| Kidney sizea | ||
| Major axis, mm | 80 (80–90), 83 (68) | - |
| Cortical thickness, mm | 9 (5–10), 8.8 (4.5) | - |
| Blood pressure | ||
| Systolic blood pressure, mmHg | 180 (160–180), 175 (18) | 150 (140–155), 153 (20) |
| Diastolic blood pressure, mmHg | 100 (100–110), 106 (9) | 100 (90–100), 96 (7) |
| Anemia | ||
| Hemoglobin, g/dL | 8.0 (7.0–9.0), 8.0 (1.1) | 7.0 (6.0–8.0), 7.1 (1.2) |
NF, nephrology facilities for adult patients, PF pediatric nephrology facilities for child and adolescent patients
aPediatric nephrologists were not asked the questions on kidney size, because kidney sizes of children vary depending on age