TABLE 4.
Laboratory findings at admission in kidney diseases based on renal biopsies comparing 2020 with 2019.
| 2020 | 2019 | P value | |
| ANCA GN | |||
| Median creatinine (IQR) – mg/dL | 3.26 (1.2–3.96) | 2.28 (1.12–4.8) | 0.9111 |
| Median BUN (IQR) – mg/dL | 33 (19–39) | 43 (24.8–75.8) | 0.1219 |
| Median proteinuria (IQR) – mg/L | 812 (476–3584) | 1334 (549–1898) | 0.7375 |
| Median uACR (IQR) – mg/g | 1222 (376–4925) | 703 (217–1047) | 0.1645 |
| Median hemoglobinuria– no. (%) | 6 (66.7) | 17 (100) | 0.0114 |
| Acute interstitial nephritis | |||
| Median creatinine (IQR) – mg/dL | 1.07 (0.975–2) | 2.78 (2.1–8.55) | 0.0091 |
| Median BUN (IQR) – mg/dL | 20 (16.5–46) | 48 (24.3–80.8) | 0.0343 |
| Median proteinuria (IQR) – mg/L | 459 (353–2357) | 207 (129–859) | 0.0268 |
| Median uACR (IQR) – mg/g | 1313 (267–2099) | 53.3 (30–654) | 0.0294 |
| Median hemoglobinuria– no. (%) | 7 (87.5) | 5 (50) | 0.0935 |
| IgA nephropathy | |||
| Median creatinine (IQR) – mg/dL | 1.5 (0.935–3.49) | 2.18 (1.28–4.87) | 0.5726 |
| Median BUN (IQR) – mg/dL | 26.5 (20.5–73.3) | 35.5 (17.8–56) | 0.9844 |
| Median proteinuria (IQR) – mg/L | 563 (256–1380) | 1252 (792–2168) | 0.2743 |
| Median uACR (IQR) – mg/g | 399 (105–1867) | 933 (298–1755) | 0.5726 |
| Median hemoglobinuria– no. (%) | 6 (75) | 9 (90) | 0.3961 |
| Diabetic nephropathy | |||
| Median creatinine (IQR) – mg/dL | 1.29 (0.76–1.52) | 2.5 (1.98–4.24) | 0.0047 |
| Median BUN (IQR) – mg/dL | 17 (13–19) | 46 (31.5–77.5) | 0.0032 |
| Median proteinuria (IQR) – mg/L | 2536 (214–5755) | 623 (165–2861) | 0.6426 |
| Median uACR (IQR) – mg/g | 2167 (135–3371) | 491 (31.9–3737) | 0.6426 |
| Median hemoglobinuria– no. (%) | 4 (57.1) | 6 (46.2) | 0.6392 |
| FSGS | |||
| Median creatinine (IQR) – mg/dL | 1.68 (1.24–2.47) | 1.59 (0.758–2.96) | 0.6359 |
| Median BUN (IQR) – mg/dL | 32 (20–62.5) | 28 (16.5–53.5) | 0.5519 |
| Median proteinuria (IQR) – mg/L | 368 (336–1104) | 750 (159–2409) | 0.5846 |
| Median uACR (IQR) – mg/g | 226 (34.4–694) | 1175 (309–4218) | 0.1718 |
| Median hemoglobinuria– no. (%) | 4 (66.7) | 7 (50) | 0.4924 |
| Hypertensive nephropathy | |||
| Median creatinine (IQR) – mg/dL | 2.69 (1.32–3.36) | 1.49 (1.2–2.2) | 0.2105 |
| Median BUN (IQR) – mg/dL | 48 (25–49) | 31 (19.5–64.5) | 0.4066 |
| Median proteinuria (IQR) – mg/L | 860 (258–3000) | 132 (50.6–476) | 0.0093 |
| Median uACR (IQR) – mg/g | 300 (112–1948) | 29 (13.5–518) | 0.0813 |
| Median hemoglobinuria– no. (%) | 6 (85.7) | 1 (12.5) | 0.0046 |
| Lupus nephritis | |||
| Median creatinine (IQR) – mg/dL | 1.91 (0.73–2.12) | 0.85 (0.655–1.37) | 0.1738 |
| Median BUN (IQR) – mg/dL | 22 (12–31) | 13 (11.5–18) | 0.1620 |
| Median proteinuria (IQR) – mg/L | 372 (169–765) | 1417 (67.8–2584) | 0.5350 |
| Median uACR (IQR) – mg/g | 106 (68.4–2505) | 1337 (30–3337) | 0.7104 |
| Median hemoglobinuria– no. (%) | 5 (71.4) | 4 (50) | 0.3980 |
For group comparisons, the Mann-Whitney U-test was used to determine differences in medians. Non-parametric between-group-comparisons were performed with Pearson’s Chi-square test. Bold indicates statistically significant values at group level. ANCA, anti-neutrophil cytoplasmic antibodies; BUN, blood urea nitrogen; CRP, C-reactive protein; FSGS, focal segmental glomerulosclerosis; GN, glomerulonephritis; IgA, immunoglobulin A; IQR, interquartile range; No., number; uACR, albumin:creatinine ratio.