Table 1 Patient characteristics of 66 patients with biopsy-proven IgA vasculitis nephritis (IgAVN) at onset of nephritis. The number of patients varies because of missing values
From: Early clinical course of biopsy-proven IgA vasculitis nephritis
median (interquartile range) | ||
Age at diagnosis of IgAVN (n = 66) | 8.9 (6.1–11.4) years | |
Days from IgAV to first nephritic symptoms (n = 66) | 11.5 (1–31) days | |
Days from first nephritic symptoms to biopsy (n = 66) | 30 (9–57) days | |
n | % | |
Clinical symptoms (n = 66) | ||
Edema | 22 | 30.3 |
Hypertension | 15 | 22.7 |
Purpura | 62 | 93.9 |
Arthritis | 25 | 37.9 |
Abdominal pain | 41 | 62.1 |
Serum albumin | ||
Decreased serum albumin (n = 51) | 32 | 62.8 |
Median serum albumin (n = 51) | 33 (30–39.2) mg/dl | |
Proteinuria | ||
Non-nephrotic-range proteinuria (n = 61) | 10 | 16.4 |
Nephrotic-range proteinuria (n = 61) | 49 | 80.3 |
No proteinuria (n = 61) | 2 | 3.3 |
Median proteinuria (n = 59) | 3.7 (1.9 – 6.4) g/g creatinine | |
eGFR | ||
Impaired renal function (n = 64) | 32 | 50.0 |
Median eGFR (n = 63) | 86.7 (75.3 – 118.0) ml/min/1.73m2 | |
Hematuria | ||
Microscopic hematuria (n = 65) | 62 | 95.4 |
Macroscopic hematuria (n = 65) | 20 | 30.8 |
Nephrotic syndrome (n = 64) | 9 | 14.1 |
Nephritic syndrome (n = 64) | 24 | 37.5 |
Nephrotic-nephritic syndrome (n = 64) | 8 | 12.5 |