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Table 1 Clinical characteristics of the patients at diagnosis

From: Predictors of outcome in idiopathic rapidly progressive glomerulonephritis (IRPGN)

n 34
Gender (M:F) 17:17 (ratio 1:1)
Age (years) 55.7 ± 17 (range 25–80 years)
ANCA (yes: no) 26:8 (ratio 3,25:1)
Type of ANCA (MPO: PR3) 17:9 (ratio 1,9:1)
Extrarenal manifestations 23 (67.6%)
Respiratory system 19 (55.9%)
Joints 12 (35.3%)
Gastrointestinal system 7 (20.6%)
Skin 5 (14.7%)
Muscles 2 (5.9%)
Genitourinary system 1 (2.9%)
Liver 1 (2.9%)
Plasma creatinine (mg/dl) 6 ± 4.2 (range 0.8–19.4 mg/dl)
Proteinuria (g/24 h) 1.4 ± 0.96 (range 0.2–4.85 g/24 h)
CRP (mg/l) 72.8 ± 78 (range 3.4–272 mg/dl)
Oligoanuria 11 (32.3%)
Dialysis 14 (41.2%)
Plasma exchange 14 (41.2%)
Follow-up (months) 20 ± 22 (range 1–72 months)
  1. Abbrev: MPO, myeloperoxidase; PR3, Proteinase 3; CRP, C-reactive protein