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Table 1 Demographic and clinical characteristics of study patients

From: Use of rituximab in idiopathic retroperitoneal fibrosis

CharacteristicNo. (%)
No. of patients10
Age of onset, yearsa58.5 ± 11.6
Gender
 Male8 (80)
 Female2 (20)
Presenting Symptoms
 Flank Pain4 (40)
 Abdominal Pain2 (20)
 Nausea2 (20)
 Incidental Finding2 (20)
 Back Pain1 (10)
 Constipation1 (10)
 Weight Loss1 (10)
 Polyuria1 (10)
Baseline Lab Parameters
 IgG4 (g/L)0.1–4.6
 CRP (mg/L)1.7–44.1
 WBC (109/L)8.9 ± 2.5
 Hematocrit (L/L)0.42 ± 0.36
 Albumin (g/L)40.0 ± 2.7
 Creatinine (umol/L)105.3 ± 19.7
Biopsy Proven Disease
 Idiopathic RPF9 (90)
 Biopsy Declined1 (10)
Past Treatment History
 Prednisone4 (40)
 Azathioprine3 (30)
Disease Duration Pre-Rituximab, monthsa17 ± 13
Concurrent Treatment with Rituximab
 Prednisone3 (30)
 None7 (70)
  1. aMean ± SD