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Table 3 Laboratory findings

From: New clues to the nature of immunoglobulin G4-related disease: a retrospective Japanese multicenter study of baseline clinical features of 334 cases

Test item

Value

IgG (mg/dl)

2403 ± 1204

IgG4 (mg/dl)

755 ± 642

Elevation of IgG4 (≥135)

318/333 (95.5%)

IgE (IU/ml)

611 ± 1198

Elevation of IgE (≥250)

158/309 (51.1)

CRP (mg/dl)

0.42 ± 0.94

CRP (mg/dl), median

0.10

CRP < 0.5 mg/dl

262/328 (79.9)

CRP < 1.0 mg/dl,

296/328 (90.2)

Elevation of CRP (≥0.3)

90/328 (27.4)

C3 (mg/dl)

94.6 ± 31.5

C3 < 86

103/297 (34.7)

C4 (mg/dl)

21.2 ± 23

C4 < 17

100/297 (33.7)

CH50 (U/ml)

41.1 ± 15.5

CH50 < 25

46/292 (15.8)

  1. Data presented as mean ± standard deviation or number/total (%), unless indicated otherwise
  2. CRP C-reactive protein, IgE immunoglobulin E, IgG4 immunoglobulin G4