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Table 1 Patient demographics

From: IgG4 Related disease – a retrospective descriptive study highlighting Canadian experiences in diagnosis and management

Findings Total study All criteria HISORt Japanese Korean No criteria met
Radiological features 66 - - - - -
   Males (n, %) 50 (76%) - - - - -
   Age (years, mean) 58 - - - - -
Clinical and radiological features 55 27 (49%) 30 (55%) 31 (56%) 45 (82%) 9 (16%)
   Males (n, %) 43 (78%) 22 (81%) 25 (83%) 24 (77%) 34 (76%) 8 (%)
   Age (years, mean) 60 61 61 59 60 58
Presenting symptoms
   Jaundice 34 (62%) 20 (74%) 22 (73%) 20 (65%) 29 (64%) 5 (56%)
   Weight loss 36 (65%) 17 (63%) 19 (63%) 19 (61%) 30 (67%) 6 (67%)
   Abdominal pain 37 (67%) 18 (67%) 20 (67%) 20 (65%) 29 (64%) 7 (78%)
IgG4 (g/L, median) 5.12 5.32 5.44 5.3 4.94 7.3
IgG4 > 2 × ULN (n, %) 29 (51%) 20 (74%) 21 (70%) 24 (80%) 24 (53%) 4 (44%)
Biochemistry
   Bilirubin (μmol/L*) 20 35 34 34 21 29
   ALP (U/L*) 246 287 287 264 240 296
   ALT (U/L*) 74 94 94 81 72 91
   AST (U/L*) 57 92 92 84 58 46
Imaging Modality
   CT (n, %) 49 (86%) 23 (85%) 26 (87%) 29 (84%) 40 (89%) 8 (89%)
   MRCP (n, %) 54 (95%) 27 (100%) 30 (100%) 31 (100%) 44 (98%) 9 (100%)
   ERCP (n, %) 35 (61%) 19 (70%) 22 (73%) 19 (61%) 28 (62%) 6 (67%)
Pancreatic parenchymal changes
Typical 24 (44%) 14 (52%) 14 (47%) 14 (45%) 20 (44%) 4 (57%)
   Diffuse 5 (9%) 3 (19%) 4 (13%) 3 (10%) 4 (9%) 0 (0%)
   Multifocal 23 (42%) 11 (41%) 11 (37%) 13 (42%) 18 (40%) 5 (56%)
   Rim
Atypical 18 (33%) 5 (19%) 7 (23%) 9 (29%) 16 (36%) 2 (22%)
   Focal 5 (9%) 4 (15%) 5 (17%) 4 (13%) 5 (11%) 0 (0%)
   Atrophic       
Treatment       
Steroids 34 (62%) 19 (70%) 21 (70%) 22 (71%) 31 (69%) 3 (33%)
ERCP + Biliary stent 27 (49%) 15 (56%) 17 (57%) 15 (48%) 23 (51%) 4 (44%)
Steroids and biliary stent 16 (29%) 10 (37%) 12 (40%) 10 (32%) 16 (36%) 0 (0%)
  1. *Median.