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Table 2 Percentage of patients meeting diagnostic criteria

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

Diagnostic factors n = 27 (49%) All criteria met HISORt (2006) n = 30, (55%) Japanese (2006) n = 31 (56%) Korean (2007) n = 45 (82%) No criteria met n = 9 (16%)
I. Typical imaging 20 (74%) 21 (70%) 20 (65%) 27 (60%) 4 (44%)
Ia. Atypical imaging 7 (26%) 9 (30%) 11 (35%) 18 (40%) 2 (22%)
II. Lab IgG4 21 (81%) 23 (77%) 26 (84%) 26 (58%) 3 (33%)
III. Histology 7 (30%) 8 (27%) 8 (26%) 8 (18%) 0 (0.0%)
IV. Other organ involvement 18 (70%) 22 (73%) 21 (68%) 28 (62%) 2 (22%)
V. Steroid response 14 (52%) 17 (57%) 14 (45%) 23 (51%) 1 (11%)
Definite diagnosis      
  - III (8) I + II (17) I + II (18) -
     Ia + II (8)  
  - I + II (18) Ia + II (9) I + III (3) -
     Ia + III (2)  
  - Ia + II + V (2) I + III (3) I + IV (4) -
     Ia + IV (2)  
  - Ia + IV + V (2) Ia + III (2) I + V (5) -
     Ia + V (3)