Clinical Grade
Grade I/II Grade III/IV
C4d IHC C4d IHC
  Steroid Sensitivity C4d + C4d- Total C4d + C4d- Total
Colon   Yes 6 0 6 7 1 8
  No 1 0 1 3 0 3
Total   7 0 7 10 1 11
Skin   Yes 17 11 28 3 1 4
  No 2 0 2 5 1 6
Total   19 11 30 8 2 10
Table 3: Colon and skin biopsy cases: Comparison of clinical grade, C4d IHC,and steroid sensitivity.