Table 1: Consensus criteria for staging of aGVHD.

Grade Skin Liver Gut

(I) MildMaculopapular skin area 25~50% of bodyNormalDiarrhea volume 500–1000 mL/day; nausea and emesis
(II) ModerateMaculopapular skin area 50~100% of bodySerum bilirubin < 51 μmol/LDiarrhea volume 1000~1500 mL/day; nausea and emesis
(III) SevereMaculopapular skin area 50~100% of bodySerum bilirubin 51~256 μmol/LDiarrhea volume > 1500 mL/day; nausea and emesis
(IV) Life threateningGeneralized exfoliative dermatitis or ulcerative dermatitis, simplexSerum bilirubin > 256 μmol/LSevere abdominal pain, with bloody diarrhea or intestinal obstruction