Supplementary Table 2.Univariate analyses of risk factors for intestinal GVHD (≥grade 2) Univariate variables Age of patient (y), continuous Sex of patient Male Female Sex pair (donor-recipient) Female to male Others Donor Type(1) Sibling Unrelated Sources of graft BM PBSC Pre-SCT disease status Standard Advanced* ATG given as conditioning Yes No Conditioning regimen TBI based Non-TBI based GVHD prophylaxis CS based FK506 based ABO match Match Mismatch T cell/MDSC ratio† Low High Multivariate variables RR (95% CI) P 0.97 (0.92-1.02) 0.259 1 1.50 (0.46-4.90) 0.498 1 8.16 (0.97-68.7) 0.054 1 2.31 (0.73-7.28) 0.154 1 1.41 (0.41-4.83) 0.586 1 2.31 (0.68-7.89) 0.183 1 1.47 (0.77-4.56) 0.508 1 1.25 (0.36-4.31) 0.726 1 2.31 (0.73-7.28) 0.154 1 1.18 (0.38-3.67) 0.770 1 3.79 (1.10-13.04) 0.035 RR (95% CI) P Sex pair (donor-recipient) Female to male 1 Others 13.32 (1.37-129.6) 0.026 T cell/MDSC ratio† Low 1 High 6.13 (1.52-24.7) 0.001 Abbreviations; ATG, antithymocyte globulin; BM, bone marrow; CS, cyclosporine; F, female; GVHD, graftversus-host disease; M, male; PBSC, peripheral blood stem cell; TBI, total body irradiation; y, year-old. * Advanced disease status at transplantation includes acute leukemia beyond the first remission, high-risk myelodysplatic syndrome (international prognostic scoring systemintermediate-2) † Low vs. High grouped by median value of T cell/MDSC ratio