CD34 and bacterial infectious disease with sepsis: Table 3 shows multivariate analysis for risk factors of bacteremia in the early transplant period of HDCT/auto-SCT. While inclusion of TBI and/or thiotepa in the HDCT regimen and lower number of CD34+ cells (<2 ± 106/kg) were associated with more frequent Gram-positive bacteremia, older age (>100 months of age) was associated with more frequent Gram-negative bacteremia.