The effect of pre-conditioning immunoglobulin and absolute lymphocyte count on the outcomes of allogeneic hematopoietic cell transplantation

•In allo-HCT patients, the ALL group had lower pre-conditioning Ig levels than the AML group.•But, there was no difference in transplant outcomes between the two groups.•However, in the AML group, low pre-conditioning IgM levels were also associated with increased mortality.•In addition, in the AML group, high pre-conditioning ALC a was associated with aGVHD.