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We have studied the number of days alive outside Hospital (DAOH) and the number of re-admissions within the first 100 days after transplant in 185 patients who received an allogeneic hemopoietic stem cell transplant (HSCT). The donors were matched siblings (SIB; n=61), or alternative donors (ALT; n=124). The median number of DAOH for SIB transplants (78 days) was significantly greater than DAOH for ALT donor grafts (73 days) (p=0.0003) . Other positive predictors of DAOH were the use of reduced intensity regimens (p=0.01), grade 0-I graft versus host disease (GvHD) (p=0.0006) and a comorbidity index equal or less than two (p=0.04). Fifty one patients required re-admission (22%), which was predicted by grade II-IV GvHD (p=0.009), higher comorbidity index (p=0.06) and ALT donors as compared to SIBS (p=0.08). The CI of re-admission was 18% for SIB and 30% for ALT donor grafts. The non relapse mortality (NRM) for patients re-admitted was 25%, compared to 5% for patients not readmitted (p=0.0001). In a multivariate analysis re-admission was the strongest predictor of non relapse mortality (NRM) (p=0.0006) and survival (p<0.0001).
In conclusions: ALT donor transplants have lower numbers of DAOH, as compared to SIB grafts, which implies longer stay in hospital and greater cost. Re-admission to Hospital within 100 days, is predicted by GvHD, comorbidity index, donor type, and has a very strong impact on non relapse mortality and survival.
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