Figure 2:

Peri-collection donors Hb concentrations stratified based on volume of BM harvest. Volume of bone marrow harvested is expressed as percentage of donor’s blood volume. Note: Among donors who received blood transfusion, the post-marrow collection CBC before vs. after the transfusion came from 2 mutually exclusive subsets of the population, depending on whether the post-collection CBC was obtained before or after the transfusion. The before and after transfusion data for the “No Blood Transfusion” group are the same data because these donors did not receive blood transfusion.)