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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Transfusion. 2019 Jan 11;59(5):1706–1716. doi: 10.1111/trf.15133

Figure 1: CHILL study flow diagram.

Figure 1:

Number of eligible donors by age (years completed) and sex at enrollment, with total donation count during CHILL (where “Nx” represents N successful donation procedures with 1 or 2 red cell units donated per procedure). Ferritin values were available from all 4,265 enrollment donations and from 1,954 of 2,290 follow-up donations.