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Each additional annual blood donation was associated with a 7.5% lower risk of death
Tuesday, July 03, 2018 12:49 pm Email this article
Studies have repeatedly demonstrated that blood donors experience lower mortality than the general population, but some have suggested that this may be due to healthier people donating blood.
A 2015 analysis of the Scandinavian Donation and Transfusion database (SCANDAT) found that after adjusting for the internal healthy donor effect, each additional annual donation of blood was associated with a 7.5% decreased risk of death over some number of years.
(I’m waiting for a copy of the study to find out the average number of years of follow-up.)
In other words, the more frequent someone donated blood, the lower their risk of death.
The analyses included 1,182,495 donors of whom 15,401 died during 9,526,627 person-years of follow-up.
Ullum H, Rostgaard K, Kamper-Jorgensen M, Reilly M, Melbye M, Nyren O, Norda R, Edgren G, and Hjalgrim H. Blood donation and blood donor mortality after adjustment for a healthy donor effect. Transfusion, 2015 Oct; 55(10): 2479-2485.
Author’s Contact Info
Marie Reilly, PhD
Department of Medical Epidemiology and Biostatistics (MEB), C8
SE-171 77 Stockholm, Sweden
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