This study confirmed the finding of previous studies, in that the prevalence of iron deficiency
increased with frequent blood donations. Of the entire study population, 20.6% and 12.0% had iron deficiency and iron-deficiency anaemia, respectively. The values of iron and haematological parameters were significantly lower in regular donors than in the other categories of donors. Simon et al. showed that 8% of men and 38% of women have reduced iron stores, as assessed by serum ferritin status, after five donations. In a large Danish study, the prevalence of depleted iron stores was found to be higher in donors than in people who did not donate blood. Furthermore in the study by Milman, 26% of regular blood donors had low ferritin levels and 12% were found to be anaemic. In Nigeria, in 1990, Usanga observed that the mean ferritin concentration of 64.75 ng/mL ± 4.6 in normal males was significantly higher than the mean value of 49.19 ng/mL among blood donors suggesting that some blood donors may have prelatent or latent iron deficiency at the time of donation and become iron deficient after blood donation.
This study confirmed the finding of previous studies, in that the prevalence of iron deficiency
increased with frequent blood donations. Of the entire study population, 20.6% and 12.0% had iron deficiency and iron-deficiency anaemia, respectively. The values of iron and haematological parameters were significantly lower in regular donors than in the other categories of donors. Simon et al. showed that 8% of men and 38% of women have reduced iron stores, as assessed by serum ferritin status, after five donations. In a large Danish study, the prevalence of depleted iron stores was found to be higher in donors than in people who did not donate blood. Furthermore in the study by Milman, 26% of regular blood donors had low ferritin levels and 12% were found to be anaemic. In Nigeria, in 1990, Usanga observed that the mean ferritin concentration of 64.75 ng/mL ± 4.6 in normal males was significantly higher than the mean value of 49.19 ng/mL among blood donors suggesting that some blood donors may have prelatent or latent iron deficiency at the time of donation and become iron deficient after blood donation.
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