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Serum ferritin, iron status and plasma ascorbic acid in 40- to 49-year-old males in the Faroe Islands



Serum ferritin, iron status and plasma ascorbic acid in 40- to 49-year-old males in the Faroe Islands



Scandinavian Journal of Clinical and Laboratory Investigation 50(5): 559-564



Iron status (haemoglobin, S-ferritin, S-iron, S-transferrin, and transferrin saturation) was evaluated in an epidemiological survey comprising a representative sample of 118 (4%) of the 40- to 49-year-old Faroese male population [Faroe Islands, North Atlantic Ocean]. All had normal haemoglobin, (mean .+-. SD 153 .+-. 9 g/l; 9.5 .+-. 0.6 mmol/l). Median S-ferritin was 151 .mu.g/l, 5-95 percentile 46-588 .mu.g/l, observed range 33-1166 .mu.g/l. None had depleted iron stores (S-ferritin .ltoreq. 20 .mu.g/l), 2.5% had 'small' iron stores (S-ferritin 21-40 .mu.g/l), 80.5% had 'normal' iron stores (S-ferritin 41-300 .mu.g/l) and 17% had 'increased' iron stores (S-ferritin > 300 .mu.g/l). Transferrin saturation values were > 16% in all males; high values > 50% were found in 9.3%, and the combination of high transferrin saturation and S-ferritin > 300 .mu.g/l was found in 3.4% of the males. Median P-ascorbic acid was 26 .mu.mol/l, 5-95 percentile 7-67 .mu.mol/l; significantly higher in subjects taking vitamin supplements (n = 35, median 50 .mu.mol/l) than in those not taking supplements (n = 81, median 23 .mu.mol/l) (p < 0.0001). There was no correlation between P-ascorbic acid and iron status markers. The results indicate a high frequency of ample iron reserves in the Faroese male population.

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Accession: 002219756

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PMID: 2237268

DOI: 10.1080/00365519009089171



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