Dietary iron bioavailability: Agreement between estimation methods and association with serum ferritin concentrations in women of childbearing age

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dc.contributor.authorDe Carli E.
dc.contributor.authorDias G.C.
dc.contributor.authorMorimoto J.M.
dc.contributor.authorMarchioni D.M.L.
dc.contributor.authorColli C.
dc.date.accessioned2024-03-12T23:57:53Z
dc.date.available2024-03-12T23:57:53Z
dc.date.issued2018
dc.description.abstract© 2018 by the authors. Licensee MDPI, Basel, Switzerland.Predictive iron bioavailability (FeBio) methods aimed at evaluating the association between diet and body iron have been proposed, but few studies explored their validity and practical usefulness in epidemiological studies. In this cross-sectional study involving 127 women (18–42 years) with presumably steady-state body iron balance, correlations were checked among various FeBio estimates (probabilistic approach and meal-based and diet-based algorithms) and serum ferritin (SF) concentrations. Iron deficiency was defined as SF < 15 µg/L. Pearson correlation, Friedman test, and linear regression were employed. Iron intake and prevalence of iron deficiency were 10.9 mg/day and 12.6%. Algorithm estimates were strongly correlated (0.69≤ r ≥0.85; p < 0.001), although diet-based models (8.5–8.9%) diverged from meal-based models (11.6–12.8%; p < 0.001). Still, all algorithms underestimated the probabilistic approach (17.2%). No significant association was found between SF and FeBio from Monsen (1978), Reddy (2000), and Armah (2013) algorithms. Nevertheless, there was a 30–37% difference in SF concentrations between women stratified at extreme tertiles of FeBio from Hallberg and Hulthén (2000) and Collings’ (2013) models. The results demonstrate discordance of FeBio from probabilistic approach and algorithm methods while suggesting two models with best performances to rank individuals according to their bioavailable iron intakes.
dc.description.issuenumber5
dc.description.volume10
dc.identifier.doi10.3390/nu10050650
dc.identifier.issn2072-6643
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35531
dc.relation.ispartofNutrients
dc.rightsAcesso Aberto
dc.subject.otherlanguageAlgorithm
dc.subject.otherlanguageIron status
dc.subject.otherlanguageProbabilistic approach
dc.titleDietary iron bioavailability: Agreement between estimation methods and association with serum ferritin concentrations in women of childbearing age
dc.typeArtigo
local.scopus.citations11
local.scopus.eid2-s2.0-85047351915
local.scopus.subjectAdolescent
local.scopus.subjectAdult
local.scopus.subjectAlgorithms
local.scopus.subjectAnemia, Iron-Deficiency
local.scopus.subjectBiological Availability
local.scopus.subjectBiomarkers
local.scopus.subjectBrazil
local.scopus.subjectCross-Sectional Studies
local.scopus.subjectFemale
local.scopus.subjectFerritins
local.scopus.subjectGenetic Fitness
local.scopus.subjectHumans
local.scopus.subjectIron, Dietary
local.scopus.subjectMaternal Age
local.scopus.subjectModels, Biological
local.scopus.subjectPredictive Value of Tests
local.scopus.subjectPrevalence
local.scopus.subjectProbability
local.scopus.subjectReproducibility of Results
local.scopus.subjectYoung Adult
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85047351915&origin=inward
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