title: Schoolchildren with Learning Difficulties Have Low Iron Status and High Anemia Prevalence.
abstract: Background. In developing countries there is high prevalence of iron deficiency anemia, which reduces cognitive performance, work performance, and endurance; it also causes learning difficulties and negative impact on development for infant population.Methods. The study concerns a case-control study; data was collected from an appropriate sample consisting of schoolchildren aged 8 years. The sample was divided into two subgroups: those with deficient initial reading skills (DIRS) (case) and those without (control). Blood samples were taken to analyze hemoglobin and serum ferritin levels. These results were then used to compare the two groups with Student'st-test. Association between DIRS and anemia was analyzed using odds ratio (OR).Results. Hemoglobin and serum ferritin levels of schoolchildren with DIRS were statistically lower when compared to those without, hemoglobinp= 0.02 and serum ferritinp= 0.04. DIRS was statistically associated with a risk of anemia with a weighted OR of 1.62.Conclusions. In this study, schoolchildren with DIRS had lower hemoglobin and serum ferritin levels when compared to those without.
authors.affiliation: Medical Faculty, Department of Master's Degree in Family Health, Federal University of Ceará, Sobral Campus, Av. Gerardo Rangel 100, 62.042-280 Sobral, CE, Brazil.
authors.forename: F P N
authors.identifier: 0000-0002-9020-3092
authors.initials: FP
authors.lastname: Arcanjo
authors.affiliation: Medical Faculty, University of Fortaleza, Fortaleza, CE, Brazil.
authors.forename: C P C
authors.initials: CP
authors.lastname: Arcanjo
authors.affiliation: Medical Faculty, Department of Master's Degree in Family Health, Federal University of Ceará, Sobral Campus, Av. Gerardo Rangel 100, 62.042-280 Sobral, CE, Brazil.
authors.forename: P R
authors.initials: PR
authors.lastname: Santos