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Updated: Aug 4, 2026
05:18
A Rapid and Chemical-free Hemoglobin Assay with Photothermal Angular Light Scattering
Published on: December 7, 2016
[Hemoglobin and nutrient concentration in middle-class adolescents. Relationship with school performance]
C Carruyo-Vizcaíno1, G Vizcaíno, M Diez-Ewald
1Sección de Orientación, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
Investigacion Clinica
|September 1, 1995
Summary
Adolescent iron and folate deficiency is common, especially in females, impacting academic performance. Monitoring nutrient status is crucial for cognitive and psychomotor development.
Area of Science:
- Hematology
- Nutritional Science
- Adolescent Health
Context:
- Study population: 213 adolescents (112 male, 101 female) from a medium-income group.
- Setting: Private secondary educational institution.
- Focus: Hemoglobin, iron, folic acid, and vitamin B12 levels in relation to academic achievement.
Purpose:
- To assess hematologic and nutrient status in adolescents.
- To investigate the relationship between nutrient status and academic performance.
- To identify specific nutrient deficiencies and their correlation with academic metrics.
Summary:
- High prevalence of iron (16.6%) and folate (14.2%) deficiency observed, predominantly in females.
- Anemia linked to lower Academic Achievement Index (AAI) in males (p < 0.05).
- Positive correlations found between iron status (ferritin, TIBC) and AAI in males; hemoglobin also correlated with AAI in males.
- Folic acid correlated with final grades in males, vitamin B12 in females.
Impact:
- Highlights significant iron and folate deficiencies in adolescents, particularly females.
- Suggests inadequate diet, increased needs, and parasitic infections as potential causes.
- Underscores the importance of assessing iron and folate status for optimal cognitive and psychomotor development.
- Provides evidence for the link between nutritional status and academic achievement in adolescents.
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