Abstract

ORTEGA, Pablo; LEAL, Jorymar; AMAYA, Daysi  and  CHAVEZ, Carlos. Nutritional evaluation, micronutrient deficiencies and anemia among female adolescents in an urban and a rural zone from Zulia state, Venezuela. Invest. clín [online]. 2010, vol.51, n.1, pp.37-52. ISSN 0535-5133.

Female adolescents in reproductive age are a susceptible group to anemia and micronutrient deficiencies. The objective of this study was to know the nutritional, anthropometric and dietetic status, the prevalence of anemia, depletion of iron deposits (FeD) and Vitamin A deficiency (VAD) in female adolescents. Seventy-eight not pregnant female adolescents (15.9 ± 1.1 years old), from an urban and a periurban zone of Maracaibo, and a rural zone near this city, without infectious and inflammatory processes, were analyzed. Anemia in adolescents was considered when Hb<120 g/L; FeD: ferritin<12 µg/L; VAD serum retinol<20 µg/dL; risk of VAD (RVAD) 20-30 µg/dL. The data were analyzed with the SAS program and expressed as Means ± Standard Deviations, statistical significance was considered when p<0.05. The percentage of caloric and protean adjustment in all groups was below the daily requirements. Adolescents from the rural zone showed significant lower values of weight (p=0.0024), height (p=0.0027), body mass index BMI (p= 0.0487), fatty area (p=0.0183), MCV (p=0.0241), MCH (p=0.0488), MHCC (p=0.0228), and the highest prevalence of anemia (66.67%), anemia+FeD (33.33%), and anemia+FeD+RVAD (5.56%), with respect to adolescents from the urban zone. Although, anemic adolescents from the rural zone showed a non significant decrease of the iron percentage adjustment. Iron requirements are increased during adolescence, reaching a maximum at the peak of growth and remaining almost as high in girls after menarche, to replace menstrual losses. The low iron status among adolescents from the rural zone determine that this is a high risk group to anemia and FeD and they require prevention, control and suplementation strategies.

Keywords : Micronutrient deficiencies; anemia; adolescent.

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