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[Lack of iron in adolescents aged 10 to 14].

Atencion Primaria 2002 Februrary 16
AIMS: To study the prevalence of depletion of organic iron stores, ferropenia and ferropenic anemia in the adolescent population in a health care district in northern Spain. Design. Cross-sectional, with systematic sampling.

SETTING: Primary health care service in a rural setting.

PARTICIPANTS: Sample of 204 healthy adolescents aged 10.0 to 14.0 years; 93 males, 111 females.

MAIN MEASURES: Familial and personal antecedents, physical activity, date of menarche, weight, height and body mass index, hemoglobin (Hb), mean corpuscular volume (MCV), transferrin saturation index (TSI) and serum ferritin (SF) were recorded for 1 out of every 4 adolescents who visited the health center for a regular check-up. Positive C-reactive protein or erythrocyte sedimentation rate were criteria for exclusion. Iron stores were considered to be depleted when SF was < 12 ng/dL, ferropenia was said to exist when, in addition, TSI was < 14% or MCV was < 75 fL, and ferropenic anemia was said to exist when, in addition, Hb was < 12 g/dL.

RESULTS: Some stage of iron deficiency was found in 8.6% of the males and 12.6% of the females. Iron stores were depleted in 2.2% and 6.3%, respectively; ferropenia was found in 3.2% and 3.6%, respectively; and anemia was found in 3.2% and 2.7%, respectively. There were no significant differences between the sexes.

CONCLUSIONS: In adolescents aged 10 to 14 years in our health care setting, iron deficiency was relatively common. Health care programs for children and adolescents should aim specifically to prevent, detect and control iron deficiency.

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