Silvia De‐Ponce’s scientific contributions

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Publications (1)


Biomarkers and factors associated with anaemia in infants and toddlers ages 6 to 24 months from Retalhuleu, Guatemala
Biomarkers and factors associated with anaemia in preschoolers ages 36 to 60 months from Retalhuleu, Guatemala
Prevalence of micronutrient deficiencies and inflammation status in infants and toddlers ages 6 to 24 months and preschoolers ages
Zinc deficiency associated with anaemia among young children in rural Guatemala
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October 2019

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210 Reads

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27 Citations

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Silvia De‐Ponce

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One in four children younger than age five in Guatemala experiences anaemia (haemoglobin <11.0 g/dl). This study characterized the factors and micronutrient deficiencies associated with anaemia in a baseline cross-sectional sample of 182 Guatemalan infants/toddlers and 207 preschoolers, using generalized linear mixed models. Associations between anaemia and maternal, child and household variables, and biomarkers (soluble transferrin receptor, ferritin, zinc, folate, vitamin B12, C-reactive protein, and α1-acid glycoprotein) were explored. Rates of anaemia were 56% among infants/toddlers and 12.1% among preschoolers. In children with anaemia, rates of iron deficiency (low ferritin based on inflammation status, and/or high soluble transferrin receptor, ≥1.97 mg/L) and zinc deficiency (serum zinc <65 μg/dl) were 81.1% and 53.7%, respectively. Folate deficiency (either plasma folate <3 ng/ml or erythrocyte folate <100 ng/ml) was 3.3%. Vitamin B12 deficiency (plasma vitamin B12 <148 pmol/L) was 7.5%. For infants and toddlers (<24 months), the odds ratio of anaemia was lower when higher number of adults lived in the household (OR = 0.69; 95% CI [0.53, 0.90]), and higher when children were zinc deficient (OR = 3.40; 95% CI [1.54, 7.47]). For preschoolers (36-60 months), the odds ratio of anaemia was lower for every additional month of age (OR = 0.90; 95% CI [0.81, 1.00]). Findings suggest that micronutrient deficiencies coexist in Guatemalan rural children, and zinc deficiency is associated with anaemia in children <24 months, highlighting the need of continued multidisciplinary interventions with multiple micronutrients. Further research examining how household composition, feeding practices, and accessibility to micronutrient supplements and to animal source foods is needed to incorporate strategies to improve the nutritional status of Guatemalan children.

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Citations (1)


... This relationship has not been extensively studied in clinical settings, particularly in children under five years of age. The high prevalence of anemia among participants, often co-occurring with ZnD, further suggests inadequate zinc intake, as reported in earlier studies from developing countries [19,20]. ...

Reference:

High Silent Prevalence of Zinc Deficiency and Impaired Immunity in Children Under Five Years of Age Admitted to a Regional Referral Hospital in Uganda
Zinc deficiency associated with anaemia among young children in rural Guatemala