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Sources of variation in energy and nutrient intakes among children from six to thirty months old in a

Rosana Salles-Costa1, Gabriela Dos Santos Barroso, Melissa Arêas de Mello

  • 1Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil. rosana@nutricao.ufrj.br

Cadernos De Saude Publica
|July 27, 2010
PubMed

Insights

Dietary intake in children aged 6-30 months varies significantly with age and food insecurity. Understanding these variations is crucial for assessing nutrient intake and planning interventions.

Area of Science:

  • Nutritional Epidemiology
  • Pediatric Nutrition
  • Public Health

Background:

  • Accurate assessment of children's dietary intake is essential for understanding nutritional status.
  • Factors like age and socioeconomic status (indicated by food insecurity) can influence dietary patterns.
  • Variability in dietary data collection methods impacts nutrient intake estimations.

Purpose of the Study:

  • To identify and analyze sources of variation in the dietary intakes of young children (6-30 months).
  • To assess the impact of age and food insecurity on nutrient and food group consumption.
  • To determine the optimal number of 24-hour dietary recalls needed for reliable nutrient assessment.

Main Methods:

  • Utilized data from two 24-hour dietary recalls from 383 children in Rio de Janeiro, Brazil.
  • Analyzed dietary intake based on food groups, calculating coefficients of variation ratios.
  • Estimated crude and de-attenuated means for energy, macronutrients, and micronutrients.

Main Results:

  • Age and food insecurity significantly affected the average number of food group servings consumed.
  • Most nutrient variation coefficients were below 1, with exceptions for vitamin C and younger children.
  • The required number of 24-hour recalls varied from 1 to 6 days, being highest for vitamin C.

Conclusions:

  • Age and food insecurity are key determinants of dietary intake variation in young children.
  • Specific nutrients, like vitamin C, and younger age groups require more extensive dietary assessment.
  • Findings inform the design of more accurate nutritional surveys in pediatric populations.

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