[Factors associated with concentrations of hemoglobin in preschoolers]

Area of Science:

• Pediatrics
• Public Health
• Nutritional Science

Background:

• Hemoglobin levels are critical indicators of child health and development.
• Micronutrient deficiencies, such as zinc and retinol, can impact hemoglobin concentrations.
• Socio-environmental and maternal factors may influence nutritional status in preschool children.

Purpose of the Study:

• To investigate the association between hemoglobin concentration and various child, maternal, and socio-environmental factors.
• To explore the relationship between hemoglobin levels and serum concentrations of zinc and retinol.
• To identify risk factors contributing to low hemoglobin in preschool children.

Main Methods:

• Cross-sectional study involving 335 preschool children from day care centers.
• Data collection included socio-environmental, maternal, biological-nutritional, and health condition characteristics.
• Analysis of hemoglobin, serum zinc, and retinol concentrations.

Main Results:

• Lower hemoglobin concentrations were associated with inadequate housing (non-brick construction), lack of sanitation, and absence of public services (garbage collection, water treatment).
• Maternal educational difficulties, younger child age (9-24 months), low weight-for-age, recent health problems, and lower serum zinc/retinol were also linked to reduced hemoglobin.
• Multicausal factors, including socio-environmental and child-maternal characteristics, contribute to low hemoglobin levels.

Conclusions:

• Socio-environmental conditions and maternal characteristics significantly impact hemoglobin levels in preschool children.
• Interventions should prioritize young children of mothers with lower education and those with poor weight, health, and micronutrient status.
• Addressing these factors is crucial for improving child growth and preventing anemia.