Undernutrition, vitamin A deficiency and ARI morbidity in underfives

Area of Science:

• Pediatrics
• Nutritional Science
• Infectious Disease Epidemiology

Background:

• Acute Respiratory Infection (ARI) is a major cause of childhood morbidity globally.
• Undernutrition and vitamin A deficiency are prevalent in under-five populations and suspected risk factors for ARI.

Purpose of the Study:

• To investigate the impact of undernutrition and vitamin A deficiency on the incidence of acute respiratory infections in children under five.
• To quantify the association between nutritional status and ARI episodes.

Main Methods:

• A longitudinal study design was employed, following 200 randomly selected children under five.
• Data collection occurred fortnightly over a one-year period (January to December 1991).
• Assessment included monitoring ARI incidence and evaluating nutritional status, specifically signs of undernutrition and vitamin A deficiency.

Main Results:

• Children experienced an average of 5.9 episodes of ARI per year.
• Undernourished children had a significantly higher risk of ARI attacks.
• Children with signs of vitamin A deficiency also faced a significantly greater risk of ARI.

Conclusions:

• Undernutrition and vitamin A deficiency are significant risk factors for increased acute respiratory infection incidence in young children.
• Addressing nutritional deficiencies, including vitamin A, may be crucial for reducing ARI burden in vulnerable populations.
• Public health interventions should consider nutritional status as a key determinant of ARI risk in under-five children.