Effect of massive dose vitamin A on morbidity and mortality in Indian children

Area of Science:

• Public Health
• Nutritional Science
• Pediatrics

Background:

• Childhood morbidity and mortality remain significant global health challenges.
• Vitamin A deficiency is a prevalent issue in many developing regions, linked to increased infection risk and mortality.
• Understanding the impact of vitamin A supplementation on child health outcomes is crucial for public health interventions.

Purpose of the Study:

• To evaluate the effect of high-dose vitamin A supplementation on morbidity and mortality in preschool children.
• To assess the relationship between xerophthalmia status and respiratory infection risk.
• To determine if vitamin A supplementation alone can reduce child mortality.

Main Methods:

• A prospective, double-blind, placebo-controlled study was conducted in Hyderabad, India.
• 7691 children received 200,000 IU vitamin A every six months; 8084 children received a placebo.
• Morbidity and mortality data were collected tri-monthly over the study period.

Main Results:

• Vitamin A supplementation showed no significant effect on the overall morbidity status of children.
• Children with mild xerophthalmia exhibited a higher risk of respiratory infection compared to those with normal eyes.
• Mortality rates were comparable between the vitamin A and placebo groups, with the highest rates in children receiving neither.

Conclusions:

• Vitamin A supplementation alone may not be sufficient to reduce preschool child mortality.
• Addressing other contributing factors alongside vitamin A is likely necessary for significant mortality reduction.
• The study highlights the importance of considering baseline nutritional status and co-existing conditions in evaluating supplementation efficacy.