Delayed iron does not alter cognition or behavior among children with severe malaria and iron deficiency

Area of Science:

• Pediatric infectious diseases
• Nutritional deficiencies
• Neuroscience

Background:

• Malaria and iron deficiency (ID) in childhood are linked to cognitive and behavioral impairments.
• Current treatment involves concurrent antimalarial and iron therapy.
• Delayed iron therapy might improve absorption but could risk cognitive function.

Purpose of the Study:

• To investigate the impact of immediate versus delayed iron therapy on cognitive and neurobehavioral outcomes in Ugandan children with malaria and ID.
• To determine if delaying iron supplementation for 28 days affects cognitive development post-malaria.

Main Methods:

• Enrolled Ugandan children aged 18 months to 5 years with cerebral malaria (CM), severe malarial anemia (SMA), or community controls (CC).
• Assessed children for ID and randomized those with ID to immediate or 28-day delayed iron therapy.
• Evaluated cognitive and neurobehavioral outcomes at baseline, 6, and 12 months.

Main Results:

• All children with CM or SMA and some CC children had ID.
• No significant differences in cognitive ability, attention, memory, or behavior were observed at 12 months between immediate and delayed iron groups.
• P-values for mean differences ranged from P ≥ 0.06, indicating no statistically significant variations.

Conclusions:

• Immediate versus delayed iron therapy yielded similar cognitive and neurobehavioral outcomes in children with CM or SMA and ID at 12-month follow-up.
• Delaying iron treatment for 28 days post-malaria episode did not result in worse cognitive or behavioral outcomes.
• The study contributes data to optimize iron therapy timing for children with severe malaria and ID.