Micronutrient Supplementation and Fortification Interventions on Health and Development Outcomes among Children Under-Five in Low- and Middle-Income Countries: A Systematic Review and Meta-Analysis.

Subgroup analyses by age at baseline showed a trend towards a greater reduction in the risk of anemia among younger (1–5-month and 6–11-month age groups), as compared to older (24–59-month), children, though the test for subgroup differences was not significant ( p for subgroup differences = 0.22).

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