Discussion
We used a novel pooled analysis approach to identify the Hb thresholds that best discriminated several functional outcomes among 11 studies of 27 626 children aged 6–30 months in 8 LMICs. Of the three types of outcomes examined, physical activity and child development, but not sleep indicators, showed meaningful differences between subgroups above versus below best Hb thresholds. For co...
This study employs a robust pooled analysis to challenge and refine existing anemia thresholds for young children, offering a nuanced perspective on how hemoglobin levels correlate with functional outcomes. The methodology is sound, leveraging a large dataset (27,626 children) across diverse LMIC contexts, though the reliance on varied Hb measurement techniques (venous vs. capillary) and developmental assessment tools introduces some noise. The authors appropriately caution that their findings a...