Consider iron status when evaluating infants at risk of delayed motor development.

Reticulocyte hemoglobin of <28 pg and ferritin <51 μg/L were associated with suboptimal gross motor scores (< 10th percentile rank) in infants 3–7 months as assessed by the Alberta Infant Motor Scale (AIMS).

Ljungblad, U.W.; Tangeraas, T.; Paulsen, H.; Lindberg, M. Lower iron stores were associated with suboptimal gross motor scores in infants at 3–7 months. Acta Paediatrica 2022, 111, 1941-1949, doi:https://doi.org/10.1111/apa.16469.