To the Editor: We read with great interest the secondary analysis by Perkin et al1 of sleep duration among infants randomized to receive early introduction to solid foods compared with infants randomized to standard introduction.1 Infants in the early introduction group slept a mean of 7 minutes longer per night across the 3-year study period compared with infants in the standard introduction group. The group difference in sleep duration peaked at approximately 17 minutes at 6 months of age. As researchers studying sleep during pregnancy and early parenthood, we want to highlight additional areas of inquiry that we believe are critical for future research and clinical practice.
Felder JN, Lee K. Association of Early Introduction of Solids With Infant Sleep. JAMA Pediatr. Published online December 03, 2018. doi:10.1001/jamapediatrics.2018.4354
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