Thank you for publishing content highlighting the importance of evaluating breastfeeding programs and policies. We wish to raise several methodological concerns with the recent analysis 1 Bass J, Gartley T, Kleinman R. Outcomes from the centers for disease control and prevention 2018 breastfeeding report card: Public policy implications. Journal of Pediatrics. 2020;218:16-21.e1. doi:10.1016/j.jpeds.2019.08.059. of CDC’s Breastfeeding Report Card data 2 Centers for Disease Control and Prevention.