LAUSR

Key Points Question Is maternal caffeine consumption associated with child growth, and are such associations present in low-consumption groups? Findings In this cohort study, at ages 4 to 8 years, children of women with low measured caffeine and paraxanthine during pregnancy were shorter than the children of women who consumed no caffeine during pregnancy, with increasing gaps in height in a historical cohort through age 8 years. There were no clear patterns of weight or body mass index changes. Meaning Although the clinical implications are unclear for relatively small observed differences, these findings suggest that small amounts of daily maternal caffeine consumption are associated with shorter stature in their offspring that persist into childhood.