Late reporting was concentrated among a small number of manufacturers, with 3 manufacturers and 13 devices accounting for 54.8% of all late reports between 2019 and 2022.
A 1-unit increase in infant gut microbiota diversity at 1 month was associated with a 1.86 mm Hg lower systolic BP at 6 years—only in children breastfed for at least 6 months.