Navia MZ, Jacobson DL, Balmert LC, et al. - In the present study, the researchers sought to compare state-specific trends in neonatal circumcision to previously established estimates and evaluate the effect of changes in Medicaid coverage of the procedure. They used the State Inpatient Databases to determine rates of neonatal male circumcision in 4 states (CO, FL, MI, and NY) at 4 time points (2001, 2006, 2011, 2016). Overall, circumcision was undergone by 54.5% of neonates. States where Medicaid defunded neonatal circumcision showed a drop in circumcision rates in subsequent years (47.4% to 37.5% in FL; 61.9% to 52.0% in CO). State-specific data show neonatal circumcision patterns close to previous national estimates. Colorado and Florida reported decreases in neonatal circumcision rates of 20.9% and 16.0%, respectively, after defunding. Black neonates tend to have been disproportionately impacted by changes in Medicaid coverage.