Hwang SS, Tong S, Smith RA, et al. - Through analyzing Pregnancy Risk Assessment Monitoring System data (a population-based perinatal surveillance system) from 16 US states, researchers sought to evaluate trends in racial disparity in supine sleep positioning (SSP) across racial/ethnic groups of infants born early preterm (Early preterm; < 34 weeks) and late preterm (Late preterm; 34-36 weeks) from 2000 to 2015. Between 2000 and 2015, Non-Hispanic Black infants had lower chances of SSP than Non-Hispanic White infants for early preterm and late preterm groups. From 2000 to 2015, SSP increased for all racial/ethnic preterm groups, however, the racial/ethnic discrepancy in SSP between early and late preterm groups persists.