Participant Demographics
Among 81 participants originally in the control group, 2 participants were excluded from analysis because they were support person participants who were not parents.Race and ethnicity were self-reported by participants selecting among National Institutes of Health–specified racial and ethnic categories. Race options included American Indian or Alaska Native, Asian, Black or African American, Native Hawaiian or Other Pacific Islander, White, and other. Ethnicity options included Hispanic or Latino and not Hispanic or Latino. Race and ethnicity were reported because of past work demonstrating differences in neonatal intensive care at periviability by race and ethnicity.Race percentages may not add to 100% given that participants could report being more than 1 race.Other races included American Indian, Native Hawaiian or Other Pacific Islander, and self-selected other. Because each of these categories included 2 participants or fewer, these categories were summed and combined.