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Introduction: The 2017-2018 National Survey of Children’s Health estimates that 30 million (42%) US children have experienced at least one adverse childhood experience (ACE), including abuse, neglect, and household dysfunction. ACEs negatively impact long-term health, and there has been no study of ACEs in cystic fibrosis (CF). We assessed willingness to disclose ACEs experienced by children with CF by surveying their parents and adults with CF. Methods: We anonymously surveyed parents of children with CF and adults with CF at the Northwestern University/ Lurie Children’s CF Center to determine their willingness to disclose ACEs. Results: The survey was completed by 46/157 (29%) parents and 36/105 (34%) adults with CF. Few parents (22%) and adults (17%) were willing to discuss most or all specific ACEs, more were willing to disclose the number of ACEs experienced in a category (57% parents, 47% adults), and the majority were willing to participate in anonymous research about ACEs (76% parents, 67% adults). Most parents (63%) and adults (50%) would prefer to have ACEs screened separately from their CF appointment, and most parents (63%) and adults (56%) wanted to learn more about ACEs from a member of their care team. Conclusions: Participants preferred to disclose the number of categorical ACEs rather than specific ACEs and most were open to participating in anonymous ACEs research. More research is needed before widespread adoption of ACE screening in CF.

Background: Diagnostic sweat testing is required for infants with positive newborn screening (NBS) tests for cystic fibrosis (CF). Infants have “quantity not sufficient” (QNS) sweat volumes more often than older children. A comprehensive study of QNS sweat volumes in infants has not previously been reported. Methods: We surveyed US CF Centers to obtain QNS rates in all infants who had sweat testing at < 14 days and < 3 months of age. We then calculated QNS rates reported to the Cystic Fibrosis Foundation Patient Registry (CFFPR) 2010-2018 in 10-day increments from 1 to 60 days of life. We compared QNS sweat tests rates in preterm (< 37 weeks gestational age) versus term infants. We assessed age at sweat test and proportion of infants who did not have a sweat test reported by 60 days of age. Results: Thirty-nine of 144 (27%) of CF Centers reported a mean QNS rate of 10.5 % (range, 0-100) in infants < 14 days old. CFFPR data showed highest QNS rates in the youngest infants and in those born < 37 weeks gestation. The median age at sweat testing decreased over time, but > 22% of infants did not have a sweat test reported by 60 days. Conclusion: Higher QNS rates are seen in the youngest infants with CF, but > 80% of infants < 2 weeks of age have adequate sweat volumes. Sweat testing should not be delayed in infants with a positive CF NBS test.