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Liver shear wave speed is abnormally increased in neonates and infants with biliary atresia.

Liver US shear wave speed measurements increase with increasing parenchymal fibrosis in children.

Given the increased risk for nonadherence and poor health outcomes in late adolescence, there is a need for better methods to evaluate and improve the transition process as adolescent patients are prepared to be independent adults. This study assessed the psychometrics and concurrent validity of a newly developed measure of the allocation of responsibility for health management in pediatric liver transplant patients. 48 patients and 37 parents completed a 13-item measure of allocation of responsibility. We performed an exploratory principal components analysis on survey results and used component scores to assess the relationship between allocation of responsibility and age, age at transplant, adherence, and health outcomes. Two primary components were identified: Communication with the Health Care System, and Self-Management Tasks. Parent perception of adolescent responsibility for tasks related to communicating with the healthcare system was correlated, in younger patients, with increased nonadherence while responsibility for tasks related to self-management was correlated, in older patients, with decreased nonadherence. These results support allocation of responsibility as a two-domain construct, and they provide targets for monitoring and intervention as adolescent patients advance towards transfer.