The research aims of this study are:~To further explore differences in a modified selection of patient-reported outcome measures (PROMs) and (as a new addition in APPROACH-IS II) explore differences in patient-reported experience measures (PREMs), by enrolling adults with congenital heart diseases in low, middle, and high income countries and including new potential explanatory variables (Part 1).~To explore the profile and healthcare needs of a subgroup of older adults with congenital heart disease, with a particular focus on investigating the frailty phenotype (Part 2).
This is an international, cross-sectional and descriptive study that aims to investigate differences in patient-reported outcome measures (PROMs) and patient-reported experience measures (PREMs) and that aims to explore the profile and healthcare needs of adults with congenital heart diseases.