Aims
1. To further explore differences in a modified selection of patient-reported outcome measures (PROMs) and explore differences in patient-reported experience measures (PREMs), by enrolling adults with CHD in low, middle, and high income countries and including new potential explanatory variables (“Study Part 1”).
2. To explore the profile and healthcare needs of a subgroup of older adults with CHD, with a particular focus on investigating the frailty phenotype (“Study Part 2”).
2. To explore the profile and healthcare needs of a subgroup of older adults with CHD, with a particular focus on investigating the frailty phenotype (“Study Part 2”).