Participants
In this cross-sectional study, we included N = 121 participants (Fig. 5; Table 1 for demographic description) from the study Remote Assessment of Disease and Relapse – Alzheimer’s Disease (RADAR-AD). Inclusion criteria were community-dwelling adults older than 50 years of age, being able to communicate in the local language, and having a smartphone and a study partner available. Exclusion criteria were having a disease or disorder other than AD that could influence cognition and functioning in daily life. The participants were assigned to study groups, based on Mini-Mental State Examination (MMSE)18, Clinical Dementia Rating (CDR)19, and Aβ status (positive/negative), obtained via either Positron Emission Tomography (PET) or cerebrospinal fluid (CSF) analysis, defined by each site’s local procedures. The three study groups were defined as follows: healthy…
