Stratified randomization and recruitment
Stratified randomization was applied based on the care receiver’s care level and 24h-caregiver’s professional experience (see scoring scheme in Supplementary Table SParticipants were recruited by four project partner organizations, namely All 24h-caregivers provided written informed consent before participation. Ethical approval was obtained from the ethics committee of the Evangelical Hospital Vienna (EC Number: 012019). The trial was registered at ClinicalTrials.gov under the identifier NCT04581538. Households were enrolled between October 2020 and March 2021.