Data management {19}
The data entry is completed at the two sites by the research nurses and research physiotherapists using the electronic research database (RedCap). The database has incorporated range checks for numeric data, and the data will be checked by the principal investigator during the entire study period. The electronic surveys are directly sent to each patient’s e-box. All Danish citizens have an electronic e-box for communication with the state, and the e-box is linked to their civil registration number. The principal investigator manages access to the database. The accelerometers are sent in pre-paid envelopes from the participants to the principal investigator, where the data is loaded into a secured storage space hosted by OPEN. The database and storage use logging and follow the EU GDPR rules.