2.8. Data collection and management
The personally identifiable data are entered and managed in a password-protected MS Access database and serve as a re-identification list. The database resides on a separate project drive, with limited accessibility. Data from the survey instruments are entered in pseudonymized form into a SoSci-Survey online database programmed by the Institute of Social Medicine, Epidemiology, and Health Economics at Charité Universitätsmedizin Berlin, via an HTTPS connection (SSL encryption) with an existing Internet connection to the server, which is located within the Charité IT infrastructure. The data received from the server can be exported for further processing, and this can only be performed by the data manager via a password-protected login. The exported data are stored on a specially protected drive within the server of the Institute of Social Medicine, Epidemiology, and Health Economics.The questionnaires are entered into the online database in a pseudonymous form by 1 or more persons known by name and authorized by the principal investigator. The entry of the questionnaires is also password protected. After checking for correctness and plausibility, the data are transferred to SPSS data format.