Received: 28 January 2020
Accepted: 17 June 2020
First Online: 16 July 2020
Ethics approval and consent to participate
: The authors were granted approval from the European Foundation for the Improvement of Living and Working Conditions to obtain and use the collected data for analysis. All data were anonymized prior to the authors receiving the data.
: Not applicable.
: The authors declare that they have no competing interests.