About the Authors

Peter Koch

p.koch@uke.de

Affiliation Centre of Excellence for Epidemiology and Health Services Research for Healthcare Professionals (CVcare), University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany

Johanna Stranzinger

Affiliation Health Protection Division (FBG), Institution for Statutory Accident Insurance and Prevention in the Health and Welfare Services (BGW), Pappelallee 33, 22089 Hamburg, Germany

Albert Nienhaus

Affiliations Centre of Excellence for Epidemiology and Health Services Research for Healthcare Professionals (CVcare), University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany, Health Protection Division (FBG), Institution for Statutory Accident Insurance and Prevention in the Health and Welfare Services (BGW), Pappelallee 33, 22089 Hamburg, Germany

Agnessa Kozak

Affiliation Centre of Excellence for Epidemiology and Health Services Research for Healthcare Professionals (CVcare), University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PK JS. Performed the experiments: PK. Analyzed the data: PK. Contributed reagents/materials/analysis tools: PK AN. Wrote the paper: PK. Was critically reading the manuscript: JS AN AK. Read the draft critically and gave substantial comments for the improvement of the first draft: AN. Revised the manuscript critically for important intellectual content and gave final approval for the version to be published: AK.