Funding for this research was provided by:
Universitätsklinikum Hamburg-Eppendorf (UKE)
Received: 25 February 2021
Accepted: 30 September 2021
First Online: 13 October 2021
: The study complies with the Declaration of Helsinki. The RECODE-HF study was approved by all local ethics committees (Medical Association of Hamburg, Approval No. PV3889; Ethics Committee of the Medical Faculty of the University of Würzburg, Approval No. 125/12, Ethics Committee at the University of Göttingen Medical Center, Approval No. 19/8/11). All study participants gave written informed consent before participating in the study.
: Not applicable.
: CHL receives royalties for the German HADS from Hogrefe Huber publishers. EB is employed by Helsana Health Insurances, Zürich, Switzerland. SB received fees for lecturers/statistical consulting of Asklepios Medical School GmbH. All other authors declare that they have no financial conflicts of interest. Non-financial conflicts of interest: ME and EB are members of the German College of General Practitioners and Family Physicians. MS is current President of the German College of General Practitioners and Family Physicians. SS is member of the German Cardiac Society and of the writing group of the National Guideline Heart Failure Care. CHL is current President of the German College of Psychosomatic Medicine, chairs its working group on Psychosomatics in Cardiology, is a member of the German Society for Cardiology and of other scientific societies for psychosomatic/behavioural medicine. All other authors declare that they have no nonfinancial conflicts of interest.