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Article History

Received: 29 November 2019

Accepted: 12 August 2020

First Online: 10 September 2020

Ethics approval and consent to participate

: Approval of the ethic committees of all participating sites was available before the first participant was included. All participants provided written informed consent prior to enrolment in the study.

: Not applicable.

: Funds.SJ received funding for educational lectures from the German Social Accident Insurance (DGUV). Outside the scope of this paper, he received institutional funding for investigator-initiated research from Pfizer, Novartis, ALK, and Sanofi.BA received funding for educational lectures, workshops and expert opinions from the German Social Accident Insurance (DGUV). Outside the scope of this paper, she received grants for research paid to the institution, fees for lectures and advisory boards from Novartis, Leo, Sanofi, Biofrontera, Lofarma, Circassia, ALK, Incyte Corporation, Genentech, Shire, and Atopixs Therapeutics Ltd.EP, FM, BT, BR, LB, DGS, SHJ received payments for expert witness for one of the collaborating as well as for other funds. BI, AP, KP, DH, LS, JSM, HL, HE do not declare any COI.Employer.FM and BT declare no conflicts of interest. As staff of the Institute for Prevention and Occupational Medicine (IPA), they are employed at the ‘Berufsgenossenschaft Rohstoffe und chemische Industrie’ (BG RCI), a public body which is a member of the study’s main sponsor, the German Social Accident Insurance. IPA is an independent research institute of the Ruhr-University Bochum. The authors are independent of the German Social Accident Insurance regarding study design, access to the collected data, responsibility for data analysis and interpretation, and the right to publish. The views expressed in this paper are those of the authors and not necessarily those of the sponsor.The other authors declare no potential conflicts of interest.