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Article History

Received: 10 June 2018

Accepted: 30 January 2019

First Online: 18 February 2019

Ethics approval and consent to participate

: The data collection has obtained authorisation from the Danish Data Protection Agency (DPA) as part of the University of Southern Denmark’s institutional authorisation (DPA no. 2015–57-0008 SDU no. 17/30591). The Regional Committees on Health Research Ethics for Southern Denmark decided that the study did not need ethical approval (file number S-20172000-93). When registered by the clinician, the patient receives an email with link to a patient reported survey. Written information about the study, data protection and participants’ rights are in the survey with a request to confirm consent for using data for research purposes (Additional file InternalRef removed). The treatments offered to patients are not influenced by study participation. Clinicians agree to the requirements for GLA:D Back certification and consent that data are used for investigating reach and adoption when signing up for the course. Consent that data are used for research purposes in general is provided at the four-months follow-up.

: The manuscript does not include any individual person’s data.

: AK’s position at the University of Southern Denmark is financially supported by the Foundation for Chiropractic Research and Postgraduate Education, and IR’s position is supported by income from the GLA:D Back clinician courses. GLA:D® is a non-profit initiative hosted at the University of Southern Denmark and the GLA:D® trademark is property of the University of Southern Denmark. The GLA:D initiative is developed in close collaboration with the SDU Research & Innovation Organisation, including legal reviews. The researchers do not have any personal financial benefits from working with the project. Since there is a substantial overlap between the developers of the intervention and the investigators of this study, we will ask members of the advisory board who are neither involved in development of the intervention nor in the study itself to take on the role of monitoring data and safety. The study team will continuously report interim results to the advisory board and discuss the need for major changes in the conduct of the study. The members of the advisory board will be given access to the data of the study on request. AK, PK, and JH are editorial board members for BMC Musculoskeletal Disorders.

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