Jensen, Rikke K.
Bech, Mathias
Skovsgaard, Christian V.
Ryg, Jesper
Hartvigsen, Jan
Johansson, Melker S.
Funding for this research was provided by:
University of Southern Denmark
Article History
Received: 24 October 2025
Accepted: 30 March 2026
First Online: 14 April 2026
Declarations
:
: RKJ and JH have part-time employment at the Chiropractic Knowledge Hub that is funded as part of the contract between the Danish Regions and the Danish Chiropractor’s Association. RKJ, JH, and MSJ have received funding from the Danish Chiropractor’s Research Fund also co-financed between the Danish Regions and the Danish Chiropractor’s Association. MB, JR and CVS have no conflicts of interest.
: According to Danish legislation, informed consent and approval from the Ethics Committees in Denmark are not required when conducting registry-based research. Access to the data was provided by Research Service, part of the Danish Health Data Authority. The project was notified to the Danish Data Protection Agency (file number 18/43017; register 12.068). The study was conducted according to the Declaration of Helsinki and Danish legislation.