Development and External Validation of Individualized Prediction Models for Pain Intensity Outcomes in Patients With Neck Pain, Low Back Pain, or Both in Primary Care Settings.

"Disclosures and Presentations The authors completed the ICMJE Form for Disclosure of Potential Conflicts of Interest and reported no conflicts of interest. The views expressed in this study are those of the authors and not necessarily those of the European Union, the National Health Service, the National Institute for Health and Care Research, the funding bodies, or the Department of Health and Social Care. This study reflects only the views of the authors, and the European Commission is not liable for any use that may be made of its contents. The information in this paper is provided “as is,” without warranty of any kind, and we accept no liability for loss or damage suffered by any person using this information. Portions of this study were presented at the 41st International Society for Clinical Biostatistics, August 23–27, 2020, Krakow, Poland, and the 18th International Association for the Study of Pain World Congress, August 4–8, 2020, Amsterdam, the Netherlands."

"Funding This study presents work conducted as part of a project funded by the European Horizon 2020 Research and Innovation Program (Grant Agreement No. 777090). This study uses data collected as part of independent research funded by the National Institute for Health Research under its Programme Grants for Applied Research scheme (STarT MSK program RP-PG-1211-20010) as well as by Centre of Excellence funding from Versus Arthritis (Grant No. 20202). L. Archer and K. Snell were supported by funding from the Evidence Synthesis Working Group, which was funded by the National Institute for Health and Care Research School for Primary Care Research (Project No. 390) and by funding from the National Institute for Health and Care Research Birmingham Biomedical Research Centre at the University Hospitals Birmingham NHS Foundation Trust and the University of Birmingham. K. Snell was funded by the National Institute for Health and Care Research School for Primary Care Research (NIHR SPCR Launching Fellowship). N. Foster was a National Institute for Health and Care Research senior investigator and supported through a National Institute for Health and Care Research Research Professorship (NIHR-RP-011-015)."