Funding for this research was provided by:
National Institutes of Health (5TL1TR14543)
National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01-AR065977, N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, N01-AR-2-2262)
Received: 22 January 2020
Accepted: 8 May 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: The OAI study was approved by institutional review boards at each OAI clinical site and the coordinating center: Memorial Hospital of Rhode Island Institutional Review Board, The Ohio State University’s Biomedical Sciences Institutional Review Board, University of Pittsburgh Institutional Review Board, University of Maryland Baltimore – Institutional Review Board, and Committee on Human Research at University of California, San Francisco. All participants provided written informed consent. The Tufts Medical Center Institutional Review Board deemed that the work done at our institution was not human research because we analyzed publicly available data.
: Not applicable.
: JBD, MFB, and MSH are members of the Editorial Board of BMC Musculoskeletal Disorders. The other authors declare that they have no competing interests.