Funding for this research was provided by:
National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01 AR065977, K23 AR062127)
Health Services Research and Development (CIN 13-413)
Text and Data Mining valid from 2019-06-29
Received: 25 July 2018
Accepted: 18 June 2019
First Online: 29 June 2019
Ethics approval and consent to participate
: Institutional review boards at all OAI clinical sites and 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, and University of Maryland Baltimore – Institutional Review Board, and Committee on Human Research at University of California, San Francisco; Approval Number: 10–00532) approved the study. The OAI has been approved and meets all criteria for ethical standards regarding human and animal studies defined in the 1964 Declaration of Helsinki and all amendments made after. All participants provided written informed consent prior to participation.
: 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.