Which psychosocial factors are associated with return to sport following concussion? A systematic review.

"Competing interests JvI reported receiving speaking honoraria and travel expenses for presentations at scientific meetings and is the founder of and an instructor for R2P Concussion Management. RZ reported being a co-applicant on a competitively funded grant administered by the National Football League through the independent scientific advisory board to fund a prospective concussion study with the goal of preventing concussions; he does not personally receive any funding for this work; his institution receives the operating funds to conduct the research; He has received honoraria from Parachute Canada (a Canadian non-profit for injury prevention) for his role on the Concussion Expert Advisory committee; He is also the co-founder, Scientific Director, and a minority shareholder in 360 Concussion Care, which is an interdisciplinary concussion clinic. All the support had no involvement in the study design and writing of the manuscript or the decision to submit it for publication.The other authors declare that they have no competing interests."

"A priori, we registered a scoping review designed to synthesize concepts and themes across all sports and injuries into an operational definition of psychological readiness (Registration number: osf.io/6xq3a). For this systematic review, we included concussion-specific studies that were identified in the larger scoping review search strategy to answer our specific research question. Results are reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to increase methodological clarity and adoption of research findings."