ArticleJournal of athletic training2017
Examining Play Counts and Measurements of Injury Incidence in Youth Football.
Article in Journal of athletic training, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- The Incidence of Sports-Related Concussion in Children and Adolescents: A Systematic Review and Meta-Analysis.Sports medicine - open · 2025Pooled it
- Head Games: A Systematic Review and Meta-analysis Examining Concussion and Head Impact Incidence Rates, Modifiable Risk Factors, and Prevention Strategies in Youth Tackle Football.Sports medicine (Auckland, N.Z.) · 2022Pooled it
- Exertional heat illness risk factors and physiological responses of youth football players.Journal of sport and health science · 2021Article
- The Effect of Game Importance on Concussion Incidence in the National Football League: An Observational Study.Cureus · 2019Article
- Concussion Epidemiology in Youth Sports: Sports Study of a Statewide High School Sports Program.Sports healthArticle
- Head Impact Exposure Across Levels of Play in American Football: A Systematic Review of Accelerometer Data.Neurotrauma reportsReview
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
contextWhereas researchers have provided estimates for the number of head impacts sustained within a youth football season, less is known about the number of plays across which such impact exposure occurs.
objectiveTo estimate the number of plays in which youth football players participated during the 2013 season and to estimate injury incidence through play-based injury rates.
designDescriptive epidemiology study.
settingYouth football. PATIENTS OR OTHER
participantsYouth football players (N = 2098; age range, 5-15 years) from 105 teams in 12 recreational leagues across 6 states. MAIN OUTCOME MEASURE(S): We calculated the average number of athlete-plays per season and per game using independent-samples t tests to compare age groups (5-10 years old versus 11-15 years old) and squad sizes (<20 versus ≥20 players); game injury rates per 1000 athlete-exposures (AEs) and per 10 000 athlete-plays; and injury rate ratios (IRRs) with 95% confidence intervals (CIs) to compare age groups.
resultsOn average, youth football players participated in 333.9 ± 178.5 plays per season and 43.9 ± 24.0 plays per game. Age groups (5- to 10-year-olds versus 11- to 15-year-olds) did not differ in the average number of plays per season (335.8 versus 332.3, respectively; t
conclusionsA larger squad size was associated with a lower average number of plays per season and per game. Increasing youth football squad sizes may help reduce head-impact exposure for individual players. The AE-based injury rates yielded effect estimates similar to those of play-based injury rates.
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