The DOI matches its Crossref record.
Concussions Among University Football and Soccer Players
Abstract
OBJECTIVE: A study to examine the incidence and characteristics of concussions among Canadian university athletes during 1 full year of football and soccer participation. DESIGN: Retrospective survey. PARTICIPANTS: Three hundred eighty Canadian university football and 240 Canadian university soccer players reporting to 1999 fall training camp. Of these, 328 football and 201 soccer players returned a completed questionnaire. MAIN OUTCOME MEASURES: Based on self-reported symptoms, calculations were made to determine the number of concussions experienced during the previous full year of football or soccer participation, the duration of symptoms, the time for return to play, and any associated risk factors for concussions. RESULTS: Of all the athletes who returned completed questionnaires, 70.4% of the football players and 62.7% of the soccer players had experienced symptoms of a concussion during the previous year. Only 23.4% of the concussed football players and 19.8% of the concussed soccer players realized they had suffered a concussion. More than one concussion was experienced by 84.6% of the concussed football players and 81.7% of the concussed soccer players. Examining symptom duration, 27.6% of all concussed football players and 18.8% of all concussed soccer players experienced symptoms for at least 1 day or longer. Tight end and defensive lineman were the positions most commonly affected in football, while goalies were the players most commonly affected in soccer. Variables that increased the odds of suffering a concussion during the previous year for football players included a history of a traumatic loss of consciousness or a recognized concussion in the past. Variables that increased the odds of suffering a concussion during the previous year for soccer players included a past history of a recognized concussion while playing soccer and being female. CONCLUSIONS: University football and soccer players seem to be experiencing a significant amount of concussions while participating in their respective sports. Variables that seem to increase the odds of suffering a concussion during the previous year for football and soccer players include a history of a recognized concussion. Despite being relatively common, symptoms of concussion may not be recognized by many players.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
McCrory, P., Meeuwisse, W., Dvorak, J., Aubry, M., Bailes, J., Broglio, S., Cantu, R. C., Cassidy, D., Echemendia, R. J., Castellani, R. J., et al. (2017) · British Journal of Sports Medicine · doi:10.1136/bjsports-2017-097699 · Cited by 3,568
Self-citationUnreported Concussion in High School Football Players: Implications for Prevention
McCrea, M., Hammeke, T., Olsen, G., Leo, P., & Guskiewicz, K. (2004) · Clinical Journal of Sport Medicine · doi:10.1097/00042752-200401000-00003 · Cited by 1,220
The epidemiology of sport-related concussion
Daneshvar, D. H., Nowinski, C. J., McKee, A. C., & Cantu, R. C. (2011) · Clinics in Sports Medicine · doi:10.1016/j.csm.2010.08.006 · Cited by 681
Guskiewicz, K. M., Mihalik, J. P., Shankar, V., Marshall, S. W., Crowell, D. H., Oliaro, S. M., Ciocca, M. F., & Hooker, D. N. (2007) · Neurosurgery · doi:10.1227/01.neu.0000306103.68635.1a · Cited by 423
The Role of Concussion History and Gender in Recovery from Soccer-Related Concussion
Chiang Colvin, A., Mullen, J., Lovell, M. R., Vereeke West, R., Collins, M. W., & Groh, M. (2009) · The American Journal of Sports Medicine · doi:10.1177/0363546509332497 · Cited by 333
Metadata
- Authors
- Delaney, J. S., Lacroix, V. J., Leclerc, S., & Johnston, K. M.
- Venue
- Clinical Journal of Sport Medicine
- Published
- 2002-11
- Volume
- 12
- Issue
- 6
- Pages
- 331-338
- ISSN
- 1050-642X (ISSN-L)
- OpenAlex
- W2081003716
- Cited by
- 381
- References
- 0
- FWCI
- 6.65
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Concussions Among University Football and Soccer Players. https://app.cochat.ai/papers/10.1097/00042752-200211000-00003
- The paper
- Delaney, J. S., Lacroix, V. J., Leclerc, S., & Johnston, K. M. (2002). Concussions Among University Football and Soccer Players. Clinical Journal of Sport Medicine. https://doi.org/10.1097/00042752-200211000-00003
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.