Br J Sports Med 46:675-683 doi:10.1136/bjsm.2010.081620
  • Original articles

Concussion information online: evaluation of information quality, content and readability of concussion-related websites

  1. Paul R McCrory2
  1. 1Centre for Physiotherapy Research, School of Physiotherapy, University of Otago, Dunedin, New Zealand
  2. 2Centre for Health, Exercise and Sports Medicine, University of Melbourne, Melbourne, Australia
  1. Correspondence to Professor S John Sullivan, Centre for Physiotherapy Research, University of Otago, PO Box 56, Dunedin 9054, New Zealand; sjohn.sullivan{at}
  • Accepted 22 March 2011
  • Published Online First 18 April 2011


Background The internet plays an important role in the dissemination of health information to the general public. Information on orthopaedic sports medicine websites has been shown to be of a varying standard, and to date there has been no evaluation of the overall quality of concussion-related websites.

Methods A four-stage methodological sampling technique was used to identify concussion-related websites. Websites were assessed for the presence of a quality standard (the HONcode), their adherence to current expert concussion knowledge using a custom-developed concussion checklist ('CONcheck'), and their readability using the established Flesch Reading Ease (FRE) and Flesch–Kincaid Grade Level (FKGL).

Results 43 Websites were identified from the search strategy with the majority (70%) not HONcode certified. A wide distribution of scores was seen for the CONcheck (0–22), FRE (16.3–77.4) and FKGL (6–17.8). Statistical analysis using independent t tests between websites with the HONcode and websites without the HONcode showed no significant differences between the two groups for CONcheck (t41=0.571, p=0.571), FRE (t41=0.808, p=0.424) and FKGL(t41=−0.964, p=0.341) scores.

Conclusions The variability in the standard of concussion-related websites highlights the need for sports medicine website providers to consider the delivery, content and readability of information to the public.


  • Funding This study was facilitated by funding from the International Rugby Board.

  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.

Free sample

This recent issue is free to all users to allow everyone the opportunity to see the full scope and typical content of BJSM.
View free sample issue >>

Email alerts

Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.

Navigate This Article