PT - JOURNAL ARTICLE AU - Roald Bahr AU - Ben Clarsen AU - Wayne Derman AU - Jiri Dvorak AU - Carolyn A Emery AU - Caroline F Finch AU - Martin Hägglund AU - Astrid Junge AU - Simon Kemp AU - Karim M Khan AU - Stephen W Marshall AU - Willem Meeuwisse AU - Margo Mountjoy AU - John W Orchard AU - Babette Pluim AU - Kenneth L Quarrie AU - Bruce Reider AU - Martin Schwellnus AU - Torbjørn Soligard AU - Keith A Stokes AU - Toomas Timpka AU - Evert Verhagen AU - Abhinav Bindra AU - Richard Budgett AU - Lars Engebretsen AU - Uğur Erdener AU - Karim Chamari TI - International Olympic Committee consensus statement: methods for recording and reporting of epidemiological data on injury and illness in sport 2020 (including STROBE Extension for Sport Injury and Illness Surveillance (STROBE-SIIS)) AID - 10.1136/bjsports-2019-101969 DP - 2020 Apr 01 TA - British Journal of Sports Medicine PG - 372--389 VI - 54 IP - 7 4099 - http://bjsm.bmj.com/content/54/7/372.short 4100 - http://bjsm.bmj.com/content/54/7/372.full SO - Br J Sports Med2020 Apr 01; 54 AB - Injury and illness surveillance, and epidemiological studies, are fundamental elements of concerted efforts to protect the health of the athlete. To encourage consistency in the definitions and methodology used, and to enable data across studies to be compared, research groups have published 11 sport-specific or setting-specific consensus statements on sports injury (and, eventually, illness) epidemiology to date. Our objective was to further strengthen consistency in data collection, injury definitions and research reporting through an updated set of recommendations for sports injury and illness studies, including a new Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) checklist extension. The IOC invited a working group of international experts to review relevant literature and provide recommendations. The procedure included an open online survey, several stages of text drafting and consultation by working groups and a 3-day consensus meeting in October 2019. This statement includes recommendations for data collection and research reporting covering key components: defining and classifying health problems; severity of health problems; capturing and reporting athlete exposure; expressing risk; burden of health problems; study population characteristics and data collection methods. Based on these, we also developed a new reporting guideline as a STROBE Extension—the STROBE Sports Injury and Illness Surveillance (STROBE-SIIS). The IOC encourages ongoing in- and out-of-competition surveillance programmes and studies to describe injury and illness trends and patterns, understand their causes and develop measures to protect the health of the athlete. Implementation of the methods outlined in this statement will advance consistency in data collection and research reporting.