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Correction: Does reducing the height of the tackle through law change in elite men’s rugby union (The Championship, England) reduce the incidence of concussion? A controlled study in 126 games
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Stokes KA, Locke D, Roberts S, et al. Does reducing the height of the tackle through law change in elite men’s rugby union (The Championship, England) reduce the incidence of concussion? A controlled study in 126 games. Br J Sports Med 2021;55:220–225.

After publication of ‘Does reducing the height of the tackle through law change in elite men’s rugby union (The Championship, England) reduce the incidence of concussion? A controlled study in 126 games’, Dr Stokes was alerted to the fact that he had reported World Rugby trial rules as an ‘intervention’ in the same way that a researcher would report an ‘intervention’ such as administering a medication and a placebo. This did not reflect the true set of events in relation to this research. World Rugby had decided to trial certain rule changes with the aim of reducing concussion and the researchers (including Dr Stokes) had no influence in that decision. As Dr Stokes performs injury prevention and injury surveillance research with England Rugby, England Rugby contracted Dr Stokes to evaluate the rule changes that had been implemented.

The corrected manuscript reflects the order of decisions (rule change first, surveillance/evaluation of the rule change subsequently) and clearly explicates the roles of the parties at each stage (World Rugby as decision makers about the rule changes, researchers including Dr Stokes in subsequent research). The Editor would like to thank the person(s) who drew the Editors’ and authors’ attention to the errors in the version first published online.

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