is it me, or have they presented the numbers in a way that makes the risk of injury look higher?
in as much as they state that there were 147 children in the survey and they sustained 37 injuries, making it look like you have a roughly 1/4 chance of being injured. But if you consider that these statistics were collected over 193 matches, each of which must have involved at least 30 players; you arrive at a much lower injuy chance of approximately 1/156 per player per match.
Similarly, preceeding from the assumption that each match has 30 players and lasts for 80 mins (the minimum value for both, although admitedly there is such a thing as sevens and younger agegroups might play shorter matches) I arrive at an injury rate of 1 per 209 player hours which is approximately half the rate they report.
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branchandroot
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Date: 2010-07-05 09:27 pm (UTC)in as much as they state that there were 147 children in the survey and they sustained 37 injuries, making it look like you have a roughly 1/4 chance of being injured. But if you consider that these statistics were collected over 193 matches, each of which must have involved at least 30 players; you arrive at a much lower injuy chance of approximately 1/156 per player per match.
Similarly, preceeding from the assumption that each match has 30 players and lasts for 80 mins (the minimum value for both, although admitedly there is such a thing as sevens and younger agegroups might play shorter matches) I arrive at an injury rate of 1 per 209 player hours which is approximately half the rate they report.