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Dear Editor
For a relatively rare condition like motor neurone disease, should the sample size not be much bigger in order to reach a meaningful association!
I think the main lesson to take from this is to do a reverse study - how many people suffering from motor neurone disease have played rugby in the past (or how many boxers have later on gone to develop motor neurone disease).
Regards
Re: Former rugby players may be 15 times as likely to develop motor neuron disease, study finds
Dear Editor
For a relatively rare condition like motor neurone disease, should the sample size not be much bigger in order to reach a meaningful association!
I think the main lesson to take from this is to do a reverse study - how many people suffering from motor neurone disease have played rugby in the past (or how many boxers have later on gone to develop motor neurone disease).
Regards
Competing interests: No competing interests