Haven't finished reading through it but I can't see how a meta-analysis of studies which themselves tend to be highly flawed is much use. And forgive me if I don't trust it coming from Australia trying to justify their ridiculous mandatory helmet laws
^ full text of the study here http://m.ije.oxfordjournals.org/content/early/2016/09/06/ije.dyw153.full
Haven't finished reading through it but I can't see how a meta-analysis of studies which themselves tend to be highly flawed is much use. And forgive me if I don't trust it coming from Australia trying to justify their ridiculous mandatory helmet laws