Ability of a meta-analysis to prevent redundant research: systematic review of studies on pain from propofol injection.

BMJ · 2014 · PMC4145062 · PMID 25161280

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did not reach statistical significanceno p-value reported

More data on children were deemed necessary, and although 17 new paediatric trials have been published, the proportional increase in paediatric trials did not reach statistical significance and may have occurred by chance.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.