Percutaneous dilatational tracheostomy versus surgical tracheostomy in critically ill patients: a systematic review and meta-analysis.

Crit Care · 2006 · PMC1550905 · PMID 16606435

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a possible trendno p-value reported

While there was no statistically significant reduction in mortality with either technique, a possible trend towards lower mortality with use of PDT warrants further discussion.

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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.