Prone v supine positioning for acute respiratory failure*

MortalityProneSupineRRR (95% CI)NNT (CI)
At 10 days21%25%16% (–27 to 44)Not significant
RRI (CI)NNH (CI)
*ICU = intensive care unit. Abbreviations defined in glossary; RRR, RRI, NNT, NNH, and CI calculated from data in article.
At ICU discharge51%48%5% (–16 to 32)Not significant
At 6 months63%59%6% (–12 to 28)Not significant