Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Jun 15;10(6):e035420. doi: 10.1136/bmjopen-2019-035420

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

PMC Copyright notice

Forest plot of the result of univariate analysis for partial pressure of arterial oxygen/fraction of inspired oxygen (PaO₂/FiO₂) ratio (combined by OR). The result of univariate analysis in three studies was pooled for meta-analysis and a total of 236 patients were included. PaO₂/FiO₂ ratio was significantly associated with all-cause mortality with an OR of 0.92 (95% CI 0.89 to 0.95, p<0.00001). There was mild heterogeneity with no statistical significance (χ²=2.46, p=0.29, I²=19%). The 95% prediction interval ranged from 0.75 to 1.13.