2.9. Analysis.
Comparison 2 Sensitivity analysis: all‐cause mortality ‐ at maximum follow‐up, Outcome 9 Mortality ‐ at maximum follow‐up ‐ oxygen delivery system.
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.