FIGURE 2.
Time trends of observed blood transfusion (2013–2018), and post‐operative Hb less than 70 and 80 g/L transfusion thresholds (2011–2018) for all procedures.
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.