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.
General characteristics of the cases
Values are expressed as number of cases or median (interquartile range). Appropriateness of anesthesia care was graded on a 1-9 point scale (1=totally avoidable injury, 9=totally unavoidable injury, if an appropriate standard of care had been used). ASA, American Society of Anesthesiologists; GA, general anesthesia; SP, spinal anesthesia; ED, epidural anesthesia; PNB, peripheral nerve block; LA, local anesthesia.
