Skip to main content
. Author manuscript; available in PMC: 2013 Oct 1.
Published in final edited form as: Ann Surg. 2012 Oct;256(4):586–594. doi: 10.1097/SLA.0b013e31826a9602

Figure Four. Appendicitis Patients with Perforation.

Figure Four

Hospitals are stratified by the year in which they joined SCOAP (represented by black lines that begin with the year in which that group of hospitals first submitted cases to SCOAP). The solid gray line indicates the number of patients with perforation as a percentage of all patients with appendicitis from all hospitals participating in SCOAP in any particular year. There was no temporal trend for the overall frequency of perforation (p = 0.63).