Clinical significance of peri-appendiceal abscess and phlegmon in acute complicated appendicitis patients undergoing emergency appendectomy

Figure 1  Flowchart of the inclusion process of patients.

Figure 2 Kaplan-Meier survival curve analysis of postoperative length of hospital stay between patients with peri-appendiceal abscess and those with peri-appendiceal phlegmon. A: Kaplan-Meier analysis of postoperative length of hospital stay (LOS) comparing patients with peri-appendiceal abscess vs those with phlegmon; B: Kaplan-Meier analysis of postoperative LOS comparing patients with peri-appendiceal phlegmon, abscesses less than 5.0 cm, and abscesses 5.0 cm or larger. P values were calculated using the log-rank test. LOS: Length of hospital stay.