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Figure 1. There were 340 patients in the study. *App + = number of patients with appendicitis and other diagnoses (eg, gynecologic pathologic entities, appendicular carcinoids, peritoneal carcinosis, spontaneous adhesion, and appendicular cancer) in which surgery was required, **App - = number of patients with a normal appendix at surgery, App + = number of patients who had a reconsultation and eventually underwent surgery in our emergency department or at another facility for suspicion of appendicitis or another diagnosis within 30 days of leaving the emergency department, App - = number of patients who did not have a new consultation for abdominal pain at any facility within 30 days after leaving the emergency department.