Stratified computed tomography findings improve diagnostic accuracy for appendicitis

Table 4 Risk estimations n (%)

Groups	Number of risk factors1	Patients with positive appendicitis	OR	95%CI	P value
Low-risk group	0-1	73 (65.8)	1.000
High-risk group	2-3	105 (92.9)	6.832	3.013-15.454	0.001

¹Risk factors include: appendiceal diameter ≥ 6.0 mm, presence of periappendiceal fat stranding, and intraluminal air in the appendix. Data refer to patients who underwent operation for suspicion of appendicitis based on clinical manifestations despite negative or equivocal computed tomography interpretation.