Table 3.

Influence of z-axis coverage and reader on the probability of correct final diagnosis

	Parameters	Odds ratio	p-value
Entire study group (n=152)a	Set S vs set L	0.61 (0.42, 0.88)	0.008
	Set M vs set L	0.94 (0.65, 1.38)	0.771
	Reader A vs Reader B	1.34 (0.99, 1.81)	0.057
Patients with acute appendicitis (n=46)	Set S vs set L	0.80 (0.31, 2.03)	0.635
	Set M vs set L	0.89 (0.34, 2.31)	0.808
	Reader A vs Reader B	0.54 (0.25, 1.19)	0.126
Patients without acute appendicitis (n=106)b	Set S vs set L	0.57 (0.34, 0.87)	0.009
	Set M vs set L	0.95 (0.62, 1.47)	0.824
	Reader A vs Reader B	1.47 (1.04, 2.07)	0.029

^aAppendicitis, alternative disease and non-specific abdominal pain (NSAP).

^bAlternative disease and NSAP. Data in parentheses are 95% confidence intervals.