. Author manuscript; available in PMC: 2010 Nov 9.

Published in final edited form as: Acad Radiol. 2007 Jan;14(1):38–48. doi: 10.1016/j.acra.2006.09.048

Table 2.

Area under ROC (A_z) estimated for the likelihood of malignancy based on the 6, 11, 21 and 101 category confidence rating scales for the three reading modes – independent (Ind), sequential without CAD (NoCAD Seq), and sequential with CAD (With CAD). The statistical significance (p-value) in the differences between pairs of the reading modes was estimated by the DBM method as shown in the last three columns.

Scale	Ind	NoCAD-Seq	With CAD	DBM
	A	B	C	A-C	B-C	A-B
6	0.787	0.810	0.847	0.0082	0.0036	0.1436
11	0.786	0.807	0.844	0.0106	0.0017	0.2200
21	0.787	0.808	0.844	0.0076	0.0014	0.2207
101	0.787	0.811	0.843	0.0051	0.0011	0.139