Table 3.

Multivariate logistic analysis

Factor	β	SE	Wald	P value	OR value	95% CI of EXP (B)
						Lower limit	Upper limit
Focus diameter	2.828	0.630	20.128	<0.001	16.908	4.916	58.159
Microcalcification	1.208	0.593	4.145	0.042	3.345	1.046	10.699
Capsular infiltration	0.506	0.649	0.607	0.436	1.658	0.465	5.918
Multiple foci	3.300	0.750	19.335	<0.001	27.101	6.227	117.957
PI	1.806	0.647	7.795	0.005	6.088	1.713	21.635
TTP	1.892	0.649	8.490	0.004	6.631	1.858	23.670
MTT	1.468	0.532	7.621	0.006	4.339	1.531	12.302

Note: PI: Peak intensity; TTP: Time to peak; MTT: Mean transit time; OR: odd ratio; CI: confidence interval; SE: standard error.