Skip to main content

Table 3 Univariate analysis for MRI findings of extramammary finding

From: Extramammary findings on breast MRI: prevalence and imaging characteristics favoring malignancy detection: a retrospective analysis

Variables Case numbers Benign (percentage) Malignancy (percentage) Univariate logistic regression
Odds ratio (95 % CI) P value
Multiplicity 149    5.13 (2.54, 10.37) 0.000
Single 76 55/76 (72.4) 21/76 (27.6)   
 Multiple 71 24/71 (33.8) 47/71 (66.2)   
Size (cm) 149 2.47 ± 1.98 1.99 ± 2.07 0.88 (0.74, 1.04) 0.159
T1 signal intensity 141    0.82 (0.41, 1.64) 0.574
 Hyperintense 52 30/52 (57.7) 22/52 (42.3)   
 Iso/hypointense 89 47/89 (51.6) 42/89 (46.1)   
T2 signal intensity 138    0.46 (0.23, 0.92) 0.028
 Hyperintense 86 53/86 (61.6) 33/86 (38.4)   
 Iso/hypointense 52 22/53 (42.3) 30/52 (57.7)   
Contrast enhancement 146    7.39 (2.86, 19.08) 0.000
 Presence 106 46/106 (43.4) 60/106 (56.6)   
 Absence 40 34/40 (85.0) 6/40 (15.0)   
DWI signal intensity 91    8.18 (1.00, 67.03) 0.049
 Hyperintense 80 44/80 (55.0) 36/80 (45.0)   
 Iso/hypointense 11 10/11 (90.9) 1/11 (9.1)   
Apparent diffusion coefficient map 81    38.70 (10.76, 139.20) 0.000
 Hyperintense 32 5/32 (15.6) 27/32 (84.4)   
 Iso/hypointense 49 43/49 (87.8) 6/49 (12.2)   
  1. CI confidence intervals, DWI diffusion-weighted imaging