Table 3 Univariate analysis for MRI findings of extramammary finding
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) | ||