Table 3. Multivariate Logistic Regression Analysis of IHC Subtypes for Clinical and Radiologic Factors Compared to the Luminal A Subtype After Adjustment for Histologic Grade.

Variable	Luminal B (n = 54)		HER2+ (n = 35)		TN (n = 34)
	OR (95% CI)	P Value	OR (95% CI)	P Value	OR (95% CI)	P Value
Age	0.981 (0.947 - 1.015)	0.268	1.029 (0.987 - 1.072)	0.178	0.973 (0.929 1.019)	0.245
Symptoms
No	1.0		1.0		1.0
Yes	0.531 (0.255 - 1.106)	0.091	1.099 (0.449 - 2.691)	0.836	0.856 (0.315 - 2.323)	0.761
MMG finding
Negative	1.0		1.0		1.0
Asymmetry/mass	> 999.999 (< 0.001 -> 999.999)	0.951	> 999.999 (< 0.001 - > 999.999)	0.962	0.364 (0.049 - 2.734)	0.407
Mass with calcification	> 999.999 (< 0.001 - >999.999)	0.948	> 999.999 (< 0.001- > 999.999)	0.958	0.285 (0.027 - 2.983)	0.295
US BI-RADS
4a	1.0		1.0		1.0
4b	0.427 (0.075 - 2.417)	0.336	9.005 (1.414 - 57.348)	0.020	2.027 (0.329 - 12.475)	0.446
> 4c	1.284 (0.538 - 3.065)	0.573	4.669 (0.970 - 22.468)	0.055	1.398 (0.402 - 4.865)	0.598
Cancer type
IDC	1.0		1.0		1.0
Mucinous	1.200 (0.189 - 7.638)	0.847	3.000 (0.218 - 41.351)	0.412	< 0.001 (< 0.001 - > 999.999)	0.956
Medullary	> 999.999 (< 0.001 - > 999.999)	0.970	0.515 (< 0.001 - > 999.999)	0.999	< 0.001 (< 0.001 - > 999.999)	0.967
Papillary	< 0.001 (< 0.001 - > 999.999)	0.978	< 0.001 (< 0.001 - > 999.999)	0.982	< 0.001 (< 0.001 - > 999.999)	0.984
T-stage
T1	1.0		1.0		1.0
T2	1.226 (0.579 - 2.597)	0.595	3.173 (1.248 - 8.066)	0.015	2.376 (0.876 - 6.446)	0.089
T3	0.469 (0.046 - 4.783)	0.523	6.552 (1.252 - 34.296)	0.026	< 0.001 (< 0.001 - > 999.999)	0.989

Abbreviations: BI-RADS, breast imaging reporting and data system; IDC, invasive ductal carcinoma; MMG, mammographic; TN, triple negative; US, ultrasound; OR, odds ratio; HER2, human epidermal growth factor receptor 2; CI, confidence interval; IHC, immunohistochemical.