Table 2. Associations of Presence of Spiculated Mass to Molecular Subtype.

	Spiculation	Non-Spiculation	P	Odds Ratio†
Luminal A	49 (50)	49 (50)	< 0.001	10.3 (3.4–30.8)
Luminal B	13 (13)	91 (87)	0.526	1.46 (0.46–4.76)
Luminal HER2	3 (8)	34 (92)	0.900	0.98 (0.19–4.32)
HER2	0 (0)	33 (100)	0.998	0.00 (0.00–30.8)
TNBC	4 (9)	41 (91)		1*
Total	69 (22)	248 (7)

Unless otherwise specified, data are numbers of masses, with percentages in parentheses. ^*Reference level in odds ratio calculation, ^†Data in parentheses are 95% confidence intervals. HER2 = human epithelial growth factor receptor 2, TNBC = triple-negative breast cancer