Table 1: Features of population of 95 patients in study cohort.

Number of patients Node positive Number of patients Node negative Number of patients Neoadjuvant therapy Number of patients
No chemotherapy
Other*

Number of patients702547444
Tumor size by imaging
 5 mm–1 cm4 (6)6 (24)3 (6)7 (16)0 (0)
 >1 cm-2 cm 19 (27)7 (28)12 (26)13 (30)1 (25)
 >2 cm–5 cm 36 (51)11 (44)25 (53)20 (45)2 (50)
 >5 cm11 (16)1 (4) 7 (15)4 (9)1 (25)
Hilus present51 (73)22 (88)34 (72)36 (82)3 (75)
Hilus absent19 (27)3 (12)13 (28)8 (18)1 (25)
Cortex
 2 mm1 (1)0 (0)1 (2)0 (0)0 (0)
 2.1–4 mm13 (19)18 (72)9 (19)22 (50)0 (0)
 4.1–6 mm20 (29)3 (12)13 (28)9 (20)1 (25)
 >6 mm36 (51)4 (16)24 (51)13 (30)3 (75)
Shape
 Normal 21 (30)9 (36)13 (28)17 (39)0 (0)
 Focal bulge20 (29)12 (48)14 (30)10 (23)3 (75)
 Round23 (33)4 (16)16 (34)15 (34)1 (25)
 Ill-defined6 (9)0 (0)4 (8)2 (4)0 (0)
Number of suspicious nodes
 131 (44)14 (56)18 (38)24 (55)3 (75)
 216 (23)3 (12)11 (23)10 (23)0 (0)
 310 (14)5 (16)7 (15)5 (11)1 (25)
 4 or more13 (19)3 (12)11 (24)5 (11)0 (0)

Note. Numbers in parentheses are percentages. Percentages are rounded.
*Other: 4 patients were both core and FNA positive but did not have axillary surgery.