Table 1.

Clinicopathologic characteristics of 148 patients

Factor descriptionER-positive patients (n = 75), n (%)ER-negative patients (n = 73), n (%)
Age<5023 (31)33 (45)
≥5052 (69)40 (55)
Histologic typeIDC61 (81)69 (95)
ILC12 (16)2 (3)
Mixed2 (3)1 (1)
Metaplastic0 (0)1 (1)
Tumor grade118 (24)0 (0)
245 (60)14 (19)
312 (16)58 (81)
Tumor size<255 (73)44 (60)
2-519 (25)25 (34)
>51 (1)4 (5)
Lymph nodeNegative38 (51)43 (59)
Positive23 (31)26 (36)
Not sampled14 (19)4 (5)
American Joint Committee on Cancer stage*I29 (48)33 (48)
II-A23 (38)22 (32)
II-B7 (12)10 (14)
III-A1 (2)3 (4)
III-B0 (0)1 (1)
  • * Cases without lymph-node sampling are excluded from staging.