Clinical and pathological features and risk factors for primary breast cancer patients

Table 1 Clinical and pathological features of patients with primary breast cancer

Clinical or pathological feature	n (%)
< 40 yr	34 (22.8)
40-59 yr	92 (61.8)
≥ 60 yr	23 (15.4)
Stage 0	16 (10.7)
Stage I	46 (30.9)
Stage II	57 (38.3)
Stage III	27 (18.1)
Stage IV	3 (2.0)
Luminal A	31 (20.8)
Luminal B (HER2 negative)	54 (36.2)
Luminal B (HER2 positive)	39 (26.2)
HER2 over expression type	11 (7.4)
Three negative type	14 (9.4)

HER2: Human epidermal growth factor receptor 2.