Serum Oxidative Stress Markers and Genotoxic Profile Induced by Chemotherapy in Patients with Breast Cancer: A Pilot Study

Table 2

Clinical characteristics of patients with breast ductal carcinoma ().

Characteristics	Breast cancer
Cancer sites [ (%)]
Left breast	11 (39.3)
Right mama	17 (60.7)
Clinical stage [ (%)]
Grade 1	4 (14.3)
Grade 2	10 (35.7)
Grade 3	14 (50.0)
Estrogen receptor [ (%)]
Negative	7 (25.0)
Positive	21 (75.0)
Progesterone receptor [ (%)]
Negative	7 (25.0)
Positive	21 (75.0)
HER2/neu [ (%)]
Score 0	9 (32.1)
Score +1	10 (35.7)
Score +2	1 (3.6)
Score +3	8 (28.3)

HER2/neu: human epidermal growth factor receptor 2.