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Table 1 Characteristics of patients and tumors (NA = not assessed, IDC = invasive ductal carcinoma, ILC = invasive lobular carcinoma)

From: Variations of circulating cardiac biomarkers during and after anthracycline-containing chemotherapy in breast cancer patients

Characteristics Primary breast cancer patients (n = 45)
Median age (range) (y) 49 (26–78)
Estrogen receptor [n (%)] 29 (64)
Progesterone receptor [n (%)] 26 (58)
HER2 [n (%)] 17 (38)
Ki67 (median ± SD) (%) 30 ± 24
Initial T staging [n (%)]
 NA 0
 1 4 (9)
 2 23 (51)
 3 7 (16)
 4 11 (24)
Lymph node involvement [n (%)] 33 (73)
Tumor node metastasis (TNM) stage [n (%)]
 NA 0
 1 0
 2 26 (58)
 3 19 (42)
Scarff-Bloom-Richardson grading system [n (%)]
 NA 0
 1 0
 2 19 (42)
 3 26 (58)
Histologic subtype [n (%)]
 NA 0
 IDC 42 (93)
 ILC 3 (7)
 Others 0
Lymphovascular invasion [n (%)] 9 (20)
Cardiovascular risk factors [n (%)]
 Smoking 12 (27)
 Type 2 diabetes 4 (9)
 High blood pressure 9 (20)
 Obesity 7 (16)
 Dyslipidemia 21 (47)
 Chronic kidney disease 2 (4)
Left ventricular ejection fraction (median ± SD) (%)
 Before chemotherapy 64 ± 11
 After chemotherapy 60 ± 29