Table 1. Clinical characteristics of the breast cancer patients, tumors treated and surgical procedures.
| Variable | Frequency (%) n = 200 |
|---|---|
| Smoking | 25.0 |
| Alcohol habit (> 20g/day) | 4.5 |
| Arterial hypertension | 28.0 |
| Diabetes | 8.5 |
| Dyslipidemia | 27.5 |
| Chronic obstructive pulmonary disease | 4.5 |
| Ischemic heart disease | 3.5 |
| Hypothyroidism | 9.0 |
| Menopause state | |
| Premenopausal | 24.5 |
| Perimenopausal | 12.0 |
| Postmenopausal | 63.5 |
| Intake of oral contraceptives | 30.5 |
| Tumor size (TNM system) | |
| T1 | 63.0 |
| T2 | 28.5 |
| T3 | 6.5 |
| T4 | 2.0 |
| Nodes (TNM system) | |
| N0 | 68.0 |
| N1 | 24.5 |
| N2 | 6.0 |
| N3 | 1.5 |
| Metastases (TNM system) | |
| M0 | 97.0 |
| M1 | 3.0 |
| Pathological anatomy of the tumor | |
| Ductal carcinoma in situ | 7.5 |
| Invasive ductal carcinoma | 79.0 |
| Lobular carcinoma in situ | 0.5 |
| Invasive lobular carcinoma | 1.5 |
| Papillary carcinoma | 6.5 |
| Others | 5.0 |
| Estrogen receptors | |
| Negative | 17.0 |
| Positive | 83.0 |
| Progesterone receptors | |
| Negative | 32.0 |
| Positive | 68.0 |
| Ki67 antigen in tumor biopsy | |
| Less than 15% | 42.5 |
| 15–50% | 44.5 |
| More than 50% | 13.0 |
| Her2 receptor in tumor biopsy | |
| Negative | 81.0 |
| Positive | 19.0 |
| Tumor molecular classification | |
| Luminal A | 34.0 |
| Luminal B | 36.5 |
| Her2 positive | 19.0 |
| Triple negative | 10.5 |
| Surgical procedure | |
| Lumpectomy | 79.0 |
| Mastectomy | 21.0 |
| Adjuvant chemotherapy | 60.0 |
| Adjuvant hormone therapy | 83.5 |