Table 4.
Distribution of patients according to grouped age, type of breast cancer, localization of breast cancer, tumor diameter by category, number of axillary lymph nodes, estrogen and progestrone receptors, and HER2 protein levels
| Characteristic | Bone Metastasis (n) | p valueb | |
|---|---|---|---|
|
| |||
| + (174) | - (926) | ||
| Groups of Age | .530 | ||
| < 30 | 0 | 3 | |
| 30-39 | 16 | 96 | |
| 40-49 | 52 | 260 | |
| 50-59 | 32 | 239 | |
| > 60 | 74 | 328 | |
| CA Type | .626 | ||
| IDC | 143 | 783 | |
| IL-DC | 20 | 70 | |
| ILC | 11 | 52 | |
| Phyllodes | 0 | 1 | |
| Tubular Carcinoma | 0 | 16 | |
| Metaplastic Carcinoma | 0 | 4 | |
| CA Localization | .979 | ||
| Left Upper Outer | 52 | 245 | |
| Left Upper Inner | 17 | 76 | |
| Left Lower Outer | 13 | 68 | |
| Left Lower Inner | 9 | 67 | |
| Right Upper Outer | 43 | 226 | |
| Right Upper Inner | 6 | 62 | |
| Right Lower Outer | 16 | 70 | |
| Right Lower Inner | 10 | 45 | |
| Left Central | 1 | 2 | |
| Left Retroareolar | 4 | 31 | |
| Right Retroareolar | 4 | 34 | |
| Tumor diameter | .001 | ||
| < 1 cm | 3 | 98 | |
| 1-1.99 cm | 45 | 312 | |
| 2-2.99 cm | 47 | 275 | |
| > 3 cm | 79 | 241 | |
| Num. of axillary lymph nodes | .000 | ||
| 0 | 3 | 573 | |
| 1-3 | 54 | 252 | |
| ≥ 4 | 117 | 101 | |
| Estrogen Receptor (ER) | .472 | ||
| Positive | 148 | 758 | |
| Negative | 26 | 168 | |
| Progesterone Receptor (PgR) | .836 | ||
| Positive | 130 | 681 | |
| Negative | 44 | 245 | |
| HER2 | .886 | ||
| Positive | 24 | 146 | |
| Negative | 134 | 692 | |
| Indefinite | 16 | 88 | |
| HER2 Score | .727 | ||
| (-) | 101 | 561 | |
| (+) | 32 | 134 | |
| (++) | 20 | 98 | |
| (+++) | 21 | 133 | |
N: number; CA: Cancer; IDC: Invasive Ductal Carcinoma; IL-DC: Invasive Lobular-Ductal Carcinoma; ILC: Invasive Lobular Carcinoma; HER2: Human Epidermal Growth Factor Receptor 2.