Table 1 Patient and breast cancer characteristics
Study population | Ineligible population | p value | |
|---|---|---|---|
n=116 | n=41 | ||
Number (%) | Number (%) | ||
Age at diagnosis | |||
Median (yrs) | 50 | 50 | |
Range | (31–85) | (34–73) | |
Year breast cancer diagnosis | |||
Pre - 2000 | 26 (22) | 20 (49) | |
2000–2001 | 19 (16) | 6 (15) | 0.01 |
2002–2003 | 29 (25) | 3 (8) | |
2004–2005 | 21 (18) | 9 (23) | |
2006–2007 | 16 (14) | 2 (5) | |
2008-2009 | 5 (4) | 1 (3) | |
Disease interval to biopsy (yrs) | |||
0 (metastatic at diagnosis) | 9 (8) | 5 (12) | |
0.5 – 2y | 29 (25) | 2 (5) | 0.02 |
2.1 – 5 | 44 (38) | 14 (34) | |
>5y | 34 (29) | 20 (49) | |
Type of biopsy | |||
Local recurrence site | 40 (34) | 7 (17) | 0.05 |
Distant recurrence site | 76 (66) | 34 (83) | |
Site of recurrent or metastatic biopsy | |||
Breast | 24 (20) | 3 (7) | |
Lymph nodes | 20 (17) | 10 (24) | |
Chest wall / Skin | 18 (16) | 4 (10) | 0.13 |
Bone | 14 (12) | 9 (22) | |
Liver | 9 (8) | 5 (12) | |
Brain | 9 (8) | 2 (5) | |
Lung | 7 (6) | 0 | |
Others | 15 (13) | 8 (20) | |
Type of tissue biopsy | |||
Fine needle aspiration | 34 (29) | 13 (32) | 0.84 |
Core / Excisional biopsy | 82 (71) | 28 (68) |