Table 2 Characteristics of sentinel node and non sentinel node
| Â | Number | Percent |
|---|---|---|
N° of SLN Examined |  |  |
 1 | 1273 | 51.7 |
 2 | 801 | 32.6 |
 3 | 277 | 11.3 |
 4 | 88 | 3.5 |
 5 | 17 | 0.7 |
 6 | 4 | 0.2 |
N° of positive SLN |  |  |
 1 | 1765 | 71.8 |
 2 | 527 | 21.4 |
 3 | 136 | 5.5 |
 4 | 29 | 1.2 |
 5 | 3 | 0.1 |
SLN Micrometastases | 977 | 39.7 |
SLN Macrometastases | 1483 | 60.3 |
Median (range) | 14 (2–47) |  |
N° of NSLNs removed mean | 14.8 |  |
N° of positive NSLNs | 829 | 33.7 |
Median (range) | 2 (1–30) |  |
Mean | 3.2 | Â |
N Ratio: N° SLN / N° SLN removed |  |  |
<0.25 | 23 | 0.9 |
0.25–0.50 | 491 | 20.0 |
0.50–1.00 | 111 | 4.5 |
1 .00 | 1835 | 74.6 |
N° of Copies (Highest copy number) |  |  |
 ≤1500 | 615 | 25.0 |
 >1500–12,000 | 636 | 25.9 |
 >12,000–111,000 | 608 | 24.7 |
 >111,000 | 601 | 24.4 |
N° of Copies (Total Tumor Load) |  |  |
 ≤1500 | 607 | 24.7 |
 >1500–12,000 | 625 | 25.4 |
 >12,000–111,000 | 612 | 24.9 |
 >111,000 | 616 | 25.0 |