| Low Risk* | Medium-to-high risk§ | p value |
---|
| N and % | N and % | |
---|
2002
| 6/42 | 268/409 | 0.04 |
(14.3%) | (65.5%) |
2004
| 1/71 | 252/396 |
| (1.4%) | (63.6%) | |
- ER: estrogen receptor.
- * ER-positive and size ≤ 2 cm and grading=1 with negative lymph node status.
- § ALL patients with positive lymph node status or estrogen receptor-negative or size > 2 cm or grading ≥ 2 regardless of lymph node status.