Summary of Interpretation of Data According to Canadian and National Institutes of Health (NIH) Criteria for Patients Younger Than 70 Years
| Information for interpretation | Patients, no./total no. (and %) | |
|---|---|---|
| Canadian | NIH | |
| Women requiring ALND to guide management | 68/211 (32.2) | 37/211 (17.5) |
| Women in whom ALND would not guide management | 143/211 (67.8) | 174/211 (82.5) |
| Women who would not have undergone ALND but had positive lymph nodes | 57/143 (39.9) | 65/174 (37.4) |
ALND = axillary lymph-node dissection.