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2-year cumulative incidence of lymphedema after mastectomy (≥10% WAC) overall and by treatment group
| N | 2-year cumulative incidence | 95% Confidence Interval | ||
|---|---|---|---|---|
| Entire cohort | 664 | 13.82% | 11.01% | 17.27% |
| SLNB-no RT | 343 | 2.19% | 0.88% | 5.40 % |
| SLNB-RT | 34 | 10.00% | 2.60% | 34.40% |
| ALND-no RT | 58 | 19.27% | 10.79% | 33.05% |
| ALND-RT | 229 | 30.08% | 23.66% | 37.77% |
Abbreviations: SLNB = sentinel lymph node biopsy, ALND = axillary lymph node dissection, RT = radiation therapy
