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Table 5 Breast cancer mortality reduction by radiation after conservative surgery (lumpectomy, conservation)

From: Radiation impact in breast cancer

  Hazard ratio Two-tailed Pvalue
Radiotherapy only to conserved breast 0.84 0.004
Radiotherapy only to conserved breast and other sites (lymph nodes) 0.83 0.0002
  1. Breast alone versus breast plus lymph nodes. Adapted from Early Breast Cancer Trialists Collaborative Group [6].