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Table 3 results of univariate and multivariate analysis of disease free survival

From: Regional radiotherapy versus an axillary lymph node dissection after lumpectomy: a safe alternative for an axillary lymph node dissection in a clinically uninvolved axilla in breast cancer. A case control study with 10 years follow up

   Univariate Multivariate
Factor No HR 95% CI HR 95% CI
S-group 341 1 Reference 1 Reference
RT-group 180 0.4 0.3–0.8 0.4 0.2–0.7
RT internal mammary chain      
Yes 220 1 Reference 1 Reference
No 301 1.0 0.7–1.6 0.7 0.4–1.1
pT1 393 1 Reference 1 Reference
pT2 128 1.6 1.0–2.6 1.8 1.1–2.8
Age 521 1.0 0.9–1.0 1.0 0.9–1.0