74 / 1816
•
Eligibility
–
Trials of radiotherapy (RT) versus same surgery but no RT
–
Began before 2000
–
RT to conserved breast
•
Included
–
10 801 women in 17 trials
–
Follow-up to 2006 (median 9.5 years per woman)
–
Hormonal therapy in both trials arms for 43% of women
–
RT to regional nodes in some trials
Trials of Radiotherapy after
Breast Conserving Surgery (BCS
±
RT )
EBCTCG, Lancet 2011; 378: 1707-60
Lancet 2011