1814 / 1816
EBCTCG: Effect of RT after BCS on recurrence and
breast cancer mortality in pN0 women
In the randomised trials, the
proportional benefit of RT
after BCS similar across
categories of age, tumour
grade and tumour size, etc.
Proportional effects of
individual treatments also
stable against different
background treatments and
across calendar year
NB certain exceptions:
hormonal therapy in ER+ vs
ER-, RT after Mast in pN0 vs
pN+
EBCTCG, Lancet, 2011; 378:1707