83 / 1816
19
Age < 40 yrs
Age 40 - 49 yrs
Age 50 - 59 yrs
Age 60 - 69 yrs
Age 70+ yrs
Effect of RT after BCS on recurrence in
pN0 women
by age at diagnosis
Lancet, 2011
Absolute benefit
of RT after
BCS varies substantially
across categories of age.
Same goes for other factors,
eg grade, tumour size. Need
to consider all factors at
once.