1582 / 1983
Baseline Characteristics (
Whelan et al, NEJM 2015)
WBI
N=916
WBI+RNI
N=916
Age
(mean)
53
54
Axillary nodes removed
(mean)
12
12
Node Negative
10%
10%
Node Positive (1-3)
85%
85%
Tumor size > 2cm
45%
50%
Grade III
42%
43%
ER Negative
26%
25%
Adjuvant chemotherapy
91%
91%
Adjuvant endocrine therapy
77%
77%
Boost irradiation
35%
32%
Median follow-up of 62 months