Table 1 Patient demographics at baseline
|  | All patients, N = 61 | Patients with paired tumor samples, N = 54 |
|---|---|---|
Mean age (range) | 67 [53–86] | 67 [53–86] |
Tumor size (mean, range) | 1.7 [0.8–3.5] | 1.7 [0.8–3] |
Clinical tumor stage | ||
 T1 | 34 (55.7%) | 30 (55.6%) |
 T2 | 27 (44.3%) | 24 (44.4%) |
Clinical lymph nodal status | ||
 N0 | 58 (95.1%) | 53 (98.1%) |
 N1 | 3 (4.9%) | 1 (1.9%) |
Histological grade | ||
 G1 | 23 (37.7%) | 21 (38.9%) |
 G2 | 32 (52.4%) | 29 (53.7%) |
 G3 | 2 (3.3%) | 2 (3.7%) |
 NA | 4 (6.6%) | 2 (3.7%) |
ECOG | ||
 0 | 54 (88.5%) | 47 (87.0%) |
 1 | 7 (11.5%) | 7 (13.0%) |
Arms | ||
 Letrozole | 21 (34.4%) | 20 (37.0%) |
 mVNB | 20 (32.8%) | 15 (27.8%) |
 Letrozole+mVNB | 20 (32.8%) | 19 (35.2%) |