Table 1 Patient, tumor, and treatment-related characteristics (n = 208).

From: Hypofractionated partial breast irradiation after breast-conserving surgery for patients with early stage breast cancer in China Mainland: a single-arm prospective trial

Variable

No. (%)

Age (years)

 50–59

76 (36.5%)

 60–69

107 (51.5%)

 ≥ 70

25 (12.0%)

Menopausal status

 Pre- or peri-

27 (13.0%)

 Post-

181 (87.0%)

Side

 Left

108 (51.9%)

 Right

100 (48.1%)

Pathological T-stage

 T1a

16 (7.7%)

 T1b

57 (27.4%)

 T1c

135 (64.9%)

Grade

 I-II

174 (83.7%)

 III

34 (16.3%)

LVI

 Positive

17 (8.2%)

ER status

 Positive

208 (100%)

PR status

 Positive

181 (87.0%)

Ki-67 index

 <20%

98 (47.1%)

 ≥20%

110 (52.9%)

Molecular subtype

 Luminal A

91 (43.8%)

 Luminal B (HER2-)

110 (52.9%)

 Luminal B (HER2+)

7 (3.4%)

OPS

 Yes

12 (5.8%)

Axillary surgery

 SLNB

199 (95.7%)

 ALND

9 (4.3%)

No. of nodes

 1–4

145 (69.7%)

 5–9

53 (25.5%)

 ≥ 10

10 (4.8%)

Systemic therapy

 Endocrine therapy

208 (100%)

 Chemotherapy

65 (31.3%)

 Anti-HER2 therapy

6 (2.9%)