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Table 1 Pretreatment patient characteristics

From: Accelerated partial breast irradiation using once-daily fractionation: analysis of 312 cases with four years median follow-up

Characteristic

Value

Age (years)

 

Median

73

Range

42-89

Tumor size (cm)

 

Median

1.0

Range

0.1-3.5

Histology

 

Invasive ductal

213 (68%)

Invasive lobular

31 (10%)

DCIS

68 (22%)

Grade

 

Grade 1

142 (46%)

Grade 2

114 (37%)

Grade 3

53 (17%)

Not stated

3 (1%)

Invasive tumors - EIC present

 

Yes

34 (14%)

No

206 (84%)

Not stated

4 (2%)

Invasive tumors - LVI present

 

Yes

5 (2%)

No

235 (96%)

Not stated

4 (2%)

DCIS tumors - Necrosis present

 

Yes

36 (53%)

No

28 (41%)

Not stated

4 (6%)

Nodal Status of invasive cancer

 

N0

207 (85%)

N1

2 (1%)

Nx

35 (14%)

ER/PR status

 

Positive

282 (90%)

Negative

23 (7%)

Not stated

7 (2%)

HER-2/neu status of invasive cancer

 

Positive

11 (5%)

Negative

231 (95%)

Not stated

2 (1%)

Surgical margins

 

Negative (≥ 2 mm)

264 (85%)

Close (< 2 mm)

41 (13%)

Positive

7 (2%)

Chemotherapy

 

Yes

7 (2%)

No

305 (98%)

Hormonal therapy

 

Yes

166 (53%)

No

146 (47%)

  1. Abbreviations: EIC = extensive intraductal component; LVI = lymphovascular invasion