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Table 1 Patients’ characteristics

From: Re-irradiation for oligo-recurrence from esophageal cancer with radiotherapy history: a multi-institutional study

  

With RT history (n = 33)

Without RT history (n = 215)

 

Age

 

n.s.

Median

66 y-o

66 y-o

Pathological stage (UICC 7th)

  

n.s.

 

I–II

13

111

 

III–IV

19

101

 

Unknown

1

4

 

Histology

p < 0.001 (Chi-squared test)

 

SCC

33

209

Others

0

6

Performance status (ECOG)

n.s.

 

0–1

26

199

 

2–3

4

16

 

Unknown

3

0

 

Tumor diameter

n.s.

 

Median

27 mm

22 mm

 

Disease-free interval

n.s.

 

Median

7.3 months

11.7 months

 

BED10

p < 0.001 (Mann-Whitney U test)

 

Median

67.2 GyBED

72.0 GyBED

Chemotherapy

n.s.

 

+

29

180

 

−

4

35

 

Irradiation field

p < 0.001 (Chi-squared test)

 

Involved

33

154

Elective nodal

0

61

  1. Abbreviations: RT radiotherapy, ECOG Eastern Cooperative Oncology Group, UICC Union for International Cancer Control, BED10 biological effective dose with α/β = 10 Gy, n.s not significant
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Radiation Oncology

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