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Table 2 Average EAR expressed in number of cases per 10,000 persons per year for Group 1 and Group 2

From: Proton pencil beam scanning reduces secondary cancer risk in breast cancer patients with internal mammary chain involvement compared to photon radiotherapy

 

EAR30-70 (number of cases per 10,000 persons per year)

3D-CRT

PT

Linear

Lin-exp

Lin-plat

Linear

Lin-exp

Lin-plat

Group 1

 Ipsilateral lung

85 ± 18

27 ± 3

25 ± 3

44 ± 22

16 ± 7

14 ± 6

 Contralateral lung

3 ± 1

3 ± 1

3 ± 1

1 ± 1

0 ± 1

0 ± 1

 Contralateral breast

7 ± 3

6 ± 2

6 ± 2

0 ± 0

0 ± 0

0 ± 0

 

VMAT

PT

Linear

Lin-exp

Lin-plat

Linear

Lin-exp

Lin-plat

Group 2—FB

 Ipsilateral lung

131 ± 17

40 ± 3

37 ± 3

63 ± 5

20 ± 3

18 ± 2

 Contralateral lung

55 ± 8

35 ± 3

30 ± 2

2 ± 2

1 ± 1

1 ± 1

 Contralateral breast

44 ± 6

35 ± 4

31 ± 3

0 ± 0

0 ± 0

0 ± 0

Group 2—DIBH

 Ipsilateral lung

108 ± 15

35 ± 3

33 ± 3

53 ± 11

20 ± 2

17 ± 2

 Contralateral lung

46 ± 4

29 ± 2

25 ± 1

1 ± 0

1 ± 0

1 ± 0

 Contralateral breast

43 ± 7

34 ± 5

31 ± 4

0 ± 0

0 ± 0

0 ± 0

  1. EAR are reported for the three OARs considered, according to the linear, linear-exponential and linear-plateau models. Uncertainty indicates the standard deviation