Table 1 Example of x-axis (time) and y-axis (Locoregional control) co-ordinates extracted with DigitizeIt (corresponding to Figure 1, radiotherapy arm, between 0 and 10 months)

1

0

1

2

0.18

0.994

3

0.42

0.989

4

0.91

0.979

5

1.39

0.974

6

1.88

0.969

7

2.6

0.964

8

2.85

0.959

9

3.33

0.933

10

3.34

0.923

11

3.58

0.901

12

3.83

0.865

13

4.07

0.85

14

4.56

0.828

15

4.8

0.817

16

5.29

0.777

17

5.54

0.767

18

5.78

0.759

19

6.02

0.749

20

6.51

0.716

21

6.75

0.711

22

7.73

0.671

23

7.97

0.661

24

8.21

0.651

25

8.46

0.638

26

8.7

0.628

27

8.7

0.626

28

8.95

0.621

29

9.43

0.616

30

9.92

0.61

31

10

0.608