Table 3 Observed (O), expected (E) cases and SIR of childhood leukaemia (0–14 years old) within 20 km of one of the 19 EGNS in France (1990–1998) according to distance from electric nuclear power and start-up year of the EGNS

From: Incidence of childhood leukaemia in the vicinity of nuclear sites in France, 1990–1998

Site characteristic

Characteristic class values

0–5 km

5–10 km

10–15 km

15–20 km

Total

Electric nuclear power a (MWe)

 1800

 
 

O

1

0

2

2

5

 

E

0.79

1.96

2.24

5.01

10.00

 

 SIR

1.27

0.00

0.89

0.4

0.5

 2600–2800

 
 

O

5

10

7

21

43

 

E

4.42

6.99

11.09

20.72

43.21

 

 SIR

1.13

1.43

0.63

1.01

1.00

 3600

 
 

O

1

16

15

17

49

 

E

2.63

13.03

11.45

15.44

42.56

 

 SIR

0.38

1.23

1.31

1.10

1.15

 5200–5400

 
 

O

1

8

9

10

28

 

E

2.80

9.15

11.43

17.87

41.25

 

 SIR

0.36

0.87

0.79

0.56

0.68

Start–up year

 <1980

 
 

O

2

8

9

14

33

 

E

2.27

6.80

7.38

14.15

30.61

 

 SIR

0.88

1.18

1.22

0.99

1.08

 1980–1984

 
 

O

1

11

14

12

38

 

E

3.62

12.14

14.03

17.70

47.49

 

 SIR

0.28

0.91

1.00

0.68

0.80

 1985–1989

 
 

O

5

12

5

12

34

 

E

3.71

10.27

8.88

21.13

43.99

 

 SIR

1.35

1.17

0.56

0.57

0.77

1990

 
 

O

0

3

5

12

20

 

E

1.03

1.92

5.92

6.06

14.93

 

 SIR

0.00

1.56

0.84

1.98

1.34

Total

 

O

8

34

33

50

125

 

E

10.64

31.13

36.21

59.03

137.01

 

SIR

0.75

1.09

0.91

0.85

0.91

  1. EGNS=electricity-generating nuclear sites; SIR=standardised incidence ratio; MWe=mega Watts.
  2. aElectric nuclear power of each EGNS is given by the number of units on site multiplied by the power of each unit (see Table 1 for individual site values).