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Results of the CCRG study
The main results are in table 1 of the published paper:
Table 1 Distance of address at birth from nearest National Grid
line for cases and controls in each diagnostic group, and estimated
relative risk (RR)
| Distance to line
(metres) |
Leukaemia |
CNS/brain tumors |
Other diagnoses |
| Cases |
Controls |
RR |
Cases |
Controls |
RR |
Cases |
Controls |
RR |
0-49
|
5 |
3 |
1.67 |
3 |
7 |
0.44 |
7 |
6 |
1.17 |
| 50-99 |
19 |
11 |
1.79 |
4 |
6 |
0.69 |
15 |
16 |
0.91 |
| 100-199 |
40 |
25 |
1.64 |
26 |
32 |
0.82 |
37 |
45 |
0.81 |
| 200-299 |
44 |
39 |
1.16 |
38 |
28 |
1.35 |
66 |
76 |
0.87 |
| 300-399 |
61 |
54 |
1.15 |
35 |
30 |
1.19 |
79 |
65 |
1.21 |
| 400-499 |
78 |
65 |
1.23 |
40 |
42 |
0.96 |
80 |
97 |
0.82 |
| 500-599 |
75 |
56 |
1.36 |
54 |
41 |
1.33 |
86 |
85 |
1.00 |
| greater than or equal to 600 (reference group) |
9378 |
9447 |
1.00 |
6405 |
6419 |
1.00 |
12,406 |
12,386 |
1.00 |
| Total |
9700 |
9700 |
|
6605 |
6605 |
|
12,776 |
12,776 |
|
CNS=central nervous system
The following graphs show these results for the three diagnostic
groups.
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