Number of expected (E) and observed (O) cases of leukaemia (0 to 24 year olds) and geographical location in the Nord Cotentin region between 1978 and 1998 (reference incidence rates from five general cancer registers, see table 2)
| Zones | Age (y) | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 to 4 | 5 to 9 | 10 to 14 | 15 to 24 | Total 0 to 24 | ||||||||||||||||||||
| O | E | SIR | 95% CI | O | E | SIR | 95% CI | O | E | SIR | 95% CI | O | E | SIR | 95% CI | O | E | SIR | 95% CI | |||||
| 0 to 10 km | 1 | 0.83 | 1.20 | 0.03, 6.71 | 3 | 0.47 | 6.38 | 1.32, 18.65 | 0 | 0.38 | 0.00 | 0.00, 9.704-150 | 1 | 0.62 | 1.61 | 0.04, 8.99 | 5 | 2.30 | 2.17 | 0.71, 5.07 | ||||
| 10 to 20 km | 4 | 7.67 | 0.52 | 0.14, 1.34 | 3 | 3.85 | 0.78 | 0.16, 2.28 | 5 | 3.09 | 1.62 | 0.53, 3.78 | 5 | 5.92 | 0.84 | 0.27, 1.97 | 17 | 20.53 | 0.83 | 0.48, 1.33 | ||||
| 20 to 35 km | 6 | 4.72 | 1.27 | 0.47, 2.77 | 3 | 2.70 | 1.11 | 0.23, 3.25 | 2 | 2.40 | 0.83 | 0.10, 3.01 | 5 | 4.28 | 1.17 | 0.38, 2.73 | 16 | 14.10 | 1.13 | 0.65, 1.84 | ||||
| entire study zone: 0 to 35 km | 11 | 13.22 | 0.83 | 0.42, 1.49 | 9 | 7.02 | 1.28 | 0.59, 2.43 | 7 | 5.87 | 1.19 | 0.48, 2.46 | 11 | 10.82 | 1.02 | 0.51, 1.82 | 38 | 36.93 | 1.03 | 0.73, 1.41 | ||||
| 10 to 20 km including Alderney | 4 | 7.79 | 0.51 | 0.14, 1.31 | 3 | 3.91 | 0.77 | 0.16, 2.24 | 5 | 3.15 | 1.59 | 0.52, 3.70 | 5 | 6.02 | 0.83 | 0.27, 1.94 | 17 | 20.68 | 0.81 | 0.48, 1.32 | ||||
↵4-150 One tail, 97.5% confidence intervals.