Age standardised leukaemia (ICD 7 204.0, 205.0, 205.1) incidence per 100000 person years (105 py) in ages 5–59 years, directly standardised incidence rate ratios (SIRR), and standardised incidence rate differences per 100000 person years (SIRD) with 95% confidence intervals (95% CI). European population restricted to ages 5–59 years is used as the standard
| Exposure kBq Cs-137/m2 | 1986-1987 | 1988–1996 | 1988–1996 minus 1986–1987 | ||||
|---|---|---|---|---|---|---|---|
| Cases (n) | Incidence per 105 py | SIRR (95% CI) | Cases (n) | Incidence per 105 py | SIRR (95% CI) | SIRD per 105 py (95% CI) | |
| <3 | 14 | 2.07 | 1.00 (reference for all SIRR) | 78 | 2.63 | 1.27 (0.71 to 2.25) | 0.56 (0.12 to 1.00) |
| 3–29 | 20 | 2.14 | 1.03 (0.52 to 2.05) | 119 | 2.86 | 1.38 (0.79 to 2.41) | 0.72 (0.31 to 1.13) |
| 30–39 | 1 | 0.66 | 0.32 (0.41 to 2.43) | 18 | 2.46 | 1.19 (0.58 to 2.40) | 1.80 (0.25 to 3.49) |
| 40–120 | 5 | 1.68 | 0.81 (0.29 to 2.26) | 35 | 2.64 | 1.27 (0.68 to 2.38) | 0.96 (0.57 to 1.34) |
| Total | 40 | 250 | |||||