Table 3 Estimates of the odds ratio (OR) for an address at diagnosis 5 km from the nearest nuclear power plant for various data subgroups, with 95% confidence intervals (CIs)

From: Leukaemia in young children in the vicinity of British nuclear power plants: a case–control study

Cancer

No. of cases

Age group (years)

Estimated OR at 5 km

95% CI

LNHL (13 plants)a

10 618

0–4

0.86

0.62–1.18

LNHL

5611

5–9

1.61

1.07–2.40

LNHL

3866

10–14

0.96

0.56–1.64

LNHL

20 095

0–14

1.06

0.85–1.33

Lymphoid leukaemia

8116

0–4

0.91

0.64–1.29

Acute myeloid leukaemia

1342

0–4

1.01

0.50–2.02

All leukaemiasa

9993

0–4

0.91

0.66–1.26

LNHL (14 plants)b

10 618

0–4

0.96

0.71–1.29

  1. Abbreviation: LNHL=leukaemia and non-Hodgkin lymphoma.
  2. Each estimate is interpolated from an unconditional logistic regression in which cases of LNHL are compared with other tumours; terms fitted are as in Table 2. The top line is the chosen primary analysis based on 13 plants.
  3. aSee text for definitions of the cancer groups.
  4. bThe last line shows the same subgroup analysed after the inclusion of Calder Hall (Sellafield).
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