Table 1 Estimates of the odds ratio (OR) for an address at birth 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 pairs

Age group (years)

Estimated OR at 5 km

95% CI

LNHL (13 plants)a

9821

0–4

0.86

0.49–1.52

LNHL

5043

5–9

1.28

0.60–2.73

LNHL

3341

10–14

2.70

0.42–17.4

LNHL

18 205

0–14

1.05

0.68–1.63

Lymphoid leukaemia

7529

0–4

0.96

0.51–1.80

Acute myeloid leukaemia

1246

0–4

0.43

0.09–2.09

All leukaemiasa

9260

0–4

0.85

0.48–1.51

All cancers except LNHL

15 726

0–4

0.89

0.53–1.50

LNHL (14 plants)b

9821

0–4

1.08

0.64–1.83

  1. Abbreviation: LNHL=leukaemia and non-Hodgkin lymphoma.
  2. Each estimate is interpolated from a conditional logistic regression in which father’s occupation is fitted in addition to proximity (see text). 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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