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Table 7 ORs of childhood renal tumors for the “risk gradient” analyses with significant radial effects

From: Methodological approaches to the study of cancer risk in the vicinity of pollution sources: the experience of a population-based case–control study of childhood cancer

Analysis

Analysis with categorical “exposure” variable (reference: [5–50 km])

Analysis with continuous “exposure” variable

[0–1 km)

[1–2 km)

[2–3 km)

[3–4 km)

[4–5 km]

OR

p-trend

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

All industries as a whole (analysis 2.a)

2.07 (1.13–3.78)

1.96 (1.09–3.54)

1.74 (0.90–3.35)

1.53 (0.65–3.58)

0.99 (0.35–2.86)

1.16

0.007

Category of industrial group (analysis 2.b)

       

Surface treatment of metals and plastic

2.60 (1.27–5.33)

1.92 (0.98–3.77)

1.39 (0.70–2.76)

1.53 (0.73–3.21)

1.60 (0.66–3.88)

1.18

0.012

Glass and mineral fibers

3.43 (0.54–21.76)

5.28 (1.63–17.12)

1.19 (0.39–3.60)

1.69 (0.56–5.11)

1.93 (0.67–5.56)

1.28

0.046

Urban waste-water treatment plants

2.35 (0.57–9.69)

2.23 (0.95–5.28)

1.89 (0.88–4.07)

2.35 (1.15–4.78)

1.46 (0.67–3.18)

1.19

0.034

Food and beverage sector

2.45 (1.04–5.80)

1.86 (0.93–3.72)

1.62 (0.72–3.69)

1.11 (0.43–2.88)

1.65 (0.78–3.48)

1.15

0.040

  1. OR odds ratio, 95% CI 95% confidence interval