Table 3 Relative risks (RR) and 95% confidence intervals (CI) for towns situated at increasing distances from industries 2761 and 3730; and risk gradients with growing proximity to such industries. Adjusted estimates**

Industry 2761

< 5 km

1

1.437 [0.861–2.397]

1.439 [0.847–2.445]

1.340 [0.174–10.301]

0

-

-

-

5 – 10 km

1

2.411

[1.270–4.576]

2.621

[1.378–4.984]

-

1

2.425

[1.291–4.557]

2.631

[1.399–4.948]

-

10 – 15 km

5

1.500

[1.006–2.238]

1.525

[1.010–2.303]

1.216 [0.228–6.493]

4

1.503

[1.009–2.238]

1.527

[1.013–2.302]

1.220 [0.229–6.483]

15 – 20 km

8

1.384

[1.010–1.896]

1.367 [0.981–1.904]

1.486 [0.536–4.122]

8

1.391

[1.032–1.875]

1.371

[1.001–1.879]

1.500 [0.573–3.927]

20 – 50 km Reference level

79

1

1

1

79

1

1

1

0.022

0.022

0.776

0.0003

0.0003

0.813

Industry 3730

< 5 km

4

1.150 [0.899–1.471]

1.157 [0.894–1.496]

1.003 [0.419–2.401]

4

1.308

[1.003–1.707]

1.344

[1.017–1.775]

1.005 [0.401–2.518]

5 – 10 km

3

0.901 [0.666–1.218]

0.873 [0.637–1.196]

1.127 [0.393–3.230]

3

1.118 [0.805–1.554]

1.125 [0.798–1.587]

1.073 [0.349–3.305]

10 – 15 km

14

0.984 [0.873–1.110]

0.969 [0.854–1.099]

1.093 [0.751–1.589]

8

1.400

[1.096–1.789]

1.429

[1.104–1.849]

1.161 [0.525–2.569]

15 – 20 km

18

0.941 [0.862–1.026]

0.931 [0.849–1.022]

0.987 [0.761–1.281]

12

0.950 [0.789–1.143]

0.994 [0.819–1.206]

0.568 [0.284–1.137]

20 – 50 km Reference level

119

1

1

1

108

1

1

1

0.810

0.938

0.768

0.045

0.038