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**

Distance		Total towns				Towns with fewer than 10,000 inhabitants
	No*	Total	Men	Women	No*	Total	Men	Women
		RR [95% CI]	RR [95% CI]	RR [95% CI]		RR [95% CI]	RR [95% CI]	RR [95% CI]
				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
Trend p-value		0.022	0.022	0.776		0.0003	0.0003	0.813
Distance				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
Trend p-value		0.810	0.938	0.768		0.045	0.038

*Number of towns within this distance range. **Adjusted for population size, illiteracy, unemployment, farming, income and persons per dwelling. Statistically significant results shown as bold.