Lung Cancer Risk and Past Exposure to Emissions from a Large Steel Plant
Table 3
Relative risks for lung cancer in relation to cadmium exposure.
Range cadmium conc. period 1973–1984 (ng/m3)
Average population per year
No. of cases in 12 years
RR without smoothing 95% CI
RR after smoothing without SES 95% CI
RR after smoothing and SES correction 95% CI
Outside modelled area
n.a.
370,259
2,646
1
1
1
First quartile
0.30–0.42
60,837
443
0.97 0.88–1.07
0.90 0.74–1.09
0.99 0.85–1.10
Second quartile
0.42–0.72
69,253
381
0.93 0.84–1.04
0.95 0.79–1.15
0.95 0.83–1.10
Third quartile
0.73–0.87
57,464
501
1.19 1.08–1.31
1.26 1.01–1.61
1.11 0.94–1.30
Fourth quartile
0.89–1.65
41,758
446
1.34 1.21–1.48
1.38 1.06–1.83
1.23 1.03–1.50
RR for lung cancer in relation to cadmium exposure from the lowest (first) to the highest (fourth) exposure quartile with and without smoothing and correction for SES.
