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Asbestos: Selected Cancers
Reference*
Study Population
Exposed Cases
Estimated RR (95% CI)
Hardell 1981
153 colon cancer cases among male residents of Umea, Sweden Asbestos, any
16
1.9 (1.0-3.6)
Hillerdal 1980
Gastrointestinal carcinoma cases among male residents of Uppsala county, Sweden (exposure = pleural plaques)
108 colon
3
1.67 (0.34-4.87) a
101 rectal
3
1.76 (0.36-5.16) a
NOTES: CI = Confidence interval; na = not available; RR = relative risk. Data points included in meta-analyses are bolded.
* Full citations can be found in the reference list for Chapter 6 .
a OR and 95% CI calculated with standard methods from observed and expected numbers presented in original paper.