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Table 3:

Observed and Expected Lung Cancer Deaths
Among Workers Exposed to Glass Wool Fibers by Study

 Author  Observed  Expected  SMR
Shannon et al (1987) 19  9.53  199*
Enterline et al (1987) a 207  167  124*
  207  187.1  111
Marsh et al (1990) a 340  304  111.8*
  280  246.6  113.5*
Simonato et al (1987) 46  33.1  139*
Boffetta et al (1992) >30 years latency 14    2.43* (Relative Risk)

* p<0.05

a Includes two plants where exposures were to both fibrous glass wool and filaments

SMR=Standardized Mortality Ratio=how many deaths would have occurred if the expected number of deaths was 100.

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