Reference*

Study Population

Exposed Cases

Estimated RR (95% CI)

Gustavsson et al. 1998

138 pharyngeal cancer cases among male residents of two regions in Sweden (adjusted for smoking and alcohol consumption)

 

 

 

Asbestos (low)

24

1.01 (0.57-1.80)

 

Asbestos (high)

22

1.08 (0.62-1.91)

Zheng et al. 1992b

115 male oral or pharyngeal cancer cases among residents of Shanghai, China Asbestos, occupational exposure

16

1.81 (0.91-3.60)a

Merletti et al. 1991

86 oral cavity or oropharynx (n = 12) cancer cases among male residents of Turin, Italy (adjusted for smoking and alcohol consumption)

 

 

 

Any exposure

45

1.1 (na)

 

Probable or definite

3

0.4 (na)

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.

aOR and 95% CI calculated with standard methods from observed numbers of exposed cases and controls in original paper.



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