Table 1 Summary Relative Risks (95% Confidence Interval) for Smokeless Tobacco Use and Cancer From Two Meta-Analyses
From: The scientific foundation for tobacco harm reduction, 2006-2011
Cancer (n = Boffetta: Lee-Hamling estimates) | Boffetta et al. | Lee-Hamling |
|---|---|---|
Oral Cavity | Â | Â |
   All (11:41) | 1.8 (1.1 - 2.9) | 1.79 (1.36 - 2.36) |
   Adjusted for smoking (0:19) | NA | 1.36 (1.04 - 1.77) |
   Adjusted for smoking/alcohol (0:10) | NA | 1.07 (0.84 - 1.37) |
Esophagus | Â | Â |
   All | 1.6 (1.1 - 2.3) | 1.25 (1.03 - 1.51) |
   Adjusted for smoking | NA | 1.13 (0.95 - 1.36) |
Pancreas | Â | Â |
   All (6: 7) | 1.6 (1.1 - 2.2) | 1.00 (0.68 - 1.47) |
   Adjusted for smoking (0:7) | NA | 1.07 (0.71 - 1.60) |
Lung | Â | Â |
   All (5: 9) | 1.2 (0.7 - 1.9) | 0.96 (0.73 - 1.27) |
   Adjusted for smoking (0: 6) | NA | 0.99 (0.71 - 1.37) |