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Table 2 Moist Snuff and Cancer of the Mouth and Upper Respiratory Sites

From: Tobacco harm reduction: an alternative cessation strategy for inveterate smokers

Anatomic Site RR (95%CI) Studies Cases/Controls
Oral cavity 1.1 (0.8–1.6) 2 482/995
Pharynx 0.7 (0.4–1.4) 1 138/641
Oral cavity + pharynx 0.7 (0.4–1.2) 3 1682/3931
Larynx 1.2 (0.9–1.7) 2 544/3201
Oral + pharynx + larynx ---   ---
All sites 1.0 (0.8–1.2) 5 2846/4926