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Table 3 Dry 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 ----   ----
Pharynx ----   ----
Oral cavity + pharynx 4.0 (2.7–5.9) 3 298/947
Larynx ----   ----
Oral + pharynx + larynx 13 (8.0–20) 1 93/393
All sites 5.9 (1.7–20) 4 391/1340