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