Table 7 Exposure to wood dust, tobacco smoking and formaldehyde in sinonasal cancer cases with and without K-ras mutations.
From: K-rasmutations in sinonasal cancers in relation to wood dust exposure
K-ras mutations | ||||
|---|---|---|---|---|
Characteristics | Total | Mutation/wild type | OR1 (95%CI) | OR2 (95%CI) |
Wood dust exposure | ||||
No | 134 | 4/130 | 1 | 1 |
Yes | 40 | 4/36 | 3.6 (0.9–15.2) | 2.0 (0.2–16.5) |
Age | 174 | 8/166 | 0.97 (0.92–1.02) | 1.0 (0.9–1.1) |
Sex | ||||
Male | 111 | 7/104 | 1 | 1 |
Female | 63 | 1/62 | 0.2 (0.03–2) | 0.3 (0.03–3.1) |
Tobacco smoking | ||||
No | 15 | 2/13 | 1 | 1 |
Yes | 69 | 5/64 | 0.5 (0.1–2.9) | 0.4 (0.1–2.6) |
Unknown | 90 | 1/89 | 0.1 (0.001–0.9) | - |
Formaldehyde exposure | ||||
No | 50 | 4/46 | 1 | 1 |
Yes | 35 | 3/32 | 1.1 (0.2–5.1) | 0.5 (0.1–3.9) |
Unknown | 89 | 1/88 | 0.1 (0.01–1.2) | - |