| Categorical intensity levels* (only low or ever medium–high) | ||
| Level | OR (95% CI) | |
| All SNEC | ||
| Wood dust | Low | 3.2 (1.36 to 7.44) |
| High | 30.6 (11.93 to 78.30) | |
| Leather dust | Low | 17.6 (1.84 to 168.5) |
| High | 11.9 (1.12 to 127.1) | |
| Solvent vapours | Low | 2.3 (1.15 to 4.46) |
| High | 2.1 (0.65 to 6.67) | |
| Welding fumes | Low | 3.3 (1.47 to 7.26) |
| High | 1.6 (0.34 to 7.75) | |
| Arsenic† | Ever exposed | 4.1 (1.21 to 13.76) |
| Adenocarcinoma | ||
| Wood dust | Low | 16.6 (5.10 to 54.04) |
| High | 179.9 (55.37 to 584.4) | |
| Leather dust | Low | 52.4 (3.71 to 740.2) |
| High | 68.8 (5.60 to 844.7) | |
| Solvent vapours | Low | 4.5 (1.54 to 12.90) |
| High | 3.8 (0.67 to 21.58) | |
| Squamous cell carcinoma | ||
| Welding fumes | Low | 3.5 (1.31 to 9.60) |
| High | 4.3 (1.01 to 18.10) | |
| Arsenic† | Ever exposed | 4.3 (1.01 to 18.10) |
| Other histotypes | ||
| Wood dust | Low | 2.1 (0.42 to 10.50) |
| High | 16.0 (3.93 to 65.24) | |
| Solvent vapours | Low | 4.8 (1.72 to 13.39) |
| High | 2.9 (0.33 to 24.73) | |
| Acid mists | Low | 5.6 (1.25 to 25.11) |
| High | 17.1 (1.42 to 206.7) | |
*Based on years of exposure weighted only by probability.
†Could not be categorised by intensity.