| Characteristic | Frequency, n (%) |
| Occupation group | |
| Professional, managerial, administrative, sales | 350 (80%) |
| Technician, service, trades, agriculture | 86 (20%) |
| Exposure likelihood by JEM | |
| Low likelihood of exposure | 316 (72%) |
| Moderate likelihood of exposure | 104 (24%) |
| High likelihood of exposure | 16 (4%) |
| Self-reported exposure to VGDF | 193 (44%) |
| No self-reported specific exposure to any of 19 specific | 10 (5%) |
| materials* | |
| Self-reported specific exposure to any of 19 specific materials* | 183 (95%) |
| Exposure to irritant gases or fumes (6 items)* | 122 (67%) |
| Exposure to biological materials (6 items)* | 162 (87%) |
| Exposure to synthetic organic chemicals (7 items)* | 99 (54%) |
*Percent of n from preceding header.
If the same job is reported at both interviews, self-reported exposure is based on the first interview response. JEM, job-exposure matrix; VGDF, vapours, gas, dust or fumes. Irritant gases or fumes includes: cleaners or bleach; irritant chemicals; smoke or combustion by-products; metal fumes or dust; refrigerants; flux or solder. Biological materials includes: plant dust or pollen; natural latex; cotton dust; wood dust; grain dusts or flours; animal hairs or dander; enzymes. Synthetic organic chemicals includes: paints, dyes or inks; pharmaceuticals; formaldehyde; sealant or shellac; urethanes; epoxies or other glues; photographic chemicals.