Occupational exposure and new onset of rhinitis according to risk of occupation(model 1 and 2) and to exposure group (model 3)
| Rhinitis symptoms | Doctor-diagnosed rhinitis | |||
| Subjects n | OR (95% CI) | Subjects n | OR (95% CI) | |
| Model 1 | ||||
| Never worked | 1021 | 1 | 941 | 1 |
| No risk ever | 326 | 1.14 (0.87–1.49) | 304 | 1.11 (0.72–1.74) |
| Low risk ever# | 152 | 1.01 (0.69–1.46) | 147 | 1.02 (0.56–1.88) |
| High risk ever¶ | 183 | 1.49 (1.07–2.07) | 167 | 1.18 (0.68–2.04) |
| Model 2+ | ||||
| No risk ever | 326 | 1 | 304 | 1 |
| Low risk ever# | 152 | 1.02 (0.66–1.57) | 147 | 0.94 (0.47–1.90) |
| High risk ever¶ | 183 | 1.41 (0.97–2.07) | 167 | 1.08 (0.70–2.03) |
| Model 3+ | ||||
| Never | 326 | 1 | 304 | 1 |
| Low risk ever# | 152 | 1.04 (0.68–1.60) | 147 | 1.02 (0.51–2.05) |
| High risk ever¶ | ||||
| HMW ever | 86 | 1.13 (0.68–1.88) | 80 | 2.08 (0.98–4.41) |
| LMW ever | 103 | 1.78 (1.14–2.79) | 98 | 0.91 (0.43–1.97) |
| Mixed ever | 43 | 0.98 (0.50–1.95) | 38 | 0.69 (0.22–2.20) |
Odds ratios (OR; 95% confidence interval (CI)) were adjusted for centre, sex, socioeconomic status, active and passive smoking, and mutually adjusted for the other variables in the model. #: low-risk jobs, i.e. low level of exposure or low-risk agents (chemicals, irritants, fumes and/or environmental tobacco smoke); ¶: high-risk jobs, i.e. exposure to high molecular weight agents (HMW), low molecular weight agents (LMW), mixed environments (mixed) or very high level of irritants; +: restricted to subjects who ever had a job for >8 h·week−1 and ≥1 month duration.