Attacks of SOB | Wheezing | Asthmatic symptom complex | Asthma | Asthma medicines | Chronic productive cough | |||||||
Prev % | OR (95% CI) | Prev % | OR (95% CI) | Prev % | OR (95% CI) | Prev % | OR (95% CI) | Prev % | OR (95% CI) | Prev % | OR (95% CI) | |
Manual workers in industry | 10 | 1.2 (0.83–1.6) | 15 | 1.3 (0.95–1.7) | 8.1 | 1.3 (0.86–1.9) | 3.2 | 0.77 (0.47–1.3) | 3.0 | 0.61 (0.37–1.0) | 3.6 | 1.4 (0.78–2.3) |
Manual workers in service | 14 | 1.6 (1.1–2.2) | 14 | 1.4 (1.0–1.9) | 7.9 | 1.4 (0.93–2.1) | 5.8 | 1.4 (0.90–2.1) | 6.1 | 1.3 (0.85–1.9) | 3.2 | 0.90 (0.53–1.5) |
Assistant non-manual employees | 13 | 1.6 (1.1–2.2) | 13 | 1.3 (0.90–1.7) | 8.2 | 1.4 (0.95–2.2) | 6.5 | 1.6 (1.1–2.5) | 6.8 | 1.5 (0.99–2.3) | 4.2 | 1.4 (0.80–2.3) |
Professionals | 8.0 | 1 | 9.9 | 1 | 5.4 | 1 | 3.9 | 1 | 4.3 | 1 | 2.7 | 1 |
Multiple logistic regression analyses were performed, with adjustment for age, sex, a family history of asthma and smoking habits. The self-employed and housewives were also included in the analyses; however, no significant associations were found. SOB: shortness of breath; OR: odds ratio; CI: confidence interval.