Table 5

Results of the logistic regression analysis for respiratory symptoms and diseases with relation to cumulative exposure in dustyears, adjusted for factory, age, smoking habits, and gender

Cumulative exposure in dustyears (mg/m3 × years)
0≤2525–100>100
Results expressed as OR (95% CI). Cumulative exposure of less than 25 dustyears has been used as reference if there were no controls with symptoms or diseases.
Symptoms
    Nose bleeding11.9 (0.4 to 10.6) 2.9 (0.9 to 13.3) 3.0 (0.9 to 14.0)
    Mucosal irritation1 3.7 (1.6 to 9.1) 6.5 (2.8 to 17.2)
    Dry nose11.9 (0.5 to 8.0) 6.5 (2.4 to 21.2) 8.9 (3.4 to 28.7)
    Blocked nose15.9 (1.2 to 44.2)11.5 (3.2 to 74.6)18.2 (5.2 to 116.1)
    Sneezing attacks1 4.1 (0.6 to 80.7) 7.9 (1.0 to 170.7)
    Hoarseness1 2.4 (0.3 to 52.111.3 (1.4 to 247.1)
    Cough1 3.1 (1.3 to 8.2) 3.5 (1.4 to 9.7)
    Phlegm1 3.6 (0.6 to 71.0) 7.5 (1.1 to 154.2)
    Dyspnoea 1 3.1 (0.9 to 11.5)
    Exercise induced dyspnoea11.7 (0.4 to 6.8) 2.5 (0.9 to 7.8) 2.6 (1.0 to 7.6)
Diseases
    Sinusitis10.3 (0.1 to 1.5) 0.5 (0.2 to 2.0) 0.9 (0.3 to 3.7)
    Laryngitis1 0.5 (0.02 to 5.0) 1.1 (0.2 to 6.6)
    Chronic bronchitis10.2 (0.1 to 1.0) 1.1 (0.4 to 2.8) 1.5 (0.6 to 3.7)
    Asthma11.5 (0.2 to 14.0) 3.0 (0.6 to 23.2) 1.8 (0.3 to 13.9)
    Pneumonia11.1 (0.3 to 3.5) 1.3 (0.5 to 3.2) 0.6 (0.2 to 1.5)
    Tuberculosis1 3.3 (0.5 to 69.7) 3.4 (0.4 to 71.1)
    Acute bronchitis10.3 (0.03 to 1.3) 1.2 (0.4 to 4.0) 1.0 (0.4 to 3.2)