TABLE 1

Risk of respiratory symptoms in 2013, all study subjects, and regressed on joint and separate effects of occupational dust exposure and daily smoking

ExposureAll men#Daily smokers
OR (95% CI)
Nonsmokers
OR (95% CI)
Mineral dust
 Yes2.3 (1.6–3.2)7.2 (4.1–12.4)2.4 (1.6–3.8)
 No1.03.5 (2.4–5.1)1.0
Metal dust/fumes
 Yes1.9 (1.3–2.7)7.0 (4.0–12.1)1.7 (1.0–2.7)
 No1.03.3 (2.2–4.8)1.0
Organic dust
 Yes2.2 (1.6–3.1)7.4 (4.3–12.9)2.3 (1.5–3.4)
 No1.03.5 (2.4–5.2)1.0
Any dust
 Yes2.1 (1.6–2.8)7.2 (4.6–11.3)1.9 (1.3–2.8)
 No1.03.0 (1.9–4.8)1.0

#: adjusted for age and smoking; : adjusted for age.