Table 6

Hazard ratios (HR) for chronic obstructive pulmonary disease among male construction workers according to different exposures based on a Poisson regression analysis among never-smokers

Predictor (exposure)HR (95% CI)
Inorganic dust2.30 (1.07–4.96)
Gases and irritants3.85 (2.50–5.94)
Fumes4.44 (2.80–7.04)
Wood dust1.35 (0.11–17.2)
Age#15.1 (9.4–24.2)
  • CI: confidence interval

  • #: HR corresponds to an increase in age of 10 yrs