From: Impact of occupational exposures on exacerbation of asthma: a population-based asthma cohort study
Mild | Moderate | Severe | Overall | |
---|---|---|---|---|
Predictor categories | OR (95 % CI) | OR (95 % CI) | OR (95 % CI) | OR (95 % CI) |
Exposure in the past 12 monthsa | ||||
Gas, smoke or dust | 1.48 (0.96–2.28) | 0.94 (0.62–1.42) | 1.74 (1.17–2.58) | 1.39 (1.07–1.81) |
Smell of frying | 1.33 (0.74–2.38) | 1.38 (0.78–2.42) | 0.92 (0.53–1.60) | 1.20 (0.83–1.74) |
Car exhaust fumes/engine fumes | 1.03 (0.61–1.76) | 1.09 (0.67–1.77) | 1.12 (0.70–1.77) | 1.10 (0.80–1.51) |
Mineral dust | 1.23 (0.63–2.42) | 1.10 (0.58–2.10) | 1.10 (0.58–2.08) | 1.15 (0.76–1.74) |
Organic dust | 1.10 (0.71–1.71) | 1.17 (0.77–1.77) | 1.72 (1.18–2.51) | 1.36 (1.04–1.76) |
Inorganic dust | 1.30 (0.71–2.39) | 0.92 (0.51–1.68) | 1.25 (0.70–2.21) | 1.15 (0.79–1.67) |
Welding or metal smoke | 1.14 (0.58–2.25) | 1.07 (0.57–2.00) | 1.12 (0.59–2.12) | 1.12 (0.74–1.68) |
Chemicals | 1.52 (0.99–2.34) | 1.12 (0.74–1.70) | 1.10 (0.74–1.63) | 1.25 (0.96–1.62) |
Animals | 1.53 (0.84–2.78) | 0.48 (0.20–1.13) | 1.07 (0.61–1.90) | 1.00 (0.67–1.50) |
Dampness and mold | 1.08 (0.66–1.78) | 0.96 (0.59–1.57) | 1.79 (1.19–2.67) | 1.25 (0.93–1.68) |
Cold (in cold store/outside during the winter) | 1.48 (0.95–2.31) | 1.44 (0.89–2.34) | 1.74 (1.12–2.69) | 1.59 (1.17–2.15) |
Physically strenuous job | 1.48 (0.95–2.31) | 0.86 (0.56–1.31) | 1.55 (1.03–2.32) | 1.29 (0.99–1.69) |