Table 3 Multivariate analysis of the association between occupational and environmental factors and CRS
Adjusted OR (95 % CI)a | ||
|---|---|---|
Full model | Stepwise model | |
Clearance-related job | 1.93(1.11,3.38) | 1.90(1.09,3.29) |
Health care-related job | 0.60(0.38,0.96) | - |
Occupational exposure to dust | 2.22(1.58,3.12) | 2.21(1.58,3.10) |
Occupational exposure to poisonous gas | 1.82(1.15,2.88) | 1.77(1.12,2.80) |
Any pet at home | 1.17(0.89,1.52) | - |
Any carpet at home | 1.50(1.05,2.13) | 1.71(1.25,2.33) |
Any carpet at workplace | 3.70(2.26,6.05) | 3.76(2.32,6.09) |
Method of cooking at home (reference group: electric or gas) | ||
Coal | 0.84(0.41,1.72) | - |
Firewood | 0.79(0.37,1.71) | - |
Method of keeping warm in winter (reference group: electric or centralized heating) | ||
Coal | 1.12(0.59,2.14) | 1.06(0.58,1.94) |
Firewood/charcoal | 2.19(1.21,3.95) | 2.04(1.18,3.52) |
Frequency of using air conditioning in summer (reference group: <3 days/week) | ||
3–6 days/week | 1.16(0.92,1.46) | 1.16(0.92,1.45) |
Everyday | 1.38(1.02,1.87) | 1.38(1.02,1.87) |
Exposure to mouldy or damp environments (reference group: never) | ||
Occasionally | 1.50(1.13,2.01) | 1.49(1.12,1.98) |
Frequently or everyday | 2.41(1.50,3.85) | 2.37(1.48,3.79) |