All, % | Work-related asthma symptoms, adjusted OR (95% CI) | Work-exacerbated asthma, adjusted OR (95% CI) | Occupational asthma, adjusted OR (95% CI) | |
Self-reported exposures in the longest held job | ||||
Cleaning agents | ||||
Never/once a month | 17.6 | 1.00 | 1.00 | 1.00 |
At least once a week | 13.4 | 2.64 (0.57 to 12.14) | 1.66 (0.28 to 9.79) | 0.04 (0.01 to 0.31) |
Every day | 32.1 | 4.33 (1.14 to 16.37) | 0.74 (0.19 to 2.99) | 0.48 (0.10 to 2.41) |
More than once a day | 31.8 | 5.37 (1.43 to 20.16) | 2.28 (0.56 to 9.27) | 0.81 (0.17 to 3.86) |
p Value for trend | <0.001 | 0.064 | 0.219 | |
Disinfectants/sterilants | ||||
Never/once a month | 16.5 | 1.00 | 1.00 | 1.00 |
At least once a week | 13.1 | 1.66 (0.39 to 7.01) | 3.75 (0.35 to 40.18) | 0.04 (0.01 to 0.31) |
Every day | 28.3 | 2.83 (0.79 to 10.09) | 5.06 (0.79 to 32.48) | 0.52 (0.11 to 2.38) |
More than once a day | 37.2 | 2.96 (0.85 to 10.31) | 9.02 (1.47 to 55.35) | 0.71 (0.15 to 3.39) |
p Value for trend | <0.001 | 0.007 | 0.096 | |
Self-reported exposures in any job held for 6 months or longer | ||||
General purpose cleaning | ||||
Factor 1 | 3.93 (1.66 to 9.32) | 1.91 (0.71 to 5.15) | 1.30 (0.34 to 4.96) | |
Bleach | 55.5 | 3.72 (1.70 to 8.12) | 3.13 (1.08 to 9.08) | 3.22 (0.63 to 16.53) |
Room cleaners | 76.4 | 2.04 (0.78 to 5.34) | 0.94 (0.31 to 2.83) | 0.67 (0.16 to 2.87) |
Cleaners/abrasives | 56.4 | 2.50 (1.19 to 5.25) | 1.24 (0.42 to 3.65) | 1.32 (0.40 to 4.42) |
Cleaners for restroom and toilets | 57.5 | 4.60 (2.12 to 9.95) | 0.64 (0.24 to 1.72) | 1.39 (0.35 to 5.50) |
Detergents | 55.8 | 2.84 (1.33 to 6.08) | 1.96 (0.63 to 6.09) | 0.94 (0.29 to 3.07) |
Disinfectants | 80.9 | 2.50 (0.78 to 8.09) | 4.03 (0.86 to 18.79) | 3.93 (0.75 to 20.69) |
Ammonia | 23.0 | 2.45 (1.28 to 4.69) | 1.58 (0.56 to 4.43) | 1.86 (0.49 to 7.13) |
Instrument cleaning/sterilisation | ||||
Factor 2 | 2.14 (1.06 to 4.32) | 3.40 (1.35 to 8.53) | 2.25 (0.76 to 6.66) | |
Glutaraldehyde/ortho-phtaldehyde | 38.4 | 2.18 (1.17 to 4.07) | 1.57 (0.58 to 4.27) | 1.03 (0.29 to 3.58) |
Formalin/formaldehyde | 27.2 | 1.48 (0.71 to 3.07) | 2.66 (1.03 to 6.86) | 1.77 (0.55 to 5.75) |
Chloramines | 9.2 | 3.81 (1.79 to 8.11) | 2.02 (0.52 to 7.89) | 4.81 (1.28 to 18.06) |
Ethylene oxide | 7.6 | 2.97 (1.21 to 7.33) | 2.55 (0.41 to 15.86) | 1.61 (0.33 to 7.85) |
Number of exposures | ||||
0–2 | 20.3 | 1.00 | 1.00 | 1.00 |
3–5 | 22.2 | 1.66 (0.40 to 6.83) | 0.51 (0.07 to 3.74) | 1.25 (0.18 to 8.84) |
6 or more | 40.8 | 4.45 (1.25 to 15.86) | 1.56 (0.52 to 4.68) | 1.09 (0.22 to 5.48) |
p Value for trend | <0.001 | 0.054 | 0.445 |
OR adjusted for age, sex, race/ethnicity, body mass index, seniority, atopy and smoking status.