Occupational exposures | N (31 368) | Chronic cough | N (31 704) | Chronic phlegm | N (28 890) | Chronic bronchitis | N (11 341) | Airway obstruction |
OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |||||
Biological dust | ||||||||
No | 20 630 | Ref. | 20 845 | Ref. | 18 987 | Ref. | 7572 | Ref. |
Low | 9191 | 0.86 (0.74 to 1.01) | 9317 | 0.88 (0.74 to 1.05) | 8524 | 0.83 (0.64 to 1.07) | 3226 | 1.20 (0.87 to 1.64) |
High | 1547 | 1.10 (0.82 to 1.47) | 1542 | 1.08 (0.77 to 1.51) | 1379 | 1.18 (0.75 to 1.86) | 543 | 0.99 (0.53 to 1.86) |
Mineral dust | ||||||||
No | 25 030 | Ref. | 25 310 | Ref. | 23 181 | Ref. | 9099 | Ref. |
Low | 4605 | 0.88 (0.73 to 1.05) | 4664 | 1.03 (0.84 to 1.25) | 4193 | 0.90 (0.68 to 1.19) | 1640 | 0.81 (0.41 to 1.1.33) |
High | 1733 | 1.01 (0.77 to 1.33) | 1730 | 0.96 (0.71 to 1.32) | 1516 | 0.73 (0.46 to 1.15) | 602 | 0.77 (0.42 to 1.42) |
Gases/fumes | ||||||||
No | 17 188 | Ref. | 17 388 | Ref. | 15 927 | Ref. | 6274 | Ref. |
Low | 12 322 | 1.06 (0.90 to 1.25) | 12 452 | 1.01 (0.84 to 1.21) | 11 320 | 1.16 (0.89 to 1.51) | 4413 | 1.08 (0.79 to 1.47) |
High | 1858 | 1.22 (0.93 to 1.60) | 1864 | 1.05 (0.77 to 1.42) | 1643 | 1.45 (0.95 to 2.23) | 654 | 1.58 (0.90 to 2.79) |
Pesticides | ||||||||
No | 29 767 | Ref. | 30 095 | Ref. | 27 446 | Ref. | 10 815 | Ref. |
Low | 1227 | 1.15 (0.82 to 1.60) | 1232 | 0.98 (0.67 to 1.44) | 1110 | 1.28 (0.76 to 2.15) | 406 | 1.41 (0.69 to 2.87) |
High | 374 | 1.37 (0.88 to 2.13) | 377 | 1.64 (1.01 to 2.67) | 334 | 2.58 (1.32 to 5.07) | 120 | 2.31 (0.94 to 5.70) |
Solvents | ||||||||
No | 22 119 | Ref. | 22 390 | Ref. | 20 387 | Ref. | 8019 | Ref. |
Low | 7892 | 1.12 (0.95 to 1.32) | 7961 | 1.03 (0.86 to 1.23) | 7292 | 1.06 (0.82 to 1.38) | 2828 | 0.99 (0.71 to 1.38) |
High | 1357 | 1.07 (0.81 to 1.41) | 1353 | 1.09 (0.80 to 1.48) | 1211 | 0.92 (0.59 to 1.45) | 494 | 1.00 (0.58 to 1.73) |
Metals | ||||||||
No | 29 877 | Ref. | 30 216 | Ref. | 27 574 | Ref. | 10 784 | Ref. |
Low | 868 | 1.01 (0.74 to 1.36) | 868 | 1.10 (0.79 to 1.53) | 775 | 1.25 (0.78 to 1.98) | 338 | 0.77 (0.38 to 1.54) |
High | 623 | 0.98 (0.66 to 1.47) | 620 | 0.96 (0.61 to 1.53) | 541 | 0.81 (0.40 to 1.66) | 219 | 0.90 (0.37 to 2.18) |
Bold values are p<0.05.
The logistic regression was adjusted for baseline age, sex, education, monthly income, pack-years, smoking and coexposures.No exposure as reference group.