Exposure metrica | Cases (%) | Controls (%) | ORb (95 % CI) | ||||
---|---|---|---|---|---|---|---|
Ever exposed | |||||||
No | 957 | (54.0) | 783 | (42.4) | 1.00 | ||
Yes | 814 | (46.0) | 577 | (57.6) | 1.10 | (0.93, | 1.31) |
Highest attained exposure concentration | |||||||
Unexposed | 957 | (54.0) | 783 | (57.7) | 1.00 | ||
Low | 647 | (36.5) | 462 | (34.0) | 1.17 | (0.97, | 1.41) |
Medium | 109 | (6.2) | 71 | (5.2) | 1.04 | (0.73, | 1.49) |
High | 58 | (3.3) | 44 | (3.2) | 1.04 | (0.67, | 1.63) |
p-trend | 0.77 | ||||||
Duration of exposure (years) | |||||||
Unexposed | 957 | (54.7) | 783 | (58.1) | 1.00 | ||
> 0 to <7 | 245 | (14.0) | 179 | (13.3) | 1.07 | (0.84, | 1.36) |
≥ 7 to ≤26 | 285 | (16.3) | 196 | (14.5) | 1.11 | (0.88, | 1.40) |
> 26 | 264 | (15.1) | 190 | (14.1) | 1.11 | (0.84, | 1.45) |
p-trend | 0.32 | ||||||
Duration of exposure at high concentration (years) | |||||||
Unexposed | 1713 | (96.9) | 1316 | (97.1) | 1.00 | ||
> 0 to ≤5 | 30 | (1.7) | 21 | (1.6) | 0.95 | (0.51, | 1.75) |
> 5 | 25 | (1.4) | 18 | (1.3) | 1.11 | (0.57, | 2.17) |
p-trend | 0.83 | ||||||
Frequency of exposure | |||||||
Unexposed | 1110 | (64.1) | 852 | (66.6) | 1.00 | ||
Low: 5 % | 46 | (2.7) | 56 | (4.4) | 0.68 | (0.43, | 1.07) |
Medium: 6–30 % | 437 | (25.3) | 282 | (22.0) | 1.10 | (0.89, | 1.36) |
High: >30 % | 138 | (8.0) | 90 | (7.0) | 1.09 | (0.79, | 1.49) |
p-trend | 0.33 | ||||||
Cumulative occupational exposurec | |||||||
Unexposed | 957 | (54.6) | 783 | (58.0) | 1.00 | ||
Lowest tertile | 225 | (12.8) | 175 | (13.0) | 0.95 | (0.73, | 1.24) |
Middle tertile | 308 | (17.6) | 204 | (15.1) | 1.16 | (0.93, | 1.45) |
Highest tertile | 262 | (15.0) | 187 | (13.9) | 1.13 | (0.88, | 1.45) |
p-trend | 0.27 | ||||||
Total | 1771 | (100.0) | 1360 | (100.0) |