Table 3 Associations between the risk of head and neck cancer and materials handled, tasks performed, and glues used. Results from the specific questionnaire on leather work
Cases (n = 1926) | Controls (n = 3481) | ORa (95% CI) | |||
|---|---|---|---|---|---|
n | % | n | % | ||
Held at least one job exposed to leather dust and filled out at least one specific questionnaire | |||||
No b | 1902 | 98.8 | 3450 | 99.1 | reference |
Yes | 24 | 1.2 | 31 | 0.9 | 1.15 (0.57, 2.31) |
Materials handled | |||||
Exposure to soft leather | |||||
Never | 2 | 0.1 | 5 | 0.1 | 0.95 (0.16, 5.63) |
Ever | 19 | 0.9 | 24 | 0.6 | 1.33 (0.61, 2.92) |
Exposure to thick leather | |||||
Never | 7 | 0.3 | 9 | 0.2 | 1.86 (0.55, 6.25) |
Ever | 14 | 0.7 | 21 | 0.6 | 0.86 (0.36, 2.06) |
Exposure to crepe rubber | |||||
Never | 9 | 0.4 | 21 | 0.6 | 0.77 (0.28, 2.05) |
Ever | 10 | 0.5 | 7 | 0.2 | 1.93 (0.57, 6.54) |
Exposure to synthetic leather | |||||
Never | 12 | 0.6 | 14 | 0.4 | 1.14 (0.41, 3.14) |
Ever | 10 | 0.5 | 15 | 0.4 | 1.44 (0.53, 3.86) |
Exposure to textile materials | |||||
Never | 17 | 0.8 | 18 | 0.5 | 1.69 (0.70, 4.03) |
Ever | 6 | 0.3 | 11 | 0.3 | 0.75 (0.21, 2.56) |
Exposure to other materials c | |||||
Never | 15 | 0.7 | 25 | 0.7 | 0.88 (0.39, 2.01) |
Ever | 7 | 0.3 | 1 | < 0.1 | 18.75 (1.77, 197.89) |
Tasks performed | |||||
Cutting of leather | |||||
Never | 5 | 0.2 | 9 | 0.2 | 1.08 (0.25, 4.51) |
Ever | 18 | 0.9 | 21 | 0.6 | 1.17 (0.52, 2.63) |
Cutting of other materials | |||||
Never | 10 | 0.5 | 14 | 0.4 | 1.61 (0.53, 4.88) |
Ever | 12 | 0.6 | 16 | 0.4 | 1.03 (0.41, 2.57) |
Scouring, roughing, grinding, trimming, buffing of leather | |||||
Never | 9 | 0.4 | 15 | 0.4 | 1.14 (0.39, 3.30) |
Ever | 13 | 0.6 | 14 | 0.4 | 1.49 (0.56, 3.92) |
Gluing | |||||
Never | 6 | 0.3 | 8 | 0.2 | 2.88 (0.74, 11.2) |
Ever | 18 | 0.9 | 22 | 0.6 | 1.02 (0.47, 2.23) |
Sewing | |||||
Never | 7 | 0.3 | 8 | 0.2 | 0.80 (0.22, 2.85) |
Ever | 17 | 0.8 | 23 | 0.6 | 1.34 (0.59, 3.05) |
Dyeing | |||||
Never | 14 | 0.7 | 24 | 0.6 | 0.81 (0.34, 1.91) |
Ever | 9 | 0.4 | 6 | 0.1 | 3.22 (0.77, 13.32) |
Injection of plastic materials | |||||
Never | 19 | 0.9 | 26 | 0.7 | 1.39 (0.64, 3.02) |
Ever | 3 | 0.1 | 3 | < 0.1 | 0.84 (0.12, 5.95) |
Other tasks d | |||||
Never | 19 | 24 | 1.17 (0.54, 2.51) | ||
Ever | 2 | 0.1 | 2 | 0.1 | 8.08 (0.66, 98.21) |
Glues used | |||||
Neoprene glues | |||||
Never | 6 | 0.3 | 7 | 0.2 | 0.55 (0.14, 2.05) |
Ever | 18 | 0.9 | 24 | 0.6 | 1.52 (0.68, 3.39) |
Solvent-based / rubber-based adhesives | |||||
Never | 6 | 0.3 | 7 | 0.2 | 1.03 (0.27, 3.92) |
Ever | 18 | 0.9 | 24 | 0.6 | 1.20 (0.53, 2.71) |
Strong glues/animal skin glues | |||||
Never | 6 | 0.3 | 10 | 0.2 | 0.54 (0.15, 1.94) |
Ever | 18 | 0.9 | 21 | 0.6 | 1.60 (0.70, 3.65) |
Polyurethane glues | |||||
Never | 10 | 0.5 | 7 | 0.2 | 1.87 (0.54, 6.49) |
Ever | 14 | 0.7 | 24 | 0.6 | 0.92 (0.39, 2.16) |
Other glues | |||||
Never | 6 | 0.3 | 9 | 0.2 | 0.99 (0.28, 3.43) |
Ever | 17 | 0.8 | 22 | 0.6 | 1.21 (0.52, 2.82) |