Larynx | Hypopharynx | ||||||
---|---|---|---|---|---|---|---|
Cases/ controls | Adjusted OR | 95% CI | Cases/ controls | Adjusted OR | 95% CI | ||
Leather dust: | |||||||
Never exposed | 288/288 | 1.00 | — | 198/288 | 1.00 | — | |
Ever exposed | 8/8 | 0.89 | 0.62 to 1.27 | 3/8 | 0.80 | 0.16 to 4.07 | |
Wood dust3-150: | |||||||
Never exposed | 249/260 | 1.00 | — | 168/260 | 1.00 | — | |
Ever exposed | 47/36 | 1.00 | 0.58 to 1.72 | 33/36 | 0.89 | 0.47 to 1.68 | |
Probability of exposure (%): | |||||||
⩽70 | 20/18 | 0.92 | 0.44 to 1.95 | 11/18 | 0.69 | 0.28 to 1.76 | |
>70 | 27/18 | 1.08 | 0.53 to 2.21 | 22/18 | 1.06 | 0.48 to 2.31 | |
Duration of exposure (y): | |||||||
<6 | 21/12 | 1.41 | 0.62 to 3.20 | 10/12 | 0.53 | 0.19 to 1.51 | |
6–10 | 7/11 | 0.49 | 0.17 to 1.48 | 10/11 | 1.00 | 0.34 to 2.91 | |
>10 | 19/13 | 1.03 | 0.46 to 2.30 | 13/13 | 1.19 | 0.48 to 2.95 | |
Cumulative level: | |||||||
Low (<10) | 20/14 | 0.97 | 0.44 to 2.14 | 10/14 | 0.56 | 0.20 to 1.56 | |
Medium (10–42) | 15/13 | 1.16 | 0.49 to 2.75 | 8/13 | 0.74 | 0.25 to 2.25 | |
High (>42) | 12/9 | 0.86 | 0.33 to 2.28 | 15/9 | 1.52 | 0.59 to 3.94 | |
Formaldehyde3-151: | |||||||
Never exposed | 194/211 | 1.00 | — | 118/211 | 1.00 | — | |
Ever exposed | 102/85 | 1.14 | 0.76 to 1.70 | 83/85 | 1.35 | 0.86 to 2.14 | |
Probability of exposure (%): | |||||||
<10 | 58/50 | 1.16 | 0.73 to 1.86 | 42/50 | 1.08 | 0.62 to 1.88 | |
10–50 | 23/20 | 1.12 | 0.55 to 2.30 | 15/20 | 1.01 | 0.44 to 2.31 | |
>50 | 21/15 | 1.04 | 0.44 to 2.47 | 26/15 | 3.78 | 1.50 to 9.49 | |
Duration of exposure (y): | |||||||
<7 | 35/22 | 1.42 | 0.75 to 2.68 | 18/22 | 1.09 | 0.50 to 2.38 | |
7–20 | 37/31 | 1.09 | 0.62 to 1.96 | 37/31 | 1.39 | 0.74 to 2.62 | |
>20 | 30/32 | 0.96 | 0.52 to 1.76 | 28/32 | 1.51 | 0.78 to 2.92 | |
Cumulative level: | |||||||
Low (<0.02) | 35/29 | 1.12 | 0.62 to 2.01 | 23/29 | 1.03 | 0.51 to 2.07 | |
Medium (0.02–0.09) | 38/26 | 1.44 | 0.79 to 2.63 | 32/26 | 1.57 | 0.81 to 3.06 | |
High (>0.09) | 29/30 | 0.87 | 0.45 to 1.67 | 28/30 | 1.51 | 0.74 to 3.10 | |
Flour dust3-152: | |||||||
Never exposed | 274/282 | 1.00 | — | 180/282 | 1.00 | — | |
Ever exposed | 22/14 | 1.52 | 0.69 to 3.34 | 21/14 | 1.92 | 0.82 to 4.50 | |
Probability of exposure (%): | |||||||
⩽90 | 5/1 | 8.00 | 0.84 to 75.8 | 5/1 | 22.1 | 2.15 to 226 | |
>90 | 17/13 | 1.11 | 0.47 to 2.60 | 16/13 | 1.16 | 0.46 to 2.91 | |
Duration of exposure (y): | |||||||
⩽3 | 9/6 | 2.22 | 0.70 to 7.08 | 8/6 | 2.61 | 0.76 to 9.01 | |
>3 | 13/8 | 1.15 | 0.43 to 1.28 | 13/8 | 1.53 | 0.53 to 4.44 | |
Cumulative level: | |||||||
Low (<20) | 10/8 | 1.45 | 0.50 to 4.22 | 13/8 | 2.25 | 0.78 to 6.53 | |
High (>20) | 12/6 | 1.59 | 0.54 to 4.70 | 8/6 | 1.51 | 0.42 to 5.38 | |
Textile dust3-153: | |||||||
Never exposed | 272/275 | 1.00 | — | 182/275 | 1.00 | — | |
Ever exposed | 24/21 | 1.22 | 0.61 to 2.43 | 19/21 | 1.63 | 0.74 to 3.60 | |
Probability of exposure (%): | |||||||
⩽90 | 8/10 | 0.98 | 0.33 to 2.85 | 10/10 | 2.13 | 0.74 to 6.14 | |
>90 | 16/11 | 1.41 | 0.58 to 3.44 | 9/11 | 1.21 | 0.39 to 3.72 | |
Duration of exposure (y): | |||||||
<7 | 15/7 | 2.07 | 0.75 to 5.74 | 11/7 | 2.20 | 0.70 to 6.91 | |
⩾7 | 9/14 | 0.74 | 0.28 to 1.95 | 8/14 | 1.26 | 0.43 to 3.65 | |
Cumulative level: | |||||||
Low (⩽0.3) | 11/13 | 1.09 | 0.43 to 2.77 | 10/13 | 1.98 | 0.73 to 5.37 | |
High (>0.3) | 13/8 | 1.37 | 0.50 to 3.81 | 9/8 | 1.24 | 0.38 to 4.05 | |
Coal dust3-154: | |||||||
Never exposed | 254/270 | 1.00 | — | 163/270 | 1.00 | — | |
Ever exposed | 42/26 | 1.67 | 0.92 to 3.02 | 38/26 | 2.31 | 1.21 to 4.40 | |
Probability of exposure (%): | |||||||
⩽90 | 22/13 | 1.62 | 0.75 to 3.46 | 19/13 | 1.83 | 0.80 to 4.17 | |
>90 | 20/13 | 1.75 | 0.75 to 4.08 | 19/13 | 3.12 | 1.22 to 8.01 | |
Duration of exposure (y): | |||||||
<6 | 15/7 | 2.12 | 0.79 to 5.65 | 12/7 | 2.39 | 0.81 to 6.99 | |
6–20 | 10/7 | 1.44 | 0.48 to 4.31 | 15/7 | 2.18 | 0.75 to 6.32 | |
>20 | 17/12 | 1.52 | 0.64 to 3.58 | 11/12 | 2.37 | 0.86 to 6.52 | |
Cumulative level: | |||||||
Low (<0.25) | 14/9 | 1.70 | 0.68 to 4.25 | 13/9 | 1.58 | 0.58 to 4.31 | |
Medium (0.25–25) | 13/8 | 1.54 | 0.27 to 4.15 | 11/8 | 2.28 | 0.80 to 6.50 | |
High (>25) | 15/9 | 1.78 | 0.66 to 4.78 | 14/9 | 3.73 | 1.23 to 11.3 | |
Silica dust3-160: | |||||||
Never exposed | 173/181 | 1.00 | — | 113/181 | 1.00 | — | |
Ever exposed | 123/115 | 0.96 | 0.65 to 1.40 | 88/115 | 0.81 | 0.50 to 1.31 | |
Probability of exposure (%): | |||||||
<10 | 56/64 | 0.87 | 0.55 to 1.38 | 44/64 | 0.93 | 0.53 to 1.62 | |
10–90 | 29/24 | 0.97 | 0.51 to 1.87 | 16/24 | 0.45 | 0.20 to 1.01 | |
>90 | 38/27 | 1.23 | 0.62 to 2.44 | 28/27 | 0.98 | 0.43 to 2.20 | |
Duration of exposure (y): | |||||||
<7 | 29/32 | 0.70 | 0.38 to 1.30 | 24/32 | 0.76 | 0.37 to 1.56 | |
7–20 | 35/24 | 1.46 | 0.78 to 2.74 | 24/24 | 0.97 | 0.45 to 2.06 | |
21–36 | 29/30 | 0.74 | 0.39 to 1.40 | 21/30 | 0.65 | 0.30 to 1.40 | |
>36 | 30/29 | 1.07 | 0.57 to 1.99 | 19/29 | 0.87 | 0.41 to 1.87 | |
Cumulative level: | |||||||
Very low (<0.004) | 22/29 | 0.71 | 0.37 to 1.36 | 26/29 | 1.11 | 0.55 to 2.23 | |
Low (0.004–0.011) | 31/30 | 0.97 | 0.53 to 1.78 | 21/30 | 0.88 | 0.42 to 1.84 | |
Medium (0.012–0.100) | 38/32 | 1.18 | 0.67 to 2.08 | 18/32 | 0.54 | 0.25 to 1.14 | |
High (>0.100) | 32/24 | 0.95 | 0.45 to 2.01 | 23/24 | 0.73 | 0.31 to 1.76 |
ORs adjusted for age, smoking, and alcohol (see text).
↵3-150 Also adjusted for exposure to formaldehyde (yes/no) and mineral fibres (yes/no) for the larynx, and for exposure to formaldehyde (yes/no) , mineral fibres (yes/no) and asbestos (yes/no) for the hypopharynx.
↵3-151 Also adjusted for exposure to coal dust (yes/no) for the larynx, and for exposure to coal dust (yes/no) and asbestos (yes/no) for the hypopharynx.
↵3-152 Also adjusted for exposure to formaldehyde (yes/no) for the larynx and hypopharynx.
↵3-153 Also adjusted for exposure to formaldehyde (yes/no) and asbestos (yes/no) for the hypopharynx only.
↵3-154 Also adjusted for exposure to formaldehyde (yes/no) for the larynx and hypopharynx.
↵3-160 Also adjusted for exposure to coal dust (yes/no) for the larynx, and for exposure to coal dust (yes/no), asbestos (yes/no), and education level (only primary school or more) for the hypopharynx.