Table 3 Odds ratios (ORs) and 95% confidence intervals (CIs) for cumulative exposure to mononuclear aromatic hydrocarbons, benzene, toluene and xylene and risk of bladder cancer.
From: Occupational exposure to organic solvents and risk of bladder cancer
No lag | Lagged 20-Years | |||||
|---|---|---|---|---|---|---|
Cases | Controls | ORsa (95%CI) | Cases | Controls | ORsa (95%CI) | |
Mononuclear aromatic hydrocarbons | ||||||
None | 36 | 74 | Ref | 69 | 124 | Ref |
Q1 | 89 | 93 | 1.83 (1.08, 3.12) | 92 | 94 | 1.64 (1.04, 2.58) |
Q2 | 89 | 92 | 1.78 (1.05, 3.03) | 89 | 87 | 1.80 (1.14, 2.85) |
Q3 | 107 | 92 | 2.17 (1.28, 3.67) | 97 | 91 | 1.86 (1.18, 2.93) |
Q4 | 83 | 92 | 1.60 (0.94, 2.72) | 60 | 65 | 1.57 (0.95, 2.60) |
p-trend | 0.88 | 0.48 | ||||
Benzene | ||||||
None | 115 | 189 | Ref | 152 | 239 | Ref |
Q1 | 39 | 35 | 1.72 (0.99, 2.99) | 35 | 30 | 1.71 (0.97, 3.02) |
Q2 | 33 | 37 | 1.44 (0.83, 2.51) | 24 | 32 | 1.28 (0.70, 2.33) |
Q3 | 43 | 33 | 1.99 (1.15, 3.43) | 44 | 33 | 2.07 (1.22, 3.53) |
Q4 | 31 | 34 | 1.40 (0.79, 2.48) | 26 | 28 | 1.38 (0.75, 2.54) |
p-trend | 0.25 | 0.14 | ||||
Toluene | ||||||
None | 86 | 139 | Ref | 133 | 220 | Ref |
Q1 | 16 | 24 | 0.98 (0.47, 2.05) | 18 | 28 | 0.97 (0.49, 1.90) |
Q2 | 32 | 24 | 2.35 (1.24, 4.45) | 36 | 22 | 2.91 (1.57, 5.39) |
Q3 | 27 | 24 | 1.51 (0.79, 2.90) | 23 | 24 | 1.47 (0.77, 2.81) |
Q4 | 26 | 24 | 1.62 (0.84, 3.13) | 16 | 17 | 1.45 (0.67, 3.12) |
p-trend | 0.15 | 0.25 | ||||
Xylene | ||||||
None | 128 | 220 | Ref | 169 | 280 | Ref |
Q1 | 17 | 22 | 1.21 (0.59, 2.50) | 19 | 21 | 1.36 (0.68, 2.74) |
Q2 | 32 | 22 | 2.40 (1.28, 4.50) | 35 | 24 | 2.37 (1.30, 4.31) |
Q3 | 19 | 22 | 1.43 (0.72, 2.86) | 15 | 22 | 1.07 (0.52, 2.20) |
Q4 | 26 | 21 | 1.65 (0.86, 3.18) | 17 | 14 | 1.63 (0.75, 3.58) |
p-trend | 0.11 | 0.18 | ||||
