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Traditional and adjusted standardized mortality ratios for bladder cancer. Men employed at Oak Ridge National Laboratory. Oak Ridge, Tennessee, 1943–2008.
| Blue collar (hourly-paid) | White collar (monthly-paid) | |
|---|---|---|
| Traditional SMR (95%CI) |
1.90 (1.27, 2.72) |
0.96 (0.67, 1.33) |
| Adjusted SMR† (95%CI) |
2.22 (1.52, 3.24) |
1.99 (1.43, 2.76) |
Indirect adjustment using ischemic heart disease as negative control
