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Interaction odds ratios for smoking and E-DII dichotomized at the median, Carolina Head and Neck Cancer (CHANCE) Study, 2001 to 2007.
| < E-DII Median
|
≥ E-DII median
|
E-DII OR (95% CI) within smoking strata | |||
|---|---|---|---|---|---|
| N, Cases/Controls | OR (95% CI) | N, Cases/Controls | OR (95% CI) | ||
|
|
|||||
| <10 pack-years | 83/409 | 1.00 | 187/229 | 2.23 (1.62, 3.09) | 2.23 (1.62, 3.09) |
| ≥10 pack-years | 169/301 | 3.17 (2.30, 4.39) | 723/334 | 6.25 (4.64, 8.4) | 1.97 (1.53, 2.55) |
| RERI: 2.83 (1.36, 4.30) | |||||
