Table 4.
Rate Ratios (RR) and 95% confidence intervals (CI)a for colorectal cancer (CRC) by Lake Erie sport fish consumption, New York State Angler Cohort Study, 1991–2008
| CRC cases (n=32) |
Person-years | Unadjusted RR (95% CI) |
Adjustedb RR (95% CI) |
|
|---|---|---|---|---|
| Ever ate L. Erie fish | ||||
| No | 20 | 116,860 | 1.00 (referent) | 1.00 (referent) |
| Yes | 12 | 62,621 | 1.12 (0.55; 2.29) | 1.03 (0.50; 2.11) |
| Years of consumption | ||||
| Never | 20 | 116,860 | 1.00 (referent) | 1.00 (referent) |
| >7 | 5 | 35,652 | 0.82 (0.31; 2.18) | 0.82 (0.31; 2.18) |
| 8–14 | 3 | 10,797 | 1.62 (0.48; 5.46) | 1.46 (0.43; 4.95) |
| >15 | 4 | 16,171 | 1.45 (0.49; 4.23) | 1.13 (0.39; 3.30) |
| p-trend | 0.31 | 0.55 |
a
Rate ratios (RR) and 95% confidence intervals were estimated using Poisson regression models
b
Adjusted for age at baseline, sex, and pack-years of smoking