Table 3 Odds ratios (ORs) and 95% confidence intervals (95%CIs) of colorectal cancer according to quartiles of fish intakes.
Q1 | Q2 | Q3 | Q4 | P trend | |
|---|---|---|---|---|---|
Freshwater fish | |||||
No. Cases/Controls | 416/296 | 296/298 | 264/298 | 213/297 | |
Crude OR (95%CI) | 1 | 0.71 (0.57–0.88) | 0.63 (0.50–0.79) | 0.51 (0.41–0.64) | <0.01 |
Adjusted OR (95%CI)a | 1 | 0.72 (0.57–0.91) | 0.59 (0.46–0.75) | 0.47 (0.36–0.60) | <0.01 |
Sea fish | |||||
No. Cases/Controls | 376/297 | 294/298 | 214/297 | 305/297 | |
Crude OR (95%CI) | 1 | 0.78 (0.62–0.97) | 0.57 (0.45–0.72) | 0.81 (0.65–1.01) | <0.01 |
Adjusted OR (95%CI)a | 1 | 0.77 (0.61–0.98) | 0.57 (0.44–0.73) | 0.79 (0.62–0.99) | <0.01 |
Dried/salted fish | |||||
No. Cases/Controls | 272/297 | 395/297 | 209/298 | 313/297 | |
Crude OR (95%CI) | 1 | 1.45 (1.16–1.82) | 0.77 (0.60–0.98) | 1.15 (0.92–1.45) | 0.56 |
Adjusted OR (95%CI)a | 1 | 1.29 (1.01–1.64) | 0.80 (0.61–1.03) | 1.15 (0.90–1.48) | 0.94 |
Shellfish | |||||
No. Cases/Controls | 355/297 | 210/298 | 303/297 | 321/297 | |
Crude OR (95%CI) | 1 | 0.59 (0.47–0.75) | 0.85 (0.68–1.07) | 0.90 (0.73–1.13) | 0.94 |
Adjusted OR (95%CI)a | 1 | 0.65 (0.51–0.84) | 0.89 (0.70–1.13) | 0.95 (0.75–1.21) | 0.84 |
Fresh fish | |||||
No. Cases/Controls | 418/296 | 257/298 | 284/299 | 230/296 | |
Crude OR (95%CI) | 1 | 0.61 (0.49–0.76) | 0.67 (0.54–0.84) | 0.55 (0.44–0.69) | <0.01 |
Adjusted OR (95%CI)a | 1 | 0.54 (0.43–0.69) | 0.62 (0.49–0.79) | 0.49 (0.38–0.62) | <0.01 |
