Table 2.
Odds ratios of prostate cancer associated with deep-fried foods, King County, Washington, 1993–1996 and 2002–2005
| Food item | Cases (n=1,549) | Controls (n=1,492) | Age-adjusted model | Fully adjusted model1 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | % | n | % | OR | (95% CI) | P (trend) | OR | (95% CI) | P (trend) | |
| French fries | ||||||||||
| < 1 per month | 285 | (18.4) | 319 | (21.4) | 1.00 | (referent) | 0.01 | 1.00 | (referent) | 0.004 |
| 1–3 times per month | 676 | (43.6) | 658 | (44.1) | 1.17 | (0.96–1.42) | 1.20 | (0.98–1.47) | ||
| ≥ 1 per week | 578 | (37.3) | 510 | (34.2) | 1.31 | (1.07–1.60) | 1.37 | (1.11–1.69) | ||
| missing | 10 | (0.7) | 5 | (0.3) | ||||||
| Fried chicken | ||||||||||
| < 1 per month | 575 | (37.1) | 565 | (37.9) | 1.00 | (referent) | 0.08 | 1.00 | (referent) | 0.05 |
| 1–3 times per month | 658 | (42.5) | 679 | (45.5) | 0.96 | (0.82–1.12) | 1.00 | (0.85–1.18) | ||
| ≥ 1 per week | 305 | (19.7) | 238 | (16.0) | 1.27 | (1.03–1.56) | 1.30 | (1.04–1.62) | ||
| missing | 11 | (0.7) | 10 | (0.7) | ||||||
| Fried fish | ||||||||||
| < 1 per month | 621 | (40.1) | 604 | (40.5) | 1.00 | (referent) | 0.12 | 1.00 | (referent) | 0.07 |
| 1–3 times per month | 661 | (42.7) | 678 | (45.4) | 0.96 | (0.82–1.11) | 0.97 | (0.83–1.14) | ||
| ≥ 1 per week | 257 | (16.6) | 197 | (13.2) | 1.27 | (1.02–1.58) | 1.32 | (1.05–1.66) | ||
| missing | 10 | (0.7) | 13 | (0.9) | ||||||
| Doughnuts | ||||||||||
| < 1 per month | 654 | (42.2) | 675 | (45.2) | 1.00 | (referent) | 0.004 | 1.00 | (referent) | 0.01 |
| 1–3 times per month | 541 | (34.9) | 536 | (35.9) | 1.06 | (0.90–1.24) | 1.08 | (0.91–1.27) | ||
| ≥ 1 per week | 350 | (22.6) | 273 | (18.3) | 1.35 | (1.11–1.64) | 1.35 | (1.11–1.66) | ||
| missing | 4 | (0.3) | 8 | (0.5) | ||||||
| Snack chips | ||||||||||
| < 1 per month | 360 | (23.2) | 328 | (22.0) | 1.00 | (referent) | 0.61 | 1.00 | (referent) | 0.31 |
| 1–3 times per month | 581 | (37.5) | 601 | (40.3) | 0.90 | (0.74–1.09) | 0.92 | (0.76–1.12) | ||
| ≥ 1 per week | 600 | (38.7) | 553 | (37.1) | 1.02 | (0.85–1.24) | 1.08 | (0.89–1.32) | ||
| missing | 8 | (0.5) | 10 | (0.7) | ||||||
1
Adjusted for age, race, family history of prostate cancer, body mass index, PSA/DRE tests in previous 5 years, and education.