Food groups associated with being a case, adjusted as in table 6
| Food | Portions/day | Odds ratio | 95% confidence intervals | p (test for linear trend) |
| Vegetables | >3 | 1.0 | ||
| 2–3 | 2.45 | 1.30 to 4.65 | ||
| <2 | 2.83 | 0.98 to 8.09 | 0.01 | |
| Milk | >3 | 1.0 | ||
| 2–3 | 1.51 | 0.70 to 3.26 | ||
| <2 | 2.40 | 1.21 to 4.75 | 0.04 |