| Type of occupation | % of cases (n=50) | % of community controls (n=116) | Odds ratio (95% C.I.), p value (based on matched cases and controls) |
| Medical/paramedical/nursing/dentistry | 4 | 13 | 0.2 (0.0, 1.4); 0.1 |
| Animal laboratories | 0 | 1 | 0.0 (0.0, 39.0); 0.3 |
| Pharmaceutical laboratories | 0 | 3 | 0.0 (0.0, 8.8); 0.4 |
| Other research laboratories | 0 | 2 | 0.0 (0.0, 13.0); 0.4 |
| Animal farming/veterinary medicine | 6 | 7 | 1.0 (0.2, 4.2); 1.0 |
| Meat industry | 10 | 9 | 0.9 (0.3, 3.1); 0.9 |
| Catering industry | 30 | 29 | 1.0 (0.5, 2.0); 1.0 |
| Other involving animal products | 2 | 3 | 0.8 (0.1, 7.3); 0.8 |
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