Table 3.
Incidence rates per 1,000 person-years of Chronic Inflammatory Diseases
| N | No. of cases | IR | 95% CI | |
|---|---|---|---|---|
| Dietary fibre - tertiles of g/day | ||||
| Lowest | 18,791 | 610 | 1.66 | 1.53-1.80 |
| Middle | 18,710 | 591 | 1.57 | 1.44-1.70 |
| Highest | 18,574 | 557 | 1.47 | 1.35-1.60 |
| Meat - tertiles of g/day | ||||
| Lowest | 18,716 | 596 | 1.58 | 1.45-1.71 |
| Middle | 18,686 | 583 | 1.56 | 1.43-1.69 |
| Highest | 18,673 | 579 | 1.56 | 1.44-1.69 |
| Combined exposure - combinations of tertiles of meat and fibre intake* | ||||
| Low risk group a | 23,572 | 728 | 1.51 | 1.40-1.62 |
| Medium risk group Ab | 13,712 | 420 | 1.53 | 1.39-1.68 |
| Medium risk group Bc | 13,830 | 451 | 1.66 | 1.52-1.83 |
| High risk group d | 4,961 | 159 | 1.65 | 1.41-1.93 |
* Combined exposure: a, low/medium intake of meat and medium/high intake of fibres; b, high intake of meat and medium/high intake of fibres; c, low/medium intake of meat and low intake of fibres; d high intake of meat and low intake of fibres.