Association between tertiles of fruit, vegetables, and fruit plus vegetable intake, and IP. Lowest and middle tertiles of intake are compared with the highest tertile
| Cases No (%) | Controls No (%) | Crude OR (95% CI) | Adjusted OR* | p Value for trend (95% CI) | |
|---|---|---|---|---|---|
| n, number; OR, odds ratio; CI, confidence interval. | |||||
| *Adjusted for obesity, smoking (pack-years), total energy intake. | |||||
| Fruit (g/day) | |||||
| 1, ⩽78 | 33 (45) | 40 (27) | 1.8 (0.9 to 3.6) | 1.6 (0.8 to 3.3) | 0.3 |
| 2, >78–176 | 16 (22) | 57 (39) | 0.6 (0.3 to 1.3) | 0.6 (0.3 to 1.3) | |
| 3, >176 (referent) | 24 (33) | 49 (34) | 1.0 | 1.0 | |
| Vegetables (g/day) | |||||
| 1, <64.6 | 25 (34) | 48 (33) | 1.2 (0.6 to 2.5) | 1.3 (0.6 to 2.7) | 0.5 |
| 2, 64.6–113.0 | 26 (36) | 47 (32) | 1.3 (0.6 to 2.6) | 1.2 (0.6 to 2.5) | |
| 3, >113.0 (referent) | 22 (30) | 51 (35) | 1.0 | 1.0 | |
| Fruit plus vegetables (g/day) | |||||
| 1, <167 | 33 (45) | 40 (27) | 2.0 (1.0 to 4.1) | 1.9 (1.0,4.0) | 0.08 |
| 2, 167–275 | 18 (25) | 55 (38) | 0.8 (0.4 to 1.6) | 0.8 (0.4 to 1.7) | |
| 3, >275 (referent) | 22 (30) | 51 (35) | 1.0 | 1.0 | |