Table II.
| Quintile | Case/control | Q1 | Case/control | Q2 | Case/control | Q3 | Case/control | Q4 | Case/control | Q5 | P-trend |
| Food group | |||||||||||
| Total fruit and vegetablec | |||||||||||
| All | 477/399 | 1.0 (ref) | 407/398 | 0.93 (0.73–1.2) | 335/399 | 0.86 (0.68–1.1) | 309/398 | 0.85 (0.66–1.1) | 294/397 | 0.70 (0.54–0.90) | 0.007 |
| Female | 97/90 | 1.0 (ref) | 91/90 | 1.1 (0.66–1.8) | 55/90 | 0.74 (0.43–1.3) | 67/90 | 0.89 (0.52–1.4) | 55/89 | 0.85 (0.49–1.5) | 0.38 |
| Male | 380/309 | 1.0 (ref) | 316/308 | 0.88 (0.67–1.1) | 280/309 | 0.89 (0.68–1.2) | 242/308 | 0.84 (0.63–1.1) | 239/308 | 0.67 (0.50–0.90) | 0.01 |
| Total fruitsd | |||||||||||
| All | 459/399 | 1.0 (ref) | 407/398 | 1.1 (0.87–1.4) | 385/399 | 1.1 (0.86–1.4) | 286/398 | 0.82 (0.63–1.0) | 281/397 | 0.79 (0.61–1.0) | 0.01 |
| Female | 98/90 | 1.0 (ref) | 82/90 | 1.1 (0.66–1.8) | 77/90 | 1.1 (0.66–1.9) | 54/90 | 0.84 (0.49–1.4) | 51/89 | 0.86 (0.50–1.5) | 0.38 |
| Male | 361/309 | 1.0 (ref) | 325/308 | 1.1 (0.84–1.4) | 308/309 | 1.1 (0.83–1.4) | 232/308 | 0.82 (0.62–1.1) | 230/308 | 0.76 (0.57–1.0) | 0.02 |
| Total vegetablese | |||||||||||
| All | 435/399 | 1.0 (ref) | 398/398 | 1.0 (0.82–1.3) | 347/399 | 0.87 (0.68–1.1) | 341/398 | 0.93 (0.73–1.2) | 301/397 | 0.76 (0.59–0.99) | 0.03 |
| Female | 95/90 | 1.0 (ref) | 78/90 | 0.89 (0.52–1.4) | 62/90 | 0.76 (0.45–1.3) | 65/90 | 0.74 (0.43–1.3) | 65/89 | 0.75 (0.44–1.3) | 0.24 |
| Male | 340/309 | 1.0 (ref) | 320/308 | 1.1 (0.84–1.4) | 285/309 | 0.92 (0.70–1.2) | 276/308 | 1.0 (0.78–1.4) | 236/38 | 0.78 (0.58–1.0) | 0.10 |
| Quercetin-rich foodsf,g | |||||||||||
| All | 496/399 | 1.0 (ref) | 408/398 | 0.89 (0.70–1.1) | 336/398 | 0.72 (0.56–0.93) | 297/398 | 0.68 (0.52–0.90) | 263/397 | 0.47 (0.35–0.64) | <0.001 |
| Female | 102/89 | 1.0 (ref) | 76/90 | 0.80 (0.47–1.4) | 64/90 | 0.81 (0.46–1.4) | 78/90 | 1.1 (0.60–2.0) | 42/89 | 0.53 (0.27–1.0) | 0.24 |
| Male | 394/309 | 1.0 (ref) | 332/308 | 0.91 (0.69–1.2) | 272/308 | 0.70 (0.52–0.94) | 219/308 | 0.59 (0.43–0.82) | 221/308 | 0.45 (0.32–0.63) | <0.001 |
All models adjusted for age, gender, area of residence, education, body mass index, alcohol consumption, total red meat intake (continuous), cigarette intensity in packs per day (continuous, 0 for non-smokers), duration of cigarettes smoking (continuous, 0 for non-smokers) and years since last cigarette smoked (former smokers only).
Quintiles of intake: sex specific, based on the distribution of controls.
Total fruits and vegetables: total vegetables + total fruits.
Total fruits: summary measure of apples, pears, bananas, kiwis, oranges/grapefruits, mandarins/clementines, grapes, peaches/clingstones, apricots, plums, strawberries, melons and fruit cocktails.
Total vegetables: summary measure of tomatoes, peppers, carrots, salad, peas, beans/chick peas, mushrooms, broccoli, turnips, savoy, black cabbage, onions, cooked spinach/Swiss chard/beets/rabes, cooked eggplants/zucchini/string beans, artichokes/fennel and beets.
Quercetin-rich foods: summary measure of apples, grapes, onions, artichoke/fennel/celery, beans, apricots, plums, turnips, peppers, strawberries, tomatoes and broccoli.
ORa additionally adjusted for non-quercetin-rich foods.