TABLE 1.
Age-standardized baseline characteristics of 69622 women in the Nurses’ Health Study, according to quintiles of total flavonoid intake in 1990
| Quintiles (Q) of total flavonoid intake | |||||
|---|---|---|---|---|---|
| Q1 | Q2 | Q3 | Q4 | Q5 | |
| Total Flavonoids (mg/d) | 96.8 | 161.7 | 232.0 | 356.3 | 761.2 |
| Postmenopausal % | 70 | 69 | 69 | 70 | 69 |
| History of high cholesterol % | 36 | 38 | 37 | 38 | 37 |
| History of diabetes % | 4 | 4 | 4 | 4 | 5 |
| History of hypertension % | 30 | 29 | 29 | 30 | 30 |
| Current smoking, % | 27 | 17 | 13 | 12 | 14 |
| Current postmenopausal hormone use % | 26 | 29 | 30 | 30 | 28 |
| Alcohol g/d | 6.5 | 5.7 | 5.0 | 4.5 | 3.8 |
| Regular aspirin use (6+ tablets per week) | 10 | 10 | 10 | 10 | 10 |
| BMI kg/m2 | 26.0 | 25.7 | 25.6 | 25.5 | 25.6 |
| Multivitamin users % | 34 | 38 | 40 | 39 | 38 |
| Physical activity mets/wk | 13.1 | 15.8 | 16.7 | 17.4 | 15.2 |
| Energy intake (Kcal/d) | 1786 | 1812 | 1798 | 1747 | 1595 |
| Caffeine mg/d | 296 | 261 | 251 | 245 | 270 |
| Fiber g/d | 15.2 | 17.6 | 19.0 | 19.6 | 18.9 |
| Fruits and vegetables (portions/d) | 4.7 | 6.0 | 6.7 | 6.9 | 6.0 |
| Wholegrains g/d | 16.0 | 19.2 | 20.2 | 20.5 | 19.9 |
| Folate ug/d | 370 | 421 | 445 | 455 | 462 |
| Calcium mg/d | 941 | 990 | 1005 | 1000 | 978 |
| Sodium mg/d | 1896 | 1843 | 1821 | 1807 | 1837 |
| Potassium mg/d | 2612 | 2821 | 2934 | 2982 | 2990 |
| Magnesium mg/d | 281 | 302 | 310 | 312 | 309 |
| Omega 3 g/d | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 |
| Flavonols mg/d | 9.6 | 12.5 | 15.3 | 19.6 | 34.3 |
| Flavones mg/d | 1.0 | 1.7 | 2.0 | 2.1 | 2.0 |
| Flavonones mg/d | 18.9 | 35.5 | 44.3 | 48.4 | 44.9 |
| Flavan-3-ols mg/d | 8.6 | 15.1 | 25.1 | 51.9 | 175.0 |
| Anthocyanins mg/d | 5.8 | 10.3 | 13.6 | 16.6 | 16.5 |
| Polymers mg/d | 48.6 | 86.7 | 134 | 227 | 669 |
All variables are age-standardized; all nutrients are energy adjusted