Table 4.
Rank intraclass correlation coefficients comparing flavonoid intake from the first and second semi-quantitative FFQ in Men’s Lifestyle Validation Study and Women’s Lifestyle Validation Study
| SFFQHarvard | SFFQPE | |||
|---|---|---|---|---|
| Unadjusted | Energy-adjusted* | Unadjusted | Energy-adjusted* | |
| Men | ||||
| Total flavonoids | 0·81 | 0·78 | 0·82 | 0·80 |
| Flavonols | 0·75 | 0·72 | 0·71 | 0·69 |
| Flavan-3-ol monomers | 0·79 | 0·74 | 0·79 | 0·77 |
| Proanthocyanidins† | 0·77 | 0·75 | 0·82 | 0·80 |
| Flavanones | 0·81 | 0·79 | 0·81 | 0·79 |
| Flavones | 0·79 | 0·78 | 0·74 | 0·72 |
| Anthocyanins | 0·78 | 0·75 | 0·77 | 0·75 |
| Isoflavones | 0·68 | 0·66 | 0·78 | 0·75 |
| Women | ||||
| Total flavonoids | 0·77 | 0·71 | 0·78 | 0·75 |
| Flavonols | 0·70 | 0·67 | 0·71 | 0·70 |
| Flavan-3-ol monomers | 0·75 | 0·72 | 0·78 | 0·77 |
| Proanthocyanidins† | 0·74 | 0·71 | 0·78 | 0·74 |
| Flavanones | 0·73 | 0·69 | 0·80 | 0·75 |
| Flavones | 0·77 | 0·70 | 0·69 | 0·69 |
| Anthocyanins | 0·72 | 0·70 | 0·71 | 0·68 |
| Isoflavones | 0·67 | 0·66 | 0·73 | 0·75 |
SFFQHarvard, semi-quantitative FFQ derived using the Harvard database; SFFQPE, semi-quantitative FFQ derived using the Phenol-Explorer database.
*
Adjusted for total energy intake using the residual method.
†
Includes proanthocyanidin dimers and trimers.