Table 4.

Rank intraclass correlation coefficients comparing flavonoid intake from the first and second semiquantitative food frequency questionnaires in MLVS and WLVS

	SFFQHarvard		SFFQPE
	Unadjusted	Energy-adjusted1	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
Proanthocyanidins2	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

MLVS, Men’s Lifestyle Validation Study; SFFQ_Harvard, semiquantitative food frequency questionnaire derived using the Harvard database; SFFQ_PE, semiquantitative food frequency questionnaire derived using the Phenol-Explorer database; WLVS, Women’s Lifestyle Validation Study

^*Adjusted for total energy intake using the residual method.

^†Includes proanthocyanidin dimers and trimers.