Table 2.

Absolute nutrient intakes measured by Flower-FFQ and regular-FFQ with corresponding cross-classification and correlations (n 401)

											Flower-FFQ v. regular-FFQ
	Flower-FFQ				Regular-FFQ				Group-level bias†		Cross-classification by quartiles			Pearson‡	Spearman‡
	Mean	se	M1	M2	Mean	se	M1*	M2*	%	95 % CI	Same (%)	Adjacent (%)	Extreme (%)	r	r
Energy, kJ/d	7953	104	93	94	8718	108	97	95	−8·77	−11·85, −5·70	50	39	2	0·68	0·68
Energy, kcal/d	1897	25	93	94	2080	26	97	95	−8·80	−10·31, −7·28	49	40	2	0·68	0·68
Total carbohydrates, en%	43	0·3	93	96	43	0·3	96	93	0·00	−0·13, 0·13	56	41	2	0·69	0·68
Total carbohydrates, g/d	204	2·9	93	96	222	3·0	96	93	−8·11	−8·65, −7·57	50	39	1	0·73	0·71
Mono/disaccharides, g/d	87	1·6	NC	NC	96	1·6	98	93	−9·38	−9·82, −8·93	50	40	2	0·65	0·67
Polysaccharides, g/d	118	1·8	NC	NC	125	2·0	94	89	−5·60	−6·06, −5·14	49	40	1	0·73	0·71
Fibres, g/d	23	0·3	NC	NC	25	0·3	97	99	−8·00	−8·16, −7·84	46	41	2	0·69	0·67
Total protein, en%	16	0·1	93	93	15	0·1	97	91	6·67	6·59, 6·74	44	40	2	0·54	0·57
Total protein, g/d	75	0·9	93	93	76	0·9	97	91	−1·32	−1·60, −1·03	44	44	3	0·62	0·63
Plant-based protein, g/d	32	0·5	93	96	35	0·5	96	91	−8·57	−8·80, −8·34	46	44	1	0·72	0·71
Animal protein, g/d	43	0·7	92	90	41	0·6	98	90	4·88	4·59, 5·16	47	40	4	0·58	0·61
Total fat, en%	35	0·3	94	95	36	0·3	97	93	−2·78	−2·92, −2·64	43	40	2	0·57	0·56
Total fat, g/d	74	1·3	94	95	83	1·3	97	93	−10·84	−11·23, −10·46	48	37	1	0·62	0·64
SFA, g/d	26	0·5	93	94	28	0·4	97	92	−7·14	−7·38, −6·91	50	37	2	0·63	0·65
MUFA, g/d	26	0·5	93	93	30	0·5	97	91	−13·33	−13·58, −13·09	45	41	2	0·58	0·61
PUFA, g/d	15	0·3	95	97	18	0·3	97	93	−16·67	−16·85, −16·48	45	42	3	0·54	0·59
EPA, g/d	0·12	0·01	NC	NC	0·09	0·00	99	84	33·33	33·27, 33·40	50	37	2	0·54	0·63
DHA, g/d	0·16	0·01	NC	NC	0·11	0·00	99	77	45·45	45·40, 45·51	51	35	1	0·56	0·65
Ethanol, en%	3·17	0·17	95	97	4·18	0·22	100	99	−24·16	−24·41, −23·92	63	31	2	0·78	0·78
Ethanol, g/d	8·4	0·45	95	97	12	0·70	100	99	−30·00	−30·42, −29·58	64	30	2	0·77	0·79
Retinol equivalents, µg/d	1127	27	97	100	1367	35	98	94	−17·56	−19·77, −15·35	42	36	4	0·52	0·47
Vitamin B2, mg/d	1·35	0·02	94	96	1·50	0·02	97	89	−10·00	−10·04, −9·96	46	39	2	0·54	0·62
Vitamin B6, mg/d	1·36	0·02	94	95	1·63	0·02	97	84	−16·56	−16·61, −16·52	42	38	4	0·43	0·46
Folic acid, µg/d	269	4·1	95	96	278	4·1	98	78	−3·24	−3·91, −2·56	47	38	4	0·49	0·58
Vitamin B12, µg/d	5·1	0·17	96	98	4·4	0·10	98	89	15·91	15·72, 16·10	43	40	3	0·41	0·56
Vitamin C, mg/d	101	2·1	95	98	89	1·8	97	62	13·48	12·89, 14·07	48	39	2	0·61	0·65
Vitamin E, mg/d	12	0·2	96	98	13	0·2	99	90	−7·69	−7·84, −7·54	39	43	3	0·45	0·51
Ca, mg/d	964	17·4	96	98	971	15·5	98	94	−0·72	−2·18, 0·74	48	38	3	0·53	0·62

NC, not calculated.

^*Based on Eussen (2019) paper.

^†% Group-level bias = (mean intake Flower-FFQ/mean intake regular-FFQ) × 100–100.

^‡All P < 0·0001. M1, covered nutrient intake; M2, covered variance in nutrient intake.