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Table 1.

Usual daily intakes of total fat, saturated, mono-, and poly-unsaturated fatty acids, fibres, alcohol, caffeine, and theobromine calculated from the 7 d estimated diet records and the food-frequency questionnaire; differences and deattenuated correlation coefficients between the test and reference method (n 64).

	7d EDR		FFQ		P	FFQ-EDR		Correlation
	Mean	SD	Mean	SD	P	Mean	SD	r	P
Total fat (g/d)	73.2	24.7	53.1	21.2	0.001^μ	–18.5	19.0	0.60^‡	0.002
Saturated FA (g/d)	30.1	12.1	22.6	8.64	0.001^μ	–7.15	9.23	0.51^‡	0.008
Mono-unsaturated FA (g/d)	27.8	10.9	17.8	7.89	0.001^μ	–9.05	7.45	0.60^‡	0.002
Poly-unsaturated FA (g/d)	11.6	3.97	8.81	4.20	0.001^μ	–2.63	4.06	0.47^‡	0.030
Fibres (g/d)	22.0	5.85	18.3	5.85	0.001^μ	–4.86	5.42	0.57^‡	0.001
Alcohol (g/d)	9.90	11.0	9.07	13.5	0.012^†	–0.790	9.97	0.94^#	0.001
Caffeine (mg/d)	206	121	143	105	0.022^μ	–62.4	103	0.64^‡	0.001
Theobromine (mg/d)	48.1	63.3	31.9	41.1	0.001^†	–14.2	58.9	0.57^#	0.001

EDR, estimated diet record; FFQ, food-frequency questionnaire; FA, fatty acids;

^{^μ}

Paired Student’s t-test;

^{^†}

Wilcoxon’s matched-pairs signed-rank test;

^{^‡}

Pearson’s correlation coefficient deattenuated for within-individual variation;

^{^#}

Spearman’s correlation coefficient deattenuated for within-individual variation