Table 2.

Measurement error structure for total sugar intake and total sugars density as assessed by FFQ and 24HDR by gender on log scale^*

	Gender	Variance of true Intake $({\mathrm{\sigma }}_T^2)$	Instrument	Slope in regression of reported on true intake (βQ1 or βR1)	Variance of person- specific bias $({\mathrm{\sigma }}_{u_Q}^2\text{or}{\mathrm{\sigma }}_{u_R}^2)$	Correlation of person- specific biases (ρuQ,uR)	Variance of within-person error $({\mathrm{\sigma }}_{{\epsilon }_Q}^2\text{or}{\mathrm{\sigma }}_{{\epsilon }_R}^2)$
Total sugars intake (g/day)	Male	0.12 (0.04†)	FFQ	0.66 (0.16)	0.17 (0.02)	0.81 (0.08)	0.06 (0.005)
			24HDR	0.82 (0.18)	0.08 (0.02)		0.16 (0.01)
	Female	0.25 (0.06)	FFQ	0.16 (0.06)	0.16 (0.02)	0.72 (0.09)	0.07 (0.01)
			24HDR	0.22 (0.08)	0.08 (0.02)		0.18 (0.02)
Total sugars density (g/1000 kcal)	Male	0.08 (0.03)	FFQ	0.65 (0.17)	0.08 (0.01)	0.82 (0.09)	0.03 (0.002)
			24HDR	0.82 (0.19)	0.05 (0.02)		0.12 (0.01)
	Female	0.22 (0.05)	FFQ	0.16 (0.06)	0.07 (0.01)	1.00 (0.08)	0.04 (0.003)
			24HDR	0.21 (0.07)	0.06 (0.01)		0.12 (0.01)

^*All the parameters were estimated using FFQ- and 24HDR-ME models adjusted for BMI and age, and biomarker ME model adjusted for age.

^†Standard error (all values in parenthesis).