Table 3.

Estimates of regression slopes (standard errors in parentheses) and partitions of the variance of self-reports^a for the time-varying and fixed-intake models without covariates

			Protein		Protein Density
Gender	Parameter	Study	Time-varying intake	Fixed-intake	Time-varying intake	Fixed-intake
Men	β R1	1	0.75 (0.14)	0.69 (0.11)	0.69 (0.12)	0.72 (0.11)
		2	0.24 (0.15)	0.32 (0.18)	0.32 (0.08)	0.36 (0.09)
		3	0.70 (0.07)	0.81 (0.08)	0.35 (0.05)	0.42 (0.05)
	β Q1	1	0.72 (0.16)	0.68 (0.15)	0.49 (0.09)	0.52 (0.09)
		2	0.39 (0.20)	0.40 (0.19)	0.30 (0.11)	0.27 (0.09)
		3	0.41 (0.12)	0.40 (0.11)	0.28 (0.07)	0.26 (0.06)
	${\sigma }_{\mathrm{uR}}^2∕{\beta }_{\mathrm{R}1}^2{\sigma }_{\mathrm{T}}^2$	1	1.5	1.9	0.7	0.6
		2	20.5	14.0	0.9	0.7
		3	0.8	0.4	1.7	1.1
	${\sigma }_{\epsilon \mathrm{R}}^2∕{\beta }_{\mathrm{R}1}^2{\sigma }_{\mathrm{T}}^2$	1	3.5	4.6	3.2	4.0
		2	43.5	30.0	13.0	11.9
		3	3.2	2.7	6.8	5.2
	$({\sigma }_{\mathrm{uQ}}^2+{\sigma }_{\epsilon \mathrm{Q}}^2)∕{\beta }_{\mathrm{Q}1}^2{\sigma }_{\mathrm{T}}^2$	1	7.0	7.8	3.6	3.5
		2	13.8	16.4	5.5	7.7
		3	11.6	12.6	6.9	8.1
Women	β R1	1	0.42 (0.12)	0.47 (0.13)	0.34 (0.10)	0.35 (0.11)
		2	0.53 (0.08)	0.60 (0.11)	0.32 (0.06)	0.46 (0.09)
		3	0.61 (0.07)	0.77 (0.08)	0.36 (0.05)	0.46 (0.06)
		4	0.91 (0.15)	1.12 (0.19)	0.43 (0.14)	0.78 (0.23)
		5	0.55 (0.07)	0.63 (0.08)	0.37 (0.06)	0.62 (0.12)
	β Q1	1	0.57 (0.17)	0.61 (0.18)	0.42 (0.11)	0.40 (0.10)
		2	0.12 (0.18)	0.10 (0.16)	0.56 (0.12)	0.46 (0.10)
		3	0.49 (0.13)	0.46 (0.12)	0.37 (0.08)	0.27 (0.06)
		4	0.73 (0.11)	0.83 (0.13)	0.51 (0.08)	0.68 (0.14)
		5	0.84 (0.13)	0.85 (0.14)	0.43 (0.08)	0.49 (0.11)
	${\sigma }_{\mathrm{uR}}^2∕{\beta }_{\mathrm{R}1}^2{\sigma }_{\mathrm{T}}^2$	1	3.1	3.3	2.4	2.7
		2	2.3	2.0	2.9	1.7
		3	1.4	0.6	1.7	0.6
		4	0.4	0.1	2.2	0.7
		5	1.5	1.2	2.0	0.9
	${\sigma }_{\epsilon \mathrm{R}}^2∕{\beta }_{\mathrm{R}1}^2{\sigma }_{\mathrm{T}}^2$	1	11.6	13.4	10.7	14.5
		2	5.9	5.8	9.7	6.7
		3	4.9	3.0	7.6	4.5
		4	1.5	1.8	7.2	4.2
		5	5.0	4.7	8.0	5.2
	$({\sigma }_{\mathrm{uQ}}^2+{\sigma }_{\epsilon \mathrm{Q}}^2)∕{\beta }_{\mathrm{Q}1}^2{\sigma }_{\mathrm{T}}^2$	1	9.0	10.8	4.1	6.6
		2	188.0	310.3	1.9	4.5
		3	10.0	10.7	3.8	7.0
		4	4.5	4.6	2.6	2.5
		5	4.8	5.3	3.4	4.4

^a${\sigma }_{\mathrm{uR}}^2∕{\beta }_{\mathrm{R}1}^2{\sigma }_{\mathrm{T}}^2$ = ratio of subject-specific variance to “true signal” variance in 24HR; ${\sigma }_{\epsilon \mathrm{R}}^2∕{\beta }_{\mathrm{R}1}^2{\sigma }_{\mathrm{T}}^2$ = ratio of within-person variance to “true signal” variance in 24HR; $({\sigma }_{\mathrm{uQ}}^2+{\sigma }_{\epsilon \mathrm{Q}}^2)∕{\beta }_{\mathrm{Q}1}^2{\sigma }_{\mathrm{T}}^2$ = ratio of subject-specific variance plus within-person variance to “true signal” variance in FFQ.