Repeatability and measurement error in the assessment of choline and betaine dietary intake: the Atherosclerosis Risk in Communities (ARIC) Study

Table 2 Components of reliability and measurement error expressed as ratios of between-person variance or covariance to total (co)variance for related dietary nutrients

	Choline	Total Energy Intake	Folate	Methionine
*Choline*	6,228 *0.50*	21,749	2,904	32,956
*Total Energy Intake*	0.44	145,397 *0.43*	15,079	131,704
*Folate*	0.48	0.47	5,504 *0.53*	15,587
*Methionine*	0.50	0.47	0.45	221,628 *0.48*

Note 1: The ratios of between person-variance to total variance are the reliability coefficients (presented in bold italic)
Note 2: The value presented in the upper-right half of the table are the values for the error variance (italic) and covariance error terms

ISSN: 1475-2891