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

Table 1 Comparison between the baseline visit and the second visit (mean and standard deviation) for the 1,004 ARIC participants in the repeatability study

Variables	Baseline Visit	Second Visit	p-values^#
Total energy intake (kcal/d)	1,651 (593)	1,547 (576)	<0.0001
Choline intake (mg/d)^†	319 (74)	270 (67)	<0.0001
Betaine intake (mg/d)^†	112 (42)	108 (39)	0.16
Folate intake* (μg/d)^†	230 (83)	223 (88)	0.13
Methionine intake* (mg/d)^†	1,706 (441)	1,591 (439)	<0.0001
Vitamin B₆ intake (mg/d)^†	1.71 (0.50)	1.69 (0.69)	0.50

ISSN: 1475-2891