Skip to main content

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

From: Repeatability and measurement error in the assessment of choline and betaine dietary intake: the Atherosclerosis Risk in Communities (ARIC) 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
  1. #p-values were calculated using a t-test
  2. Adjusted for total energy intake
  3. Some variables (marked with *) have fewer observations