Reliability of Repeated Measures of Nutrient Intake by Diet Records in Residents in the Western Region of Japan.

ABSTRACT: We aimed to assess the day-to-day variation in twelve one-day diet records over one year from 131 residents of urban and rural areas in the western region of Japan. Between 2014 and 2015, the participants provided repeated one-day diet records once a month. We estimated the intraclass correlation coefficient (ICCs) for intakes for energy and 39 crude and energy-adjusted nutrients using linear mixed models. Among the unadjusted nutrients, ICCs ranged from 0.05 (95 percent confidence interval = 0.03-0.09) for vitamin A retinol equivalent (RE) to 0.55 (95% CI = 0.48-0.62) for potassium. After energy adjustment, the ICCs were 0.02 (95 percent confidence interval = 0.03-0.09) for vitamin A (RE) and 0.52 (95 percent confidence interval = 0.45-0.59) for potassium. Intakes of energy-adjusted macro

SUBMITTER: Yoshizawa K 

PROVIDER: S-EPMC6835429 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature