Measurement error correction for nutritional exposures with correlated measurement error: Use of the method of triads in a longitudinal setting

• Published in: Statistics in medicine Vol. 27; no. 18; pp. 3466 - 3489
• Main Authors: Rosner, Bernard, Michels, Karin B., Chen, Ya-Hua, Day, Nicholas E.
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 15.08.2008; Wiley Subscription Services, Inc
• Subjects: Aged; Bias; biomarkers; correlated error; Correlation analysis; Diet; Diet Records; Estimates; Feeding Behavior; Female; Humans; longitudinal data; Longitudinal Studies; Male; measurement error; Measurement errors; Models, Statistical; Nutrition; Nutrition Assessment; Nutritional Status; Regression analysis; Surveys and Questionnaires; Vitamin C

Nutritional exposures are often measured with considerable error in commonly used surrogate instruments such as the food frequency questionnaire (FFQ) (denoted by Qi for the ith subject). The error can be both systematic and random. The diet record (DR) denoted by Ri for the ith subject is considere...