Bias in protein and potassium intake collected with 24-h recalls (EPIC-Soft) is rather comparable across European populations.

ABSTRACT:

Purpose

We investigated whether group-level bias of a 24-h recall estimate of protein and potassium intake, as compared to biomarkers, varied across European centers and whether this was influenced by characteristics of individuals or centers.

Methods

The combined data from EFCOVAL and EPIC studies included 14 centers from 9 countries (n = 1,841). Dietary data were collected using a computerized 24-h recall (EPIC-Soft). Nitrogen and potassium in 24-h urine collections were used as reference method. Multilevel linear regression analysis was performed, including individual-level (e.g., BMI) and center-level (e.g., food pattern index) variables.

Results

For protein intake, no between-center variation in bias was observed in men while it was 5.7% in women. For potassium i

SUBMITTER: Crispim SP 

PROVIDER: S-EPMC3496541 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature