title: Dietary quality varies according to data collection instrument: a comparison between a food frequency questionnaire and 24-hour recall.
abstract: The objective of this study was to assess the agreement between the Brazilian Healthy Eating Index - Revised (BHEI-R), estimated by a food frequency questionnaire (FFQ) and multiple 24-hour recalls (24h-R). The Wilcoxon paired test, partial correlations (PC), intraclass correlation coefficient (ICC), and Bland-Altman method were used. The total BHEI-R scores and its components ("total fruits", "whole fruits", "total vegetables", "integral cereals", "saturated fat", "sodium", and "energy intake derived from solid fat, added sugar, and alcoholic beverages") were statistically different, with the ICC and PC indicating poor concordance and correlation. The mean concordance estimated for the total BHEI-R and its components varied from 68% for "integral cereals" to 147% for "whole fruits". The suitable concordance limits were violated for most of the components of the BHEI-R. Poor concordance was observed between the BHEI-R estimated by the FFQ and by multiple 24h-R, which indicated a strong reliability of the BHEI-R on the instrument used to collect information on food consumption.
authors.affiliation: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil.
authors.forename: Paulo Rogério Melo
authors.initials: PR
authors.lastname: Rodrigues
authors.affiliation: Instituto de Saúde Coletiva, Universidade Federal de Mato Grosso, Cuiabá, Brasil.
authors.forename: Rita Adriana Gomes
authors.initials: RA
authors.lastname: de Souza
authors.affiliation: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil.
authors.forename: Mara Lima
authors.initials: ML
authors.lastname: De Cnop
authors.affiliation: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil.
authors.forename: Luana Silva
authors.initials: LS
authors.lastname: Monteiro
authors.affiliation: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil.
authors.forename: Camila Pinheiro
authors.initials: CP
authors.lastname: Coura
authors.affiliation: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil.
authors.forename: Alessandra Page
authors.initials: AP
authors.lastname: Brito
authors.affiliation: Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil.
authors.forename: Rosangela Alves
authors.initials: RA
authors.lastname: Pereira
mesh_terms: D000293:Adolescent; D002648:Child; D004032:Diet / Q000592:standards*; D015930:Diet Records; D004034:Diet Surveys / Q000295:instrumentation / Q000379:methods*; D002149:Energy Intake; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall; D015203:Reproducibility of Results; D013997:Time Factors