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Dietary quality varies according to data collection instrument: a comparison between a food frequency questionnaire and 24-hour recall
Diet quality differs depending on how food intake is recorded: comparing food frequency questionnaires and 24-hour recalls
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Abstract
The mean concordance for the Brazilian Healthy Eating Index - Revised (BHEI-R) components ranged from 68% for integral cereals to 147% for whole fruits.
- The BHEI-R scores estimated by a food frequency questionnaire and multiple 24-hour recalls showed statistically significant differences.
- Poor concordance and correlation were indicated by the intraclass correlation coefficient and partial correlations.
- Most components of the BHEI-R violated suitable concordance limits.
- Concordance estimates suggest variability, with some components demonstrating better agreement than others.
- The findings highlight a discrepancy in dietary assessments based on different food consumption reporting methods.
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