Reproducibility, relative validity and calibration of a food frequency questionnaire for adults

Bibliographic Data

ID5165889
AuthorsNeuciani Ferreira Da Silva (Instituto de Saúde, corresponding author), Rosely Sichieri (0000-0001-5286-5354, Universidade do Estado do Rio de Janeiro), Rosangela Alves Pereira (0000-0002-9886-9796, Universidade Federal do Rio de Janeiro), Regina Maria Veras Gonçalves Da Silva (Universidade Federal de Mato Grosso, corresponding author), Márcia Gonçalves Ferreira (0000-0001-8362-0819, Universidade Federal de Mato Grosso, corresponding author)
Year2013
Volume29
Issue9
Pages1783-1794
Publication date2013-09-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueCadernos de Saude Publica (JOURNAL)
Journal identifiersISSN: 0102-311X • E-ISSN: 1678-4464
PublisherFapUNIFESP (SciELO) (PUBLISHER)
DOI10.1590/s0102-311x2013001300018
PMID24068224
OpenAlexW4236565735
SCIELO_PIDS0102-311X2013001300018
LanguageEN
Citations received10
References cited22

The purpose of the present study was to evaluate the reproducibility and relative validity and calibrate the dietary intake assessment of a food frequency questionnaire (FFQ) using a random sample of 195 adults aged 20 to 50 years from the Central-West Region of Brazil. The reference method used by the study was two 24-hour recalls (24hR) that provided energy-adjusted deattenuated food intake data for comparison purposes. With respect to reproducibility, the average weighted kappa was 0.43 and exact agreement was 41.5%. With regard to relative validity, correlation coefficients ranged from 0.32 (thiamin) to 0.51 (carbohydrates), with a mean of 0.41. Deattenuation and adjustment for energy intake decreased most correlation coefficients in relation to crude values. The food frequency questionnaire showed good reliability and moderate validity for most nutrients based on classification into quartiles of energy and nutrient intake. The calibrated means of the FFQ were more similar to the means estimated from the 24hR and showed lower standard deviation

Animal science · Biology · Calibration · Concurrent validity · Confidence interval · Environmental health · Food frequency questionnaire · Food intake · Kappa · Physics · Psychometrics · Quartile · Relative standard deviation · Reliability (semiconductor) · Reproducibility · Standard deviation · Statistics · Demography · Diet and metabolism studies · Internal Medicine · Mathematics · Medicine · Nutritional Studies and Diet · Obesity, Physical Activity, Diet

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