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Nutrición Hospitalaria
versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611
Resumen
TAYYEM, Reema F; ALBATAINEH, Samah R; ALLEHDAN, Sabika y BADRAN, Eman. Relative validity and reproducibility of a food frequency questionnaire to evaluate food group intakes among Jordanian children and adolescents. Nutr. Hosp. [online]. 2021, vol.38, n.5, pp.1047-1057. Epub 24-Ene-2022. ISSN 1699-5198. https://dx.doi.org/10.20960/nh.03528.
Introduction:
studies of the impact of diet on the prevention and occurrence of diseases in all life stages require a reliable and valid dietary assessment tool for assessing dietary intake.
Objectives:
this study aimed to develop and evaluate the relative validity and reproducibility of a culturally sensitive quantitative food frequency questionnaire (FFQ) to assess food group intake among Jordanian children and adolescents.
Methods:
the validation study was carried out on 136 children and adolescents aged between 6 and 18 years who enrolled from selected public and private schools. Fifty of these children and adolescents participated in the reproducibility phase. Food group intake from a quantitative FFQ was compared with food group intake from 24-hour dietary recalls (24h-DRs). Four 24-HRs were collected weekly for one month.
Results:
intraclass correlation coefficients between the two FFQs ranged from 0.18 for nuts to 0.98 for tea. De-attenuated and energy-adjusted correlations ranged from 0.08 for nuts to 0.95 for vegetable oils. On average, 46.6 % and 43.6 % of participants were ranked by the FFQ-1 and the 24h-DRs into the same quartile based on their crude and energy-adjusted food group intake, respectively. Bland-Altman plots showed a satisfactory agreement between the two methods for milk and milk products and vegetables.
Conclusions:
the findings of this study suggested that the developed FFQ has excellent reproducibility and good relative validity for most food groups.
Palabras clave : Food questionnaire; Validity; Reproducibility; Food intake; Children; Adolescents.