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Relative validity of a semi-quantitative food-frequency questionnaire in an elderly Mediterranean population of Spain
Open accessAbstract
The aim of the present study was to assess reproducibility and relative validity of a self-administered FFQ used in the PREDIMED Study, a clinical trial for primary prevention of CVD by Mediterranean diet in a population at high cardiovascular risk. The FFQ was administered twice (FFQ1 and FFQ2) to explore reproducibility at 1 year. Four 3 d dietary records (DR) were used as reference to explore validity; participants therefore recorded their food intake over 12 d in the course of 1 year. The degree of misclassification in the FFQ was also evaluated by a contingency table of quintiles comparing the information from the FFQ2 and the DR. A total of 158 men and women (aged 55–80 years) were asked not to modify their dietary habits during the study period. Reproducibility for food groups, energy and nutrient intake, explored by the Pearson correlation coefficient ( r ) ranged 0·50–0·82, and the intraclass correlation coefficient (ICC) ranged from 0·63 to 0·90. The FFQ2 tended to report higher energy and nutrient intake than the DR. The validity indices of the FFQ in relation to the DR for food groups and energy and nutrient intake ranged ( r ) from 0·24 to 0·72, while the range of the ICC was between 0·40 and 0·84. With regard to food groups, 68–83 % of individuals were in the same or adjacent quintile in both methods, a figure which decreased to 55–75 % for energy and nutrient intake. We concluded that FFQ measurements had good reproducibility and a relative validity similar to those of FFQ used in other prospective studies.
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“A validated 143-item food frequency questionnaire (FFQ) from the PREDIMED study, adapted for the Spanish population [22], was used to collect data on the participants’ habitual dietary patterns over the previous year.”
From Efficacy of Power Training on Sarcopenic Obesity in Community-Dwelling Older Women: A 32-Week Randomized Clinical Trial (2025) · cites this paper as [22]
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“At baseline and at each annual visit we administered 1 ) a short-questionnaire about lifestyle variables, medical conditions, and medication use, 2 ) a 14-item questionnaire of adherence to the MedDiet ( 12 ), 3 ) a 137-item validated food frequency questionnaire ( 13 ), and 4 ) the validated Spanish version of the Minnesota Leisure-Time Physical Activity questionnaire ( 14 ).”
From Reduction in the Incidence of Type 2 Diabetes With the Mediterranean Diet (2011) · cites this paper as [13]
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“Fiber intake was calculated using the Spanish food composition tables and through a validated food frequency questionnaire [29].”
From Intestinal Microbiota Is Influenced by Gender and Body Mass Index (2016) · cites this paper as [29]
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“A previously modified, adapted and validated food frequency questionnaire (FFQ) with the portion sizes and food groups usually consumed by the Spanish child population was used [30].”
From Dietary Patterns, Eating Behavior, and Nutrient Intakes of Spanish Preschool Children with Autism Spectrum Disorders (2021) · cites this paper as [30]
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RETRACTED: Primary Prevention of Cardiovascular Disease with a Mediterranean Diet
Estruch, R., Ros, E., Salas-Salvadó, J., Covas, M.-I., Corella, D., Arós, F., Gómez-Gracia, E., Ruiz-Gutiérrez, V., Fiol, M., Lapetra, J., et al. (2013) · New England Journal of Medicine · doi:10.1056/nejmoa1200303 · Cited by 4,257
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Self-citationMartínez-González, M. A., García-Arellano, A., Toledo, E., Salas-Salvadó, J., Buil-Cosiales, P., Corella, D., Covas, M. I., Schröder, H., Arós, F., Gómez-Gracia, E., et al. (2012) · PLoS ONE · doi:10.1371/journal.pone.0043134 · Cited by 1,150
Self-citationReduction in the Incidence of Type 2 Diabetes With the Mediterranean Diet
Salas-Salvadó, J., Bulló, M., Babio, N., Martínez-González, M. Á., Ibarrola-Jurado, N., Basora, J., Estruch, R., Covas, M. I., Corella, D., Arós, F., et al. (2011) · Diabetes Care · doi:10.2337/dc10-1288 · Cited by 901
“At baseline and each annual visit we administered: a) a short-questionnaire about lifestyle variables, medical conditions and medication use; b) a 14-item questionnaire of adherence to the MedDiet (12); c) a 137-item validated food frequency questionnaire (13); and, d) the validated Spanish version of the Minnesota Le…”
MethodSelf-citation
Metadata
- Authors
- Fernández-Ballart, J. D., Piñol, J. L., Zazpe, I., Corella, D., Carrasco, P., Toledo, E., Perez-Bauer, M., Martínez-González, M. Á., Salas-Salvadó, J., & Martín-Moreno, J. M.
- Affiliations
- Institut Català de la Salut (ES)
- Universitat de València (ES)
- Universidad de Navarra (ES)
- Venue
- British Journal of Nutrition
- Publisher
- Cambridge University Press (CUP)
- Published
- 2010-01-27
- Volume
- 103
- Issue
- 12
- Pages
- 1808-1816
- ISSN
- 0007-1145 (ISSN-L)
- 1475-2662
- OpenAlex
- W2140405768
- Cited by
- 898
- References
- 38
- Citations by year
- 2026: 46 · 2025: 57 · 2024: 93 · 2023: 57 · 2022: 75 · 2021: 103 · 2020: 81 · 2019: 74 · 2018: 57 · 2017: 44 · 2016: 40 · 2015: 30 · 2014: 49 · 2013: 34 · 2012: 27
- FWCI
- 29.27
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- British Journal Of Nutrition (publishedVersion)
- PubMed (publishedVersion)
- Rovira & Virgili repository (submittedVersion, cc-by)
- Deposito Adademico Digital Universidad De Navarra (University of Navarra) (submittedVersion, other-oa)
- Funders
- Instituto de Salud Carlos III (RD06/0045)
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
- Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Epidemiology
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
- Keywords
- food frequency questionnaire, relative validity, reproducibility, dietary assessment, Mediterranean diet, PREDIMED study, older adults, dietary records, energy intake, nutrient intake, food groups, cardiovascular risk
- MeSH terms
- Aged, Diet, Diet Surveys, Female, Humans, Male, Middle Aged, Surveys and Questionnaires, Spain, Reproducibility of Results, Multicenter Studies as Topic, Diet Records, Randomized Controlled Trials as Topic, Diet, Mediterranean
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