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Relative validity of a computerized 24h-recall used to assess dietary intake in adolescents from the HELENA study
Mälardalen University, School of Health, Care and Social Welfare.ORCID iD: 0000-0001-9604-462X
Escuela Universitaria de Ciencias de la Salud. Universidad de Zaragoza. Zaragoza.
Semmelweis University of Budapest, Department of Health Sciences and Sport Medicine, Hungary.
Karolinska Institutet, Dept Biosciences and Nutrition, Stockholm.
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2009 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Introduction: The HELENA study (Healthy Lifestyle in Europe by Nutrition in Adolescents) has been performed in ten cities around Europe. The study has used a computerized 24h-recall program called Young adolescents' nutrition assessment on computer” (YANA-C). The first YANA-C version has been developed, used and validated in Belgium. In the HELENA study all countries translated and culturally adapted the international YANA-C software according to a standard protocol. The validity of the results might depend on the translation and compliance to the protocol.

Aim: To investigate the relative validity of the computerized 24h-recall, YANA-C, against estimated dietary records, in adolescents (13 and 16 years of age) in three (additional) countries (Sweden, Hungary and Spain) belonging to the HELENA study.

Method: More than three hundred adolescents completed YANA-C on two non-consecutive days. One to five days later, the adolescents completed an estimated dietary record on two non-consecutive comparable days as those for which YANA-C was completed. Wilcoxon signed rank test is used to compare the intakes of food groups and nutrients (energy, carbohydrates, protein, fat, fiber, calcium, vitamin C, iron) between both methods.

Results: Preliminary results from the Hungarian sample (n=99) show a significant lower intake of carbohydrates (p<0.001), protein (p<0.001) and a higher intake of fat (<0.05), fiber (<0.05), calcium (<0.01) in the dietary records compared to the YANA-Cs. There was no significant difference in energy, vitamin C and iron.

Discussion/Conclusion: The results differ from what previously has been found in the Flemish validation study. This indicates the importance to validate the instrument in the different countries using YANA-C. Analyses on a food group level might help to explain differences between methods and between countries.

HELENA study takes place with the financial support of the European Community (FP6-2003-Food-2-A, FOOD- 2003-T2.4, Contract FOOD-CT-2005-007034)

Place, publisher, year, edition, pages
San Diego: U.S. National cancer institute , 2009. 298-298 p.
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:mdh:diva-10523OAI: oai:DiVA.org:mdh-10523DiVA: diva2:359133
Conference
7th International Conference on Diet and Activity Methods (ICDAM7), Washington, june 5-7, 2009
Available from: 2010-10-26 Created: 2010-10-26 Last updated: 2015-10-12Bibliographically approved

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