Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/44758
Title: A review of the use of information and communication technologies for dietary assessment
Authors: Ngo, Joy
Engelen, Anouk
Molag, Marja
Roesle, Joni
García-Segovia, Purificación
Serra-Majem, Lluís 
UNESCO Clasification: 3206 Ciencias de la nutrición
570106 Documentación
Keywords: Personal Digital Assistant
Physical-Activity
Intervention
Validation
Validity
Diet Assessment
Methods
Information And Communication Technologies
Review
Issue Date: 2009
Publisher: 0007-1145
Journal: British Journal of Nutrition 
Abstract: Presently used dietary-assessment methods often present difficulties for researchers and respondents, and misreporting errors are common. Methods using information and communication technologies (ICT) may improve quality and accuracy. The present paper presents a systematic literature review describing studies applying ICT to dietary assessment. Eligible papers published between January 1995 and February 2008 were classified into four assessment categories: computerised assessment personal digital assistants (PDA); digital photography; smart cards. Computerised assessments comprise frequency questionnaires, 24 h recalls (24HR) and diet history assessments. Self-administered computerised assessments, which can include audio support, may reduce literacy problems, be translated and are useful for younger age groups, but less so for those unfamiliar with computers. Self-administered 24HR utilising computers yielded comparable results as standard methods, but needed supervision if used in children. Computer-assisted interviewer-administered recall results were similar to conventional recalls, and reduced inter-interviewer variability. PDA showed some advantages but did not reduce underreporting. Mobile phone meal photos did not improve PDA accuracy. Digital photography for assessing individual food intake in dining facilities was accurate for adults and children, although validity was slightly higher with direct visual observation. Smart cards in dining facilities were Useful for measuring food choice but not total dietary intake. In conclusion, computerised assessments and PDA are promising, and could improve dietary assessment quality in sonic Vulnerable groups and decrease researcher workload. Both still need comprehensive evaluation for micronutrient intake assessment. Further work is necessary for improving ICT tools in established and new methods and for their rigorous evaluation.
URI: http://hdl.handle.net/10553/44758
ISSN: 0007-1145
DOI: 10.1017/S0007114509990638
Source: British Journal of Nutrition [ISSN 0007-1145], v. 101 (sup. 2), p. s102-s112, (Julio 2009)
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