Document Detail

Evaluation of photographs supporting an FFQ developed for adolescents.
MedLine Citation:
PMID:  23164067     Owner:  NLM     Status:  Publisher    
OBJECTIVE: To evaluate the validity of food photographs used to support the reporting of food intake with an FFQ designed for adolescents from Rio de Janeiro, Brazil. DESIGN: A set of ninety-five food photographs was elaborated. The photographs' evaluation process included the acknowledgement of foods and portions in the pictures. In the identification of foods (ninety-five photographs) and typical portions (twelve photographs), the adolescents were requested to answer a structured questionnaire related to the food photographs. The identification of the portion size of amorphous foods (forty-three photographs) was performed using three different portion sizes of actual preparations. The proportions (and 95 % confidence intervals) of adolescents who correctly identified foods and portion size in each photograph were estimated. SETTING: A public school in Niterói, Rio de Janeiro State, Brazil. SUBJECTS: Sixty-two adolescents between 11·0 and 18·9 years old, randomly selected. RESULTS: At least 90 % of adolescents correctly identified the food in ninety-two photographs and the food in the three remaining photographs was recognized by 80-89 % of the adolescents. At least 98 % of the adolescents correctly identified eleven typical or natural portions in the food photographs. For amorphous foods, at least 70 % of teenagers correctly identified the portion size in the photograph of thirty-one foods; for the other photographs, the portion size was correctly recognized by 50-69 % of the adolescents for eight foods and by less than 50 % of adolescents for four foods. CONCLUSIONS: The analysed photographs are appropriate visual aids to the reporting of food consumption by adolescents.
Alessandra Page Brito; Celso Pereira Guimarães; Rosangela Alves Pereira
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-20
Journal Detail:
Title:  Public health nutrition     Volume:  -     ISSN:  1475-2727     ISO Abbreviation:  Public Health Nutr     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9808463     Medline TA:  Public Health Nutr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-6     Citation Subset:  -    
1 Departamento de Nutrição Social e Aplicada, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373, Edifício do Centro de Ciências da Saúde, Bloco J, 2° andar, Rio de Janeiro, RJ 21941-902, Brazil.
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