Assessment of the usability of a nutritional epidemiology computerized system

Ruggeri, Bruna Furer Ferri; Voci, Silvia Maria; Borges, Camila Aparecida; Slater, Betzabeth

doi:10.1590/s1415-790x2013000400016

Cited by 6 publications

(6 citation statements)

References 14 publications

(16 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Few studies have formally tested the usability of online dietary assessment tools. Most of these published studies are generally focused on the description of development and functionalities of the system rather than detailing the methods used to assess the tool [30]. Other studies have only reported users' acceptability with a comparison between using the system and using a traditional method, like YANA [39] and INTAKE24 [12].…”

Section: Discussionmentioning

confidence: 99%

“…Although usability-testing has been used in various developed e-health software, such as smoking websites [28] and online physical activity tools [29], there is limited information published on the usability-testing of online dietary assessment websites [30]. Therefore, this study aims to identify usability and design issues associated with the completion of myfood24 (beta-version) and to determine tool acceptability among adolescents (11-18y) before and after making improvements (beta & live-version).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Formative evaluation of the usability and acceptability of myfood24 among adolescents: a UK online dietary assessments tool

et al. 2015

View full text Add to dashboard Cite

, on behalf of the myfood24 consortium group Abstract Background: Myfood24 is a new online 24 h dietary assessment tool developed for use among the UK population. Limited information is available on the usability and acceptability of such tools. Hence this study aims to determine the usability and acceptability of myfood24 among British adolescents (11-18y) before and after making the improvements.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Formative evaluation of the usability and acceptability of myfood24 among adolescents: a UK online dietary assessments tool

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The present study used Poisson regression regularly applied to count outcomes such as the number of food items consumed per day, with logarithmic transformation of the counts and population variance assumed to equal the mean consumption, both of which take into account the peculiarities of the measurement error structure in diet validation (32) . The WebCAAFE presents a different framework from other web-based questionnaires (11)(12)(13)(14)(15)(16)(17)(18)(19)(20) mainly because it was formulated as a previous-day recall of frequency of intake of thirty-two food items in each of six daily eating events, so the dietary assessment does not involve a fully quantified 24 h recall of foods and beverages. The cognitive task required for estimating portion size, frequency and averaging may not be compatible with the perceptual and conceptual capacities of children who have not reached the stage of abstract reasoning at approximately 10-11 years of age (26,27,29) .…”

Section: Discussionmentioning

confidence: 99%

“…Information technology has reduced the cost of surveying lifestyle factors to a cost lower than traditional paper-and-pencil methods ( 10 ) . Several countries have developed computer-based questionnaires to assess dietary intake and/or physical activity in schoolchildren: the UK ( 11 , 12 ) , Denmark ( 13 ) , Norway ( 14 ) , Belgium ( 15 ) , Portugal ( 16 ) , the USA ( 17 , 18 ) , Canada ( 19 ) and Brazil ( 20 , 21 ) .…”

mentioning

confidence: 99%

Validity of WebCAAFE questionnaire for assessment of schoolchildren’s dietary compliance with Brazilian Food Guidelines

Kupek

Assis

Lobo

2016

Public Health Nutr.

View full text Add to dashboard Cite

Objective: To estimate reporting bias of WebCAAFE, a web-based questionnaire for the assessment of food intake (recall of frequency of intake of thirty-two food items the day before) and physical activity in schoolchildren. Design: Cross-sectional study. Self-reported food intake on WebCAAFE was compared with direct observation of school meals in five public schools. Additional data included school grade, sex, BMI, socio-economic status and access to Internet at home. Poisson regression was used to calculate the reporting bias (WebCAAFE v. direct observation) and the sample size necessary to detect a statistically significant difference between WebCAAFE reports and at least 75 % compliance with the recommendations for a healthy diet. Setting: Intentional sample of five elementary public schools in Florianopolis, Brazil. Subjects: Schoolchildren (n 629) from 2nd to 5th grades. Results: Moderate bias magnitude was found for most food groups of interest. Frequency of consumption was not related to the bias. Sample sizes necessary to detect the compliance with dietary recommendations varied between four and seventy-four individuals for the different groups investigated. Conclusions: After adjusting for moderate bias, WebCAAFE may be used as a food questionnaire for evaluation of schoolchildren's food compliance on a group level, even with a relatively small sample size. The Strategic Action Plan to Tackle Non-Communicable Chronic Diseases in Brazil, 2011Brazil, -2022 , launched by the Ministry of Health in 2010, defined and prioritized actions and investments necessary to address non-communicable diseases in the next 10 years based on three principles: (i) surveillance, information, evaluation and monitoring; (ii) health promotion; and (iii) integral care. The aim is to diminish obesity rates in 5-9-year-old children and adolescents and to halt the rise of obesity in adults (≥18 years old) (1,2) . In Brazil, there are surveillance systems for adolescents (3) and adults (4) but none for 5-9-year-old-children whose overweight (including obesity) prevalence tripled between 1974 and 2009, from 11 % to over 33 % (5) . Therefore it is necessary to develop surveillance and monitoring systems to determine compliance with the obesity prevalence targets for 5-9-year-old children, set at 8 % for boys and 5 % for girls (2) .Periodic population-based surveys are the principal source of time trends in nutritional status and associated lifestyle factors such as diet and physical activity. Monitoring these parameters over the past decades has shown a dramatic increase in excess weight worldwide, especially in younger generations and children (6)(7)(8) . In many countries, the number and complexity of survey items covering these issues have also increased, incurring higher costs (9) . To strike the right balance between the rising costs and a growing need to update our knowledge on population diet and physical activity, it is of utmost importance to clarify what sort of decision could be made on the basis of such surveys an...

show abstract

“…Constructed on the basis of expert consultation and expertise, the FIS simulates human reasoning to support decisions based on a given condition 23,24 , such as diagnoses and monitoring in the health area 25,26,27,28,29,30,31 . Construction of the FIS thus involves four principal stages: fuzzification, construction of the rules set, inference, and defuzzification 32 .…”

Section: Development Of the Modelmentioning

confidence: 99%

Sistema de apoio à avaliação de impactos da poluição sonora sobre a saúde pública

et al. 2016

View full text Add to dashboard Cite

Resumo: O objetivo do trabalho foi desenvolver um sistema de apoio à avaliação da poluição sonora, aplicado na zona central de Rio Claro, São Paulo, Brasil. Para isso, dados foram obtidos por meio de medições sonoras e entrevistas com a população, gerando como indicadores o nível sonoro equivalente (Leq ), o índice de ruído de tráfego (LTNI ) e um diagnóstico participativo (Dp ), integrados por intermédio de um sistema de inferência fuzzy (SIF). Como resultado, o sistema proposto permitiu classificar os pontos avaliados quanto ao grau de impacto da poluição sonora sobre a saúde da população (IPS ) na área de estudo, que pode ser considerado significativo em 31,4% dos pontos e muito significativo em 62,9%. A possibilidade de adequar o SIF de acordo com as condições de estudo viabiliza a sua generalização e, desta forma, apoia a avaliação e respectiva gestão do ruído ambiental em outras regiões.

show abstract

Assessment of the usability of a nutritional epidemiology computerized system

Abstract: The study showed that the system is easy to be learned and used, but the answers are scattered. The instrument proved to be a useful tool to monitor and evaluate health and dietary intake in epidemiologic studies.

Cited by 6 publications

References 14 publications

Formative evaluation of the usability and acceptability of myfood24 among adolescents: a UK online dietary assessments tool

Formative evaluation of the usability and acceptability of myfood24 among adolescents: a UK online dietary assessments tool

Validity of WebCAAFE questionnaire for assessment of schoolchildren’s dietary compliance with Brazilian Food Guidelines

Sistema de apoio à avaliação de impactos da poluição sonora sobre a saúde pública

Contact Info

Product

Resources

About