Mudanças no consumo alimentar e atividade física de escolares de Florianópolis, SC, 2002 - 2007

Costa, Filipe Ferreira da; Assis, Maria Alice Altenburg de; Leal, Danielle Biazzi; Campos, Vanessa; Kupek, Emil; Conde, Wolney Lisbôa

doi:10.1590/s0034-89102012005000058

Cited by 11 publications

(16 citation statements)

References 22 publications

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“…In the formative research to develop the CAAFE questionnaire, several data sources were taken into account including: (1) our experience with the validation studies conducted with the paper-and-pencil versions of the PDFQ [11,12] and Previous Day Physical Activity Questionnaire (PDPAQ) [34], (2) food consumption and physical activity data reported by schoolchildren participating in school surveys using the PDFQ and PDPAQ [9,10], (3) previous Web-based instruments designed for schoolchildren [18-20,22-24,35], (4) data from focus groups conducted with physical education (PE) teachers of schoolchildren [36] and nutritionists working with the school meals program, (5) 7-day food and activity diaries completed by 180 schoolchildren from three schools, and (6) research team discussions with a specialist in child psychology and education to choose the questions and the Web layout according to the children’s cognitive abilities. The main lessons learned in the formative research process indicated that the instrument must: (1) be as simple as possible both in the quantity and quality of information required from the children, (2) be attractive and interactive, and (3) include only relevant items to be marked by the children.…”

Section: Methodsmentioning

confidence: 99%

“…In 2002 and 2007, two surveys using similar methods to investigate nutritional status in schoolchildren and its association with behavioral and sociodemographic factors were conducted in the city of Florianopolis in Southern Brazil [8-10]. A paper-and-pencil questionnaire was used to assess the food consumption and physical activity of schoolchildren aged 7 to 10 years [11].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Diet and Physical Activity of Brazilian Schoolchildren: Usability Testing of a Web-Based Questionnaire

Costa¹,

Schmoelz²,

Davies³

et al. 2013

JMIR Res Protoc

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BackgroundInformation and communication technology (ICT) has been used with increasing frequency for the assessment of diet and physical activity in health surveys. A number of Web-based questionnaires have been developed for children and adolescents. However, their usability characteristics have scarcely been reported, despite their potential importance for improving the feasibility and validity of ICT-based methods.ObjectiveThe objective of this study was to describe the usability evaluation of the Consumo Alimentar e Atividade Física de Escolares (CAAFE) questionnaire (Food Consumption and Physical Activity Questionnaire for schoolchildren), a new Web-based survey tool for the self-assessment of diet and physical activity by schoolchildren.MethodsA total of 114 schoolchildren aged 6 to 12 years took part in questionnaire usability testing carried out in computer classrooms at five elementary schools in the city of Florianopolis, Brazil. Schoolchildren used a personal computer (PC) equipped with software for recording what is on the computer screen and the children’s speech during usability testing. Quantitative and qualitative analyses took into account objective usability metrics such as error counts and time to complete a task. Data on the main difficulties in accomplishing the task and the level of satisfaction expressed by the children were assessed by the observers using a standardized form and interviews with the children. Descriptive statistics and content analysis were used to summarize both the quantitative and the qualitative aspects of the data obtained.ResultsThe mean time for completing the questionnaire was 13.7 minutes (SD 3.68). Compared to the children in 2nd or 3rd grades, those in 4th or 5th grades spent less time completing the questionnaire (median 12.4 vs 13.3 minutes, P=.022), asked for help less frequently (median 0 vs 1.0 count, P=.005), had a lower error count (median 2.0 vs 8.0 count, P<.001), and obtained a higher overall performance score (median 73.0 vs 68.0, P=.005). Children with a PC at home spent less time completing the questionnaire (median 12.3 vs 14.9 minutes, P<.001), had a lower overall error count (median 2.0 vs 9.0 count, P=.03), and had a higher performance score (median 72.0 vs 64.0, P=.005) compared to the children without a PC at home. The most common difficulty in completing the questionnaire was in using the scroll bar. The majority of children reported a positive evaluation (liked a lot or liked) for the four design elements, which were evaluated.ConclusionsThe results of the present study provided feedback to improve the final version of the CAAFE questionnaire. Quantitative data showed minor errors and system failures, while qualitative data indicated that, overall, the children enjoyed the CAAFE questionnaire. Grade levels and PC use must be taken into account in Web-based tools designed for children.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Diet and Physical Activity of Brazilian Schoolchildren: Usability Testing of a Web-Based Questionnaire

Costa¹,

Schmoelz²,

Davies³

et al. 2013

JMIR Res Protoc

Self Cite

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“…Thus, this methodological strategy may have over-or underestimated FV intake. However, other studies have used 'FV intake frequency (times per day)' as proxy of 'number of FV servings per day' [5][6][7] .…”

Section: Instituto Brasileiro De Geografia E Estamentioning

confidence: 99%

“…The present study used the questionnaire for assessing a single food intake day of the schoolchildren, which may estimate a day's FV intake accurately, but not the habitual FV intake. However, single-day assessment has been proven adequate and is often preferred by some studies, especially those that involve large, complex samples 6,7,23,33 .…”

Section: Instituto Brasileiro De Geografia E Estamentioning

confidence: 99%

“…In Florianópolis (SC), Costa et al 7 studied 4,168 children aged 7 to 10 years to assess dietary changes after a five-year period (2002 and 2007) and found that the FV intake of children attending public and private schools decreased significantly by 22.9% and 27.8%, respectively, going from The growing prevalence of obesity in children and adolescents [13][14][15] emphasizes the . The nutritional basis behind the recommendation of higher FV intake is the possibility of FV replacing low-nutrient, energy-dense foods, such as refined grains and sugar, basic ingredients in processed and fast foods.…”

Section: Introductionmentioning

confidence: 99%

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Factors associated with the consumption of fruits and vegetables in schoolchildren aged 7 to 14 years of Florianópolis, South of Brazil

2014

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Objective: To estimate the prevalence of the fruit and vegetable intake of schoolchildren aged 7 to 14 years from Florianópolis, Santa Catarina, Brazil, and analyze the associated factors. Methods: This cross-sectional study analyzed food intake, socioeconomic, and biological data of 2,836 schoolchildren. The Chi-square test analyzed the dependent (fruit and vegetable intake) and independent variables; the latter with p-value <0.20 were selected for logistic regression analysis. The level of significance was p<0.05. Results: Only 4.8% of the sample had adequate fruit and vegetable intake. The variables associated with adequate fruit and vegetable intake were school ownership status (private versus public), mother's education level, and family income per member. After adjustment only family income per capita remained associated with fruit and vegetable intake. Conclusion: The fruit and vegetable intake of schoolchildren aged 7 to 14 years from Florianópolis, Santa Catarina, Brazil, is inadequate.

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Changes in total and central adiposity and body fat distribution among 7–10-year-old schoolchildren in Brazil

Leal

Assis

González‐Chica

et al. 2014

Public Health Nutr.

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Objective: To describe changes in total and central adiposity and body fat distribution in children over a 5-year period by investigating variations in BMI, waist circumference (WC), waist-to-height ratio (WHtR) and skinfold thicknesses (SFT). Design: A school-based sample of children from 2nd to 5th grades of elementary schools participated in two cross-sectional studies in 2002 (n 2936) and 2007 (n 1232). Setting: Public and private schools of Florianopolis, Brazil. Subjects: Schoolchildren aged 7-10 years had their weight, height, WC and SFT measured according to standard procedures. Body fat distribution was assessed by triceps, subscapular, suprailiac and medial calf skinfold measurements. Changes in BMI, WC, WHtR and SFT were analysed, adjusting for type of school and monthly family income. Results: Adjusted mean differences between 2002 and 2007 for BMI and WC were always positive and of similar magnitude between boys and girls. However, a statistically significant increase was observed only for BMI (raw and Z-score values) in boys. WHtR remained stable in both sexes. Adjusted median values for SFT also increased in boys and girls, except for triceps skinfold. BMI, WC and SFT tended to increase across age classes in both sexes. The relative change observed for the median central skinfolds (subscapular and suprailiac) was greater than that of peripheral skinfolds (triceps and medial calf). Conclusions: The subcutaneous adipose tissue (SFT) appeared to increase at a faster rate than total adiposity (BMI). The increase in central SFT indicates that the relative change is due primarily to a rise in central adiposity.

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Mudanças no consumo alimentar e atividade física de escolares de Florianópolis, SC, 2002 - 2007

Cited by 11 publications

References 22 publications

Assessment of Diet and Physical Activity of Brazilian Schoolchildren: Usability Testing of a Web-Based Questionnaire

Assessment of Diet and Physical Activity of Brazilian Schoolchildren: Usability Testing of a Web-Based Questionnaire

Factors associated with the consumption of fruits and vegetables in schoolchildren aged 7 to 14 years of Florianópolis, South of Brazil

Changes in total and central adiposity and body fat distribution among 7–10-year-old schoolchildren in Brazil

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