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Reliability and validation of a questionnaire on barriers and facilitators perceived to reduce sedentary behavior

Grant number: 21/14187-1
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): February 01, 2022
Effective date (End): June 30, 2022
Field of knowledge:Health Sciences - Collective Health - Epidemiology
Principal Investigator:Augusto César Ferreira de Moraes
Grantee:Guilherme Augusto de Oliveira
Host Institution: Faculdade de Saúde Pública (FSP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:17/20317-0 - New frontiers in pediatric nutritional and cardiovascular health: methods development to assess the double burden of malnutrition and ideal cardiovascular health in low-in-middle income countries - SAYCARE cohort study, AP.JP


Technological advances and prolonged exposure time to screens aredirectly associated with sedentary behavior in the pediatric population, as a consequence ofan increase in cardiovascular risk factors and obesity, which can accompany the individualin adulthood. The validation of tools that assess perceived barriers and facilitators forreducing sedentary behavior in children and adolescents in South American countries,studying the psychometric properties of an instrument to understand its level of safety andvalidity is important in order to prevent preventive behavior. health and its aggravatingfactors. Objective: (i) to test the confidence (test-retest) of a questionnaire on barriers andfacilitators of sedentary behavior in children and adolescents in South America; (ii) and thepredictive validity of the questionnaire with sedentary time measured by accelerometry.Methodology: SAYCARE Study is an observational study of multicentric feasibility in asample of children and adolescents from 3 to 17 years of age (children: n = 161 adolescentsn = 177. This pilot was developed in São Paulo and six other cities in South America. South:Teresina (Brazil), Buenos Aires (Argentina), Santiago (Chile), Montevideo (Uruguay), Lima(Peru) and Medellín (Colombia). Parents for children and self-reported for teenagers. Theaccelerometer was used for at least 3 days, including at least one weekend day. Comparethe values of sedentary time, using accelerometers, by quartiles of measured sedentarytime. For the analysis, statistics will use descriptive analyzes (mean, median, standarddeviation and proportions). The agreement between the basic measures will be calculatedbased on the kappa coefficients for the categorical variables in order to answer objective I;and intraclass correlation coefficients for the quantitative variables by p art of Spearman andPearson correlation coefficients for parametric and nonparametric variables, an objective ofresponding to objective II. The confidence interval adopted will be 95%, with criterion ofstatistical significance ± = 5%.

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
OLIVEIRA, Guilherme Augusto de. Reliability and validation of a questionnaire on perceived barriers and facilitators of sedentary behavior in children and adolescents in South America. 2023. Master's Dissertation - Universidade de São Paulo (USP). Faculdade de Saúde Pública (FSP/CIR) São Paulo.

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