MARCUS VINICIUS NASCIMENTO FERREIRA
Projetos de Pesquisa
Unidades Organizacionais
LIM/39 - Laboratório de Processamento de Dados Biomédicos, Hospital das Clínicas, Faculdade de Medicina
3 resultados
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- Longitudinal Associations of Physical Activity Patterns and the Environment: An 18-Year Follow-Up to the MESA Study(2022) PARRA, Maira Tristao; MORAES, Augusto Cesar Ferreira De; NASCIMENTO-FERREIRA, Marcus Vinicius; MILLS, Paul J.; ALLISON, MatthewIntroduction: Cross-sectional association between the neighborhood-built environment and physical activity (PA) has been demonstrated previously, indicating the importance of neighborhood perception characteristics such as walkability, safety, and the connectivity of streets on PA levels. Our study aimed to assess the longitudinal data from participants of the Multi-Ethnic Study of Atherosclerosis (MESA) to evaluate the potential relationship between perceived environment and PA patterns. Methods: We analyzed data from a subset of participants (n = 3097) with available PA data who participated in a prospective cohort conducted from 2000 to 2018. The exposure variables were the perceived aspects of the neighborhood environment and the perception of safety, and the outcome was patterns of PA. Patterns were defined as categories reflecting meeting versus not meeting PA guidelines over time. We created the following categories: adopters (individuals who did not meet guidelines at baseline but met guidelines at Exam 6), relapsers (individuals who met guidelines at baseline but did not meet guidelines at Exam 6), maintainers (individuals who met guidelines both at baseline and Exam 6), and insufficiently active (individuals who did not meet guidelines at either baseline or Exam 6). The maintainers' group was considered the reference category. We estimated the relative risk to assess the magnitude effect of the association between environmental perceptions and the outcome. Results: Individuals who reported that lack of parks and playgrounds was ""not a problem"" in their neighborhood had a 2.3-times higher risk of decreasing their physical activity (i.e., the ""relapser"" category) compared to maintainers. After full adjustment, perceiving poor sidewalks as ""somewhat a serious problem"" was associated with a 64% lower risk of becoming an adopter than a maintainer. When compared to those who perceive the neighborhood as ""very safe"", perception of the neighborhood as ""safe"" to ""not at all safe"" (ratings 3, 4, and 5, respectively, on the perceived safety scale) was significantly associated with being classified in the adopter category. Conclusions: As the first longitudinal study of the association of perceived environment and physical activity within the MESA cohort, we conclude that a few aspects are longitudinally associated with being physically active among adults.
- Psychometric Properties of the Online International Physical Activity Questionnaire in College Students(2022) NASCIMENTO-FERREIRA, Marcus Vinicius; ROSA, Ana Clara Arrais; AZEVEDO, Jacyara Cristina; SANTOS, Armando Rodrigues de Alencar; ARAUJO-MOURA, Keisyanne De; FERREIRA, Kelber AbraoIntroduction: Due to the restrictions imposed to control the COVID-19 pandemic, there has been an increase in studies based on online surveys. However, there are important concerns about the validity and generalizability of results from online surveys. Thus, we aimed to test the reliability and validity of the online version of the International Physical Activity Questionnaire short form (IPAQ-SF) among college students from low-income regions. Methods: This was a methodological feasibility study with a random stratified sample from a college located in the state of Maranhao in the city of Imperatriz (Brazil). The sample consisted of 195 college students (at least 17 years of age) to evaluate the validity and 117 students to evaluate the reliability. All data were collected in a self-reported online format (via Google Forms) twice, with an interval of 2 weeks. We used Spearman's correlation analysis for the reliability study. Additionally, we applied exploratory and confirmatory factor analysis to evaluate the structural validity. Results: The questionnaire showed acceptable (rho > 0.30) and significant (p < 0.05) reliability, except for the question about the duration of sitting time on a weekend day. When assessing the construct validity (exploratory analysis), we identified a single factor that explained 88.8% of the variance. The 1-factor model showed acceptable model fit (SRMR = 0.039; CFI = 0.96; TLI = 0.90) in confirmatory analysis. Conclusions: The online version of the IPAQ-SF has acceptable reliability among college students from low-income regions and maintains the structure of the construct regarding to physical activity.
- Can Food and Beverage Advertising Questionnaire Predict Overweight and Obesity in Children and Adolescents from Low- and-Middle-Income Countries?(2022) MORAES, Augusto Cesar F. De; V, Marcus Nascimento-Ferreira; I, Laura Gonzalez-Zapata; CARVALHO, Heraclito BarbosaBackground: Information about the reliability and validity of questionnaires in low- and middle-income countries remains scarce.Objective: To test the reliability and predictive validity of a food and beverage marketing/advertising questionnaire for South American children and adolescents.Methods: A sample of 330 children (3-10 years old) and 215 adolescents (11-18 years old) was included from seven South American cities: Buenos Aires, Lima, Medellin, Montevideo, Santiago, Sao Paulo, and Teresina. The questionnaire consisted of seven questions about food and beverage marketing/advertising and decision influence. We assessed the reliability using temporal stability (2-week interval) and internal consistency. We assessed the predictive validity based on the risk of excess weight.Results: In children, reliability agreement from kappa coefficients ranged from 63.7% to 86.3%, and Cronbach's alpha (internal consistency estimate) ranged from 0.14 to 0.75. In adolescents, the reliability agreement ranged from 78.9% to 85.7%, and Cronbach's alpha ranged from 0.14 to 0.76. Exploratory factor analysis revealed two factors for both age groups. The predictive probabilities for excess weight ranged from 22.3% to 61.1% in children and from 24.9% to 64.1% in adolescents.Conclusions: The screen/marketing media questionnaire is a reliable and valid measure for the pediatric population from low- and middle-income countries. This subjective tool provides a feasible screening measure for the influence of advertising on children and adolescents at risk of overweight and obesity.