Response rate in the Study of Cardiovascular Risks in Adolescents – ERICA

Authors

  • Thiago Luiz Nogueira da Silva Universidade Federal do Rio de Janeiro; Instituto de Estudos em Saúde Coletiva
  • Carlos Henrique Klein Fundação Oswaldo Cruz; Escola Nacional de Saúde Pública Sérgio Arouca; Departamento de Epidemiologia
  • Amanda de Moura Souza Universidade Federal do Rio de Janeiro; Instituto de Estudos em Saúde Coletiva
  • Laura Augusta Barufaldi Ministério da Saúde; Secretaria de Vigilância em Saúde; Departamento de Vigilância de Doenças e Agravos Não Transmissíveis e Promoção da Saúde
  • Gabriela de Azevedo Abreu Universidade do Estado do Rio de Janeiro; Instituto de Medicina Social
  • Maria Cristina Caetano Kuschnir Universidade do Estado do Rio de Janeiro; Faculdade de Ciência Médicas; Núcleo de Estudos da Saúde do Adolescente
  • Mauricio Teixeira Leite de Vasconcellos Fundação Instituto Brasileiro de Geografia e Estatística; Escola Nacional de Ciências Estatísticas
  • Katia Vergetti Bloch Universidade Federal do Rio de Janeiro; Instituto de Estudos em Saúde Coletiva

DOI:

https://doi.org/10.1590/S01518-8787.2016050006730

Abstract

OBJECTIVE To describe the response rate and characteristics of people who either took part or not in from the Study of Cardiovascular Risks in Adolescents (ERICA) , according to information subsets. METHODS ERICA is a school-based, nation-wide investigation with a representative sample of 12 to 17-year-old adolescents attending public or private schools in municipalities with over 100,000 inhabitants in Brazil. Response rate of eligible subjects were calculated according to macro-regions, sex, age, and type of school (public or private). We also calculated the percentages of replacement schools in comparison with the ones originally selected as per the sample design, according to the types of schools in the macro-regions. The subjects and non-subjects were compared according to sex, age, and average body mass indices (kg/m2). RESULTS We had 102,327 eligible adolescents enrolled in the groups drawn. The highest percentage of complete information was obtained for the subset of the questionnaire (72.9%). Complete information regarding anthropometric measurements and the ones from the questionnaire were obtained for 72.0% of the adolescents, and the combination of these data with the 24-hour dietary recall were obtained for 70.3% of the adolescents. Complete information from the questionnaire plus biochemical blood evaluation data were obtained for 52.5% of the morning session adolescents (selected for blood tests). The response percentage in private schools was higher than the one in public schools for most of the combination of information. The ratio of older and male adolescents non-participants was higher than the ratio among participants. CONCLUSIONS The response rate for non-invasive procedures was high. The response rate for blood collection – an invasive procedure that requires a 12-hour fasting period and the informed consent form from legal guardians – was lower. The response rate observed in public schools was lower than in the private ones, and that may reflect lower school frequency of registered students.

Published

2016-02-01

Issue

Section

Original Articles

How to Cite

Silva, T. L. N. da, Klein, C. H., Souza, A. de M., Barufaldi, L. A., Abreu, G. de A., Kuschnir, M. C. C., Vasconcellos, M. T. L. de, & Bloch, K. V. (2016). Response rate in the Study of Cardiovascular Risks in Adolescents – ERICA . Revista De Saúde Pública, 50(suppl. 1), 3s. https://doi.org/10.1590/S01518-8787.2016050006730