Patterns of health-related behaviours among adolescents: a cross-sectional study based on the National Survey of School Health Brazil 2012

Azeredo, Catarina Machado; Levy, Renata Bertazzi; Tourinho Peres, Maria Fernanda; Menezes, Paulo Rossi; Araya, Ricardo

Abstract

Objectives: The aim of this study was to analyse the clustering of multiple health-related behaviours among adolescents and describe which socio-demographic characteristics are associated with these patterns. Design: Cross-sectional study. Setting: Brazilian schools assessed by the National Survey of School Health (PeNSE, 2012). Participants: 104 109 Brazilian ninth-grade students from public and private schools (response rate= 82.7%). Methods: Exploratory and confirmatory factor analyses were performed to identify behaviour clustering and linear regression models were used to identify socio-demographic characteristics associated with each one of these behaviour patterns. Results: We identified a good fit model with three behaviour patterns. The first was labelled 'problem-behaviour' and included aggressive behaviour, alcohol consumption, smoking, drug use and unsafe sex; the second was labelled 'health-compromising diet and sedentary behaviours' and included unhealthy food indicators and sedentary behaviour; and the third was labelled 'health-promoting diet and physical activity' and included healthy food indicators and physical activity. No differences in behaviour patterns were found between genders. The problem-behaviour pattern was associated with male gender, older age, more developed region (socially and economically) and public schools (compared with private). The 'health-compromising diet and sedentary behaviours' pattern was associated with female gender, older age, mothers with higher education level and more developed region. The 'health-promoting diet and physical activity' pattern was associated with male gender and mothers with higher education level. Conclusions: Three health-related behaviour patterns were found among Brazilian adolescents. Interventions to decrease those negative patterns should take into account how these behaviours cluster together and the individuals most at risk.

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Título según WOS: ID WOS:000391303400010 Not found in local WOS DB
Título de la Revista: BMJ OPEN
Volumen: 6
Número: 11
Editorial: BMJ Publishing Group
Fecha de publicación: 2016
DOI:

10.1136/bmjopen-2016-011571

Notas: ISI