Factors associated with asthma expression in adolescents

Factors associated with asthma expression in adolescents

Author Campos Fernandes, Silvia de Souza Google Scholar
Sole, Dirceu Autor UNIFESP Google Scholar
Camargos, Paulo Google Scholar
de Andrade, Claudia Ribeiro Google Scholar
Ibiapina, Cassio da Cunha Google Scholar
Abstract Objective: To evaluate risk factors associated with asthma symptoms in adolescents in the 13-to 14-year age bracket. Methods: This was a cross-sectional study involving adolescents enrolled in randomly selected public schools in the city of Belo Horizonte, Brazil, and conducted with the use of the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire and its supplementary module for risk factor assessment. The ISAAC questionnaire was completed by the students themselves, whereas the supplementary questionnaire was completed by their parents or legal guardians. Variables showing p <= 0.25 in the univariate analysis were included in the multivariate analysis. Stepwise regression with backward elimination was used for variable selection. Results: We evaluated 375 adolescents, 124 (33.1%) of whom had asthma symptoms. The final multivariate analysis model revealed that asthma symptoms were associated with birth weight < 2,500 g (p < 0.001), day care center or nursery attendance (p < 0.002), maternal history of asthma (p < 0.001), contact with animals during the first year of life (p < 0.027), current contact with animals outside the home (dogs, cats, or farm animals

p < 0.005), and more than 20 cigarettes per day smoked by parents or other household members (p < 0.02). Conclusions: Exposure to animals in and outside the home is associated with asthma symptoms, as is environmental tobacco smoke exposure. Families, health professionals, and administrators of health care facilities should take that into account in order to prevent asthma and reduce asthma morbidity.
Keywords Asthma
Risk factors
xmlui.dri2xhtml.METS-1.0.item-coverage Brasilia Df
Language English
Date 2018
Published in Jornal Brasileiro De Pneumologia. Brasilia Df, v. 44, n. 1, p. 12-17, 2018.
ISSN 1806-3713 (Sherpa/Romeo, impact factor)
Publisher Soc Brasileira Pneumologia Tisiologia
Extent 12-17
Origin http://dx.doi.org/10.1590/S1806-37562017000000078
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000425921800005
URI https://repositorio.unifesp.br/handle/11600/53849

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