[Prevalence of asthma and risk factors associated: population based study in São Paulo, Southeastern Brazil, 2008-2009].

Rev Saude Publica

Programa de Pós-Graduação em Saúde Pública, Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brasil.

Published: October 2012

AI Article Synopsis

  • A study was conducted in São Paulo, Brazil, involving 1,185 children and adolescents to evaluate the prevalence of asthma and its associated risk factors from 2008 to 2009.
  • The results indicated that 9.1% of respondents reported having asthma, with significant associations found for various factors such as age, allergies, rhinitis, recent health issues, household size, and skin color.
  • Key findings emphasized that children aged 5-9, those with allergies or rhinitis, and those living in smaller homes were at a higher risk, highlighting the need for awareness regarding environmental and health conditions linked to asthma.

Article Abstract

Objective: To assess the prevalence of asthma and risk factors associated in children and adolescents.

Methods: Population-based cross-sectional study with 1,185 female and male children and adolescents carried out in the city of São Paulo, Southeastern Brazil, from 2008 to 2009. Data were collected through home interviews. Respondents were selected from two-stage (census tract, household) cluster random sampling stratified by gender and age. Multiple Poisson regression was used in the adjusted analysis between the outcome and socioeconomic, demographic, lifestyle and health condition variables.

Results: Of all respondents, 9.1% (95%CI 7.0;11.7) reported asthma. After adjustment, the following variables were found independently associated with asthma: age (0 to 4 years vs. 15 to 19) (PR 3.18, 95%CI 1.20;8.42); age (5 to 9 years vs. 15 to 19) (PR 6.37, 95%CI 2.64;15.39); age (10 to 14 years vs. 15 to 19) (PR 4.51, 95%CI 1.95;10.40); allergy (yes vs. no) (PR 2.22, 95%CI 1.24;4.00); rhinitis (yes vs. no) (PR 2.13, 95%CI 1.22;3.73); health conditions in the 15 days preceding the interview (yes vs. no) (PR 1.96, 95%CI 1.23;3.11); number of rooms in the household (1 to 3 vs. 4 and more) (PR 1.67, 95%CI 1.05;2.66); and skin color (black and mixed vs. white) (PR 2.00, 95%CI 1.14;3.49).

Conclusions: This study showed the importance of factors associated with asthma including rhinitis and allergy; age between 5 to 9 years old; black and mixed skin color; and household with few rooms. Frequent health problems are seen as a common consequence of asthma.

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Source
http://dx.doi.org/10.1590/s0034-89102012000500009DOI Listing

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