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Clinics ; 62(3): 225-234, June 2007. tab
Article in English | LILACS | ID: lil-453281

ABSTRACT

The aims of the present work were the evaluation of allergic disease prevalence among 6 and 7 year-old students from the western districts of São Paulo city and the comparison of these data with those obtained in the International Study of Asthma and Allergies in Childhood (ISAAC) phase I, performed in the central-southern districts of São Paulo, using the ISAAC standardized written questionnaire. METHODS: 5,040 questionnaires were distributed and 3,312 were returned. Proportional differences were estimated by Chi square or Fisher exact tests. Odds Ratio and 95 percent confidence intervals between genders and allergic diseases were calculated. Values of p<0.05 were considered statistically significant. RESULTS: The corrected prevalences found were: asthma 24.4 percent, medical diagnosis of asthma 5.7 percent, rhinitis 25.7 percent, rhinoconjunctivitis 11.3 percent, medical diagnosis of rhinitis 20.0 percent, atopic eczema 9.2 percent. Significant associations between asthma and rhinitis (OR=3.3), asthma and eczema (OR=2.2), and rhinitis and eczema (OR=2.8) occurred. The male gender was prevalent regarding asthma and rhinitis. Compared to data from ISAAC phase I, higher asthma prevalence and severity, and lower values for rhinitis and eczema were observed in this study. CONCLUSIONS: The present study evidenced high prevalences for asthma and rhinitis compared to the children's medical diagnosis. The male gender predominated in all positive responses regarding asthma and rhinitis. The most frequent associations observed were between asthma and rhinitis and asthma and eczema. In the western districts of São Paulo, a higher prevalence of asthma symptoms and severity and lower prevalences for rhinitis and eczema occurred compared to the central-southern districts of the city.


OBJETIVOS: Avaliar a prevalência das doenças alérgicas na região oeste de São Paulo entre escolares de 6 a 7 anos e comparar os dados obtidos com aqueles da fase I da região centro-sul, através do questionário padronizado do International Study of Asthma and Allergies in Childhood. MÉTODOS: Foram enviados 5040 questionários escritos com resposta de 3.312 alunos. As diferenças entre proporções foram avaliadas pelo Teste do Qui-quadrado ou Teste Exato de Fisher, se calculado a Razão das Chances, intervalo de confiança 95 por cento entre os sexos e doenças alérgicas. Os valores de p < 0,05 foram considerados como significantes. RESULTADOS: As prevalências corrigidas encontradas foram: asma 24,4 por cento, diagnóstico médico de asma 5,7 por cento, rinite 25,7 por cento, rinoconjuntivite 11,3 por cento, diagnóstico médico de rinite 20 por cento, eczema atópico 9,2 por cento. Houve associação significativa entre asma e rinite (OR=3,3), asma e eczema (OR=2,2) e rinite e eczema atópico (OR=2,8). O sexo masculino foi predominante para asma e rinite. Comparando-se os dados da fase I, observou-se prevalência mais elevada dos sintomas e gravidade de asma e valores menores para rinite e eczema. CONCLUSÕES: As prevalências de asma e rinite neste estudo mostraram valores elevados em comparação ao diagnóstico médico. Houve predomínio do sexo masculino para asma e rinite. As associações mais freqüentes foram entre asma e rinite e asma e eczema. Em relação à região centro-sul de São Paulo, observou-se que na região oeste houve maior prevalência dos sintomas e gravidade da asma e menor prevalência de rinite e eczema.


Subject(s)
Child , Female , Humans , Male , Asthma/epidemiology , Eczema/epidemiology , Rhinitis/epidemiology , Surveys and Questionnaires , Asthma/diagnosis , Brazil/epidemiology , Eczema/diagnosis , Prevalence , Rhinitis/diagnosis
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