Increasing asthma prevalence in a rural New Zealand adolescent population: 1975-89.

Shaw, R A; Crane, Julian; O'Donnell, T V; Porteous, L E; Coleman, Eli

doi:10.1136/adc.65.12.1319

Cited by 124 publications

(69 citation statements)

References 7 publications

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“…Hot and humid climates (characteristics that Recife has) are associated with greater prevalence. 24 The reduction in asthma prevalence reported in Recife differs from international studies, 10,11,[15][16][17] in which the opposite has occurred. In Brazil results are divergent.…”

Section: Discussioncontrasting

confidence: 48%

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Asma em escolares do Recife - comparação de prevalências: 1994-95 e 2002

Britto

Bezerra

Brito

et al. 2004

J. Pediatr. (Rio J.)

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Objectives: To describe the prevalence of asthma and asthma variants in schoolchildren from Recife in 2002, and to compare these data with data from ; to analyze the relationship between maternal schooling and the presence of asthma or worsening asthma; and to evaluate the diagnostic accuracy of the yearly prevalence of wheezing as an asthma indicator.Methods: Cross-sectional study. A probabilistic sample of 3,086 and 2,774 13-and 14-year-old students answered a written questionnaire in 1994-95 and 2002, as part of the International Study of Asthma and Allergies in Childhood.Results: The following prevalence rates were observed in 1994-95 and 2002, respectively: cumulative prevalence of referred asthma: 21 vs 18.2%; cumulative prevalence of wheezing: 39 vs 38%; yearly prevalence of wheezing: 19.7 vs 19.4%; yearly prevalence of night cough: 31 vs 38%; yearly prevalence of exercise-induced wheezing: 20.6 vs 23.8%. The yearly prevalence of asthma attacks was 16.3 vs 15.2% for 1 to 3 attacks; 2.7 vs 1.2% for 4 to 12 attacks; and 1 vs 0.4% for more than 12 attacks. The yearly prevalence of attacks that disturbed sleep was 13 and 10.3%. The yearly prevalence of attacks with compromised speech was 4.8 and 4.1%. Higher levels of maternal schooling were related to higher cumulative prevalence of referred asthma and to cumulative and yearly prevalence of wheezing. Conclusions:The prevalence of asthma and its severe forms is high in teenager students in Recife. It is also related to higher levels of maternal schooling. IntroductionAsthma is a chronic inflammatory disease of the airways, predominantly eosinophilic, which results in a recurrent obstruction of the airflow, reversible spontaneously or in response to therapy. Atopic disease is the most frequently identified predisposing factor. 1-4 It constitutes a public health problem, as much for its prevalence as for its morbidity. [5][6][7][8][9] During phase one of ISAAC, (International Study of Asthma and Allergies in Childhood), 463,801 13 and 14 year-old adolescents and 257,800 children aged 6 and 7 years of age, from 56 countries were studied by questionnaire. The average cumulative prevalence of asthma reported was 11.3%, varying from 1.4 to 30.4%. Brazil was eighth in the ranking. 5 This project investigated 20,544 schoolchildren aged 13-14 years and 13,604 aged 6-7 years, in Curitiba, Itabira, Recife, Salvador, São Paulo, Porto Alegre and Uberlândia. In the first group, the reported prevalence of asthma was 9.8% for males and 10.2% for females. In the 6-7 year-old group, it was 7.3 and 4.9%, respectively. 6 In Recife, the ISAAC data from 1994-95 for 1,410 schoolchildren aged 6 and 7 years and 3,086 pupils aged 13 and 14 years old, demonstrated a reported asthma prevalence of 20.4 and 19.7%, respectively. 7 Further Brazilian studies using methods similar to those of the ISAAC project have also been performed recently. In schoolchildren from Uberlândia aged 6 and 7 In addition to the point-by-point assessments, the comparison of different periods allows ...

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Section: Discussioncontrasting

confidence: 48%

“…In Melbourne, the prevalence of reported asthma increased for the 7 year-old subset from 19.1 to 46% between 1964 and 1990. 16 Shaw et al, 17 studying adolescents in New Zealand observed an increase in the prevalence of reported asthma or wheezing from 26.2 to 34.0%, in the period from 1975 to 1989.…”

Section: Introductionmentioning

confidence: 99%

Asma em escolares do Recife - comparação de prevalências: 1994-95 e 2002

Britto

Bezerra

Brito

et al. 2004

J. Pediatr. (Rio J.)

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“…BRABÄCK et al [15], in a comparison of atopic sensitization and respiratory symptoms among Swedish and Polish school children, reported that children living in urban Sweden, as compared to urban Poland, were more frequently diagnosed as being asthmatic by a doctor, and had higher prevalences of positive skin-prick test reactions against mugwort, timothy, birch and cat. Several studies have indicated a rising trend in atopic diseases and asthma over time both in children [16][17][18][19][20][21] and adolescents [2,22,23]. Most authors suggest that this is not simply due to improved diagnostic trends.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of respiratory symptoms, bronchial hyperresponsiveness and atopy among adults: west and east Germany

Nowak

Heinrich²,

Jörres³

et al. 1996

Eur Respir J

215

118

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“…Dois estudos realizados com intervalo de 12 anos (1975 e 1987) identificaram aumento de 26,2% para 34% na prevalência de asmáticos entre adolescentes dessa população. Etnia, aumento do tabagismo materno e redução das infecções respiratórias durante a infância precoce foram apontados como possí-veis justificativas para o fato (20) . Já na Alemanha, um estudo avaliando crianças e adolescentes de duas cidades situadas no Oeste e no Leste encontrou prevalência maior de asmáticos na região ocidental do país.…”

Section: J Pneumol 27(5) -Set-out De 2001unclassified

Variação na prevalência de asma e atopia em um grupo de escolares de Porto Alegre, Rio Grande do Sul

et al. 2001

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Introdução: Considerável aumento na prevalência da asma e da atopia vem sendo mundialmente observado ao longo das últimas décadas, porém, em nosso país, os dados epidemiológicos ainda são insuficientes. Objetivo: Este estudo foi realizado a fim de determinar a prevalência de asma e atopia em um grupo de escolares e comparar tais dados com outros dois levantamentos previamente realizados em Porto Alegre, Rio Grande do Sul. Métodos: A prevalência de asma foi identificada através de um questionário aplicado a 855 alunos de cinco escolas de Porto Alegre. Foram considerados atópicos aqueles escolares que, submetidos a testes cutâneos, apresentaram pelo menos uma reação cutânea positiva. Assinatura do termo de consentimento pós-informação de um dos pais foi exigida para a realização dos testes cutâneos. Resultados: Foi identificada prevalência de 42,5% de asma cumulativa e 22% de asma ativa, com predominância nas meninas. Atopia foi identificada em 50,1% da amostra. Tais resultados foram significativamente superiores aos 6,7% (1980) ARTIGO ORIGINAL

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Increasing asthma prevalence in a rural New Zealand adolescent population: 1975-89.

Cited by 124 publications

References 7 publications

Asma em escolares do Recife - comparação de prevalências: 1994-95 e 2002

Asma em escolares do Recife - comparação de prevalências: 1994-95 e 2002

Prevalence of respiratory symptoms, bronchial hyperresponsiveness and atopy among adults: west and east Germany

Variação na prevalência de asma e atopia em um grupo de escolares de Porto Alegre, Rio Grande do Sul

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