Valores de referência para espirometria em crianças de 6 a 12 anos da cidade de Porto Alegre, Brasil

• Ano de defesa: 2007
• Autor(a) principal: Melo Júnior, Hilário Teixeira de
• Orientador(a): Jones, Marcus Herbert
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Pontifícia Universidade Católica do Rio Grande do Sul; Porto Alegre
• Palavras-chave em Português: MEDICINA; TESTES DE FUNÇÃO RESPIRATÓRIA; PEDIATRIA; ESPIROMETRIA; CRIANÇAS
• Link de acesso: http://hdl.handle.net/10923/4740

Introduction: Many factors as age, puberty, gender and race, influence spirometric values of reference obtained in different populations. It is suggested that each place where tests of pulmonary function are carried out have to generate is own reference values. Aim of the study: To generate reference values for spirometry in children aged 6 to 12 years in Porto Alegre. Methods: Healthy children were recruited in two public schools in Porto Alegre. Spirometry was performed in the school and the data was used to generate predicted equations for all lung function parameters. The generated equations were compared to other equations in use in Brazil by the Friedman Rank’s TestResults: Of the 258 children who had participated of the study, 109 had not obtained reproducible curves and 52 had been excluded. The analysis was made in the remaining group of 97 individuals. The predicted equations were created using standing height as the sole independent variable in the multilinear regression model. The Friedman Rank test showed a significant difference between the reference equations obtained in the present study and other national and foreign equations currently used in Brazil, presenting predicted values 13 to 23% higher. Conclusions: Predicted equations for children 6 to 12 years were generated and a linear equation was proposed using standing height as the independent variable. These equations generate from children living in Porto Alegre are significantly different from other published equations in Brazil. This finding confirms the recommendation of that each lung function laboratory must produce its own reference values for the spirometry parameters.