Data/hora: 04/06/2024 13:50:17

Provedor de dados: | 56
País: | Brazil
Título: | Reference values for lung function tests: I. Static volumes
Autores: | Neder,J.A.; Andreoni,S.; Castelo-Filho,A.; Nery,L.E.
Data: | 1999-06-01
Ano: | 1999
Palavras-chave: | Lung volumes; Pulmonary function tests; Pulmonary diseases.
Resumo: | Static lung volume (LV) measurements have a number of clinical and research applications; however, no previous studies have provided reference values for such tests using a healthy sample of the adult Brazilian population. With this as our main purpose, we prospectively evaluated 100 non-smoking subjects (50 males and 50 females), 20 to 80 years old, randomly selected from more than 8,000 individuals. Gender-specific linear prediction equations were developed by multiple regression analysis with total lung capacity (TLC), functional residual capacity (FRC), residual volume (RV), RV/TLC ratio and inspiratory capacity (IC) as dependent variables, and with age, height, weight, lean body mass and indexes of physical fitness as independent ones. Simpler demographic and anthropometric variables were as useful as more complex measurements in predicting LV values, independent of gender and age (R2 values ranging from 0.49 to 0.78, P&amp;lt;0.001). Interestingly, prediction equations from North American and European studies overestimated the LV at low volumes and underestimated them at high volumes (P&amp;lt;0.05). Our results, therefore, provide a more appropriate frame of reference to evaluate the normalcy of static lung volume values in Brazilian males and females aged 20 to 80 years.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000600006
Editor: | Associação Brasileira de Divulgação Científica
Relação: | 10.1590/S0100-879X1999000600006
Formato: | text/html
Fonte: | Brazilian Journal of Medical and Biological Research  v.32 n.6 1999
Fonte: | info:eu-repo/semantics/openAccess