Bronchodilator response cut-off points and FEV 0.75 reference values for spirometry in preschoolers
نویسندگان
چکیده
منابع مشابه
Bronchodilator response cut-off points and FEV 0.75 reference values for spirometry in preschoolers
Objective: To determine the cut-off points for FEV1, FEV0.75, FEV0.5, and FEF25-75% bronchodilator responses in healthy preschool children and to generate reference values for FEV0.75. Methods: This was a cross-sectional community-based study involving children 3-5 years of age. Healthy preschool children were selected by a standardized questionnaire. Spirometry was performed before and after...
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OBJECTIVES Reference values for lung function tests differ in samples from different countries, including values for preschoolers. The main objective of this study was to derive reference values in this population. METHODS A prospective study was conducted through a questionnaire applied to 425 preschool children aged 3 to 6 years, from schools and day-care centers in a metropolitan city in B...
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The aim of the present study was to provide new spirometry reference equations in a sample of the Brazilian population for the following parameters: forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), FEV1/FVC ratio, peak of expiratory flow (PEF), forced expiratory flow at 50% (FEF50%), 75% average vital capacity (FEF25-75%), and average forced expiratory flow time (FEFT)....
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ژورنال
عنوان ژورنال: Jornal Brasileiro de Pneumologia
سال: 2016
ISSN: 1806-3713
DOI: 10.1590/s1806-37562015000000216