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Defining and grading an obstructive ventilatory defect (OVD): ‘FEV(1)/FVC lower limit of normal (LLN) vs. Z-score’ and ‘FEV(1) percentage predicted (%pred) vs. Z-score’
An obstructive ventilatory defect (OVD) is defined by a low forced expiratory volume/‘forced/slow’ vital capacity (FEV(1)/FVC) (e.g. <lower limit of normal (LLN)). However, the LLN can be estimated either by the 90% confidence interval (or the 90th percentile) (American Thoracic and the European...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Taylor & Francis
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6022234/ https://www.ncbi.nlm.nih.gov/pubmed/29927708 http://dx.doi.org/10.1080/19932820.2018.1487751 |