Peak expiratory flow is not a quality indicator for spirometry: peak expiratory flow variability and FEV1 are poorly correlated in an elderly population

• Published in: Chest Vol. 131; no. 5; p. 1494
• Main Authors: Hegewald, Matthew J, Lefor, Michael J, Jensen, Robert L, Crapo, Robert O, Kritchevsky, Stephen B, Haggerty, Catherine L, Bauer, Douglas C, Satterfield, Suzanne, Harris, Tamara
• Format: Journal Article
• Language: English
• Published: United States 01.05.2007
• Subjects: Age Factors; Aged; Bronchospirometry; Female; Forced Expiratory Volume - physiology; Humans; Lung Diseases - diagnosis; Lung Diseases - physiopathology; Male; Peak Expiratory Flow Rate - physiology; Regression Analysis; Reproducibility of Results

Peak forced expiratory flow (PEF) and FEV(1) are spirometry measures used in diagnosing and monitoring lung diseases. We tested the premise that within-test variability in PEF is associated with corresponding variability in FEV(1) during a single test session. A total of 2,464 healthy adults from th...