Long-range correlations of serial FEV1 measurements in emphysematous patients and normal subjects.

doi:10.1152/jappl.1998.85.1.259

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Article

Long-range correlations of serial FEV1 measurements in emphysematous patients and normal subjects.

Journal of applied physiology (Bethesda, Md. : 1985) - 1 Jul 1998

Dirksen A, Holstein-Rathlou N H, Madsen F, Skovgaard L T, Ulrik C S, Heckscher T, Kok-Jensen A

Abstract excerpt

In obstructive lung disease the annual change in lung function is usually estimated from serial measurements of forced expiratory volume in 1 s (FEV1). Frequent measurements in each patient may not improve this estimate because data are not statistically independent; i.e., the measurements are au...

Topics

Adult
Algorithms
Female
Forced Expiratory Volume
Fourier Analysis
Humans
Male
Middle Aged
Phenotype
Pulmonary Emphysema
Spirometry
alpha 1-Antitrypsin Deficiency

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