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 autocorrelated. The purpose of this study was to describe the correlation structure in time series of FEV1 measurements....
Read the complete abstract on PubMedTopics
Share this publication in a Topic to start or enrich a Post.