Skip to main content
. 2017 Nov 17;96(46):e8543. doi: 10.1097/MD.0000000000008543

Figure 5.

Figure 5

Spearman correlation analysis of MMEF75%–25%pred and IOS parameters. (A) Z5%pred (r = −0.439∗∗); (B) R5%pred (r = −0.354∗∗); (C) R20%pred (r = −0.108); (D) (R5-R20)%R5∗100 (r = −0.489∗∗); (E) X5 (r = 0.569∗∗); (F) Fres (r = −0.510∗∗); (G) Ax (r = −0.540∗∗). Ax = reactance area, Fres = frequency response, IOS = impulse oscillometry system, MMEF75%–25% = maximal mid expiratory flow, %pred = of the predicted value, R20 = resistance at 20 Hz, R5 = resistance at 5 Hz, X5 = reactance at 5 Hz, Z5 = total respiratory impedance.