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. 2016 May 26;11:1105–1118. doi: 10.2147/COPD.S102222

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© 2016 Tse et al. This work is published and licensed by Dove Medical Press Limited

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Correlation between FEV₁ and various FOT parameters.

Notes: (A) FDep, (B) R6, (C) R20, (D) RAvr, (E) Fres, (F) X6, (G) X20, and (H) XAvr. ^*P<0.05.

Abbreviations: FDep, frequency dependence; FEV₁, forced expiratory volume in 1 second; FOT, forced oscillation technique; Fres, resonance frequency; R6, resistance at 6 Hz; R20, resistance at 20 Hz; RAvr, average resistance; X6, reactance at 6 Hz; X20, reactance at 20 Hz; XAvr, average reactance.