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. 2023 Jun 9;15:449–464. doi: 10.2147/NSS.S409883

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© 2023 Howarth et al.

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Coefficients plot of multivariate regression effects for one unit change in FVC, FEV₁ & FEV₁/FVC.

Abbreviations: AHI; apnoea-hypopnoea index; CPAP, Continuous positive airway pressure FEV₁, Forced expiratory volume in 1 s; FVC, Forced vital capacity; N1/2/3, Non-REM stage 1/2/3; RAI, Respiratory arousal index; REM, Rapid eye movement; SAI, Spontaneous arousal index; SpO₂, oxygen saturation; TAI, Total arousal index; TST, Total sleep time, WASO, Wake after sleep onset.