Table 2.

Five oscillometric parameters selected by MIL and RFE

	Control group versus patients with sclerosis and normal spirometry (CGvsPSNS)	Control group versus patients with sclerosis and altered spirometry (CGvsPSAS)
MIL	Xm, R0, S, Rm, Cdin	fr, R0, Rm, Zrs, Cdyn
RFE	fr, R0, Rm, Zrs, Cdin	Fr, Xm, Rm, Zrs, Cdin

fr: resonance frequency; X_m: mean respiratory reactance; R₀: respiratory resistance extrapolated at 0 Hz; S: slope of the linear relationship of resistance versus frequency; R_m: mean respiratory resistance; Zrs: absolute value of respiratory impedance in 4 Hz; Cdyn: respiratory system dynamic compliance