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Correlation of ΔSpO2 with 6MWD and DDR.
Notes: ΔSpO2 was calculated by subtracting the values at baseline from those immediately after walking for 6 minutes. Spearman’s correlation coefficients and P-values are shown.
Abbreviations: ΔSpO2, change in SpO2 values; 6MWD, 6-minute walk distance; DDR, desaturation distance ratio; SpO2, peripheral oxygen saturation.
