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. 2013 Feb 15;8(2):e56868. doi: 10.1371/journal.pone.0056868

Table 3. Linear univariate regression analysis investigating difference in LCI between the two systems.

R2
Difference in breath number 0.242
zFEV1 0.129
FRCpleth percent predicted 0.097
Difference in tidal volume 0.001
Trapped Gas (FRCpleth−FRCSF6) 0.147