Table 9.

180 day follow-up CT potential covariate*

Variable	180 Day HRCT at TLC	Baseline and 180 Day HRCT at TLC	Baseline and 180 Day HRCT at RV
Target Lobe Atelectasis Score†		X	X
Lobar Exclusion†† (yes/no)	X

*These potential covariates apply only to the treatment arm and do not have a control arm subset.

^†Atelectasis Score is a continuous variable from 0 to 100% and is defined as the % volume change in the target lobe from baseline to 180 day follow-up.

^††Lobar Exclusion will be determined by the core lab radiologists and is defined as all airways into the target lobe are occluded by valves at day 180.