Table 5. Change in imaging findings between scans.

	Deceased (n = 6)	Survivor (n = 19)	p value
Subgroup age (years)*	67.7 ± 16.5	57.3 ± 14.0	0.2
Subgroup sex (male)	4 (67%)	14 (74%)	>0.9
Time between scans (days)*	5.3 ± 1.2	5.1 ± 2.2	0.7
Nonparenchymal Findings
Change in pulmonary artery diameter*	0.42 ± 0.52	0.02 ± 0.33	0.1
Development of pleural effusion	2/4	0/15	0.04
Development of mediastinal or hilar lymphadenopathy	4/5	4/15	0.1
Development of bronchiectasis	2/4	2/19	0.1
Lung Parenchyma
Change in total lung severity score*	10.2 ± 5.5	3.1 ± 7.9	0.03
Total lung severity score on CT*	20.2 +/- 2.7	14.1 +/- 6.8	0.004
Lower lung zone severity score*	12.7 ± 2.5	9.0 ± 3.8	0.02

*Two tailed unpaired Student’s t test with Welch correction. Otherwise, Fischer’s exact test.