Table 6.

Parameter estimates from multiple linear regression analyses for emphysema and airway quantitative imaging measurements (n = 127)

Variable	Comparison group or increase	Parameter estimate [95% confidence interval] (p-value)*
		Change in LAA%-950 (%)	Change in Pi10 (mm)
Intercept	–	− 4.7 [− 14.0, 4.5]	2.5 [1.7, 3.2]
Deployer	Control	2.9 [0.2, 5.7] (p = 0.04)	0.2 [− 0.03, 0.4] (p = 0.09)
Male	Female	− 0.4 [− 3.5, 2.6] (p = 0.78)	0.03 [− 0.2, 0.3] (p = 0.82)
Age	+ 1 year	0.02 [− 0.09, 0.1] (p = 0.72)	− 0.01 [− 0.02, − 0.002] (p = 0.02)
Smoking pack-years	+ 1 pack-year	0.04 [− 0.04, 0.1] (p = 0.35)	0.008 [0.002, 0.01] (p = 0.01)
BMI	+ 1 kg/m2	− 0.07 [− 0.3, 0.1] (p = 0.44)	0.02 [0.0003, 0.03] (p = 0.045)
TLV (inspiratory)	+ 1 L	2.2 [1.3, 3.1] (p < 0.0001)	− 0.07 [− 0.1, 0.004] (p = 0.07)

Bold values are statistically significant

*Results are the p-value from the F-test using a linear model with all covariates included at the same time