Table 5.

Adjusted comparisons of air trapping quantitative imaging parameters (n = 107)

	Adjusted#
	Difference in means	95% Confidence interval	p-value
E/I TLV ratio
Deployer vs control	− 0.11	− 0.16, − 0.06	< 0.0001
Definite vs control	− 0.11	− 0.16, − 0.05	0.0006+
Possible vs control	− 0.11	− 0.16, − 0.06	0.0003+
Definite vs possible	0.001	− 0.05, 0.05	1.00+
E/I MLD ratio
Deployer vs control	− 0.05	− 0.08, − 0.02	0.0008
Definite vs control	− 0.05	− 0.09, − 0.02	0.004+
Possible vs control	− 0.05	− 0.08, − 0.01	0.01+
Definite vs possible	− 0.008	− 0.04, 0.02	0.83+
LAA%-856 (%)
Deployer vs control	− 1.1	− 4.4, 2.2	0.51
Definite vs control	− 1.0	− 4.7, 2.7	0.86+
Possible vs control	− 1.2	− 4.7, 2.4	0.79+
Definite vs possible	0.17	− 2.9, 3.3	0.99+

Bold values are statistically significant

^#All measures were adjusted for sex, age, smoking pack-years, and body mass index. LAA%-950, Pi10, and LAA%-856 are also adjusted for total lung volume (inspiratory or expiratory as appropriate)

⁺Tukey p-value for multiple comparisons adjustment