Quantitative CT: Associations between Emphysema, Airway Wall Thickness and Body Composition in COPD

Table 2

Spearman correlation coefficient between %LAA and AWT-Pi10 and markers of body composition.

	Men		Women
	%LAA	AWT-Pi10	%LAA	AWT-Pi10
Subjects without COPD
BMI	0.03	0.41^†	−0.10	0.32^†
FFMI	−0.02	0.23^†	−0.05	0.25^†
FMI	0.03	0.42^†	−0.10	0.27^†
Subjects with COPD
BMI	−0.40^†	0.33^†	−0.34^†	0.34^†
FFMI	−0.43^†	0.29^†	−0.39^†	0.37^†
FMI	−0.34^†	0.31^†	−0.30^†	0.32^†

BMI: body mass index, FFMI: fat-free mass index, FMI: fat mass index, AWT-Pi10: standardized airway wall thickness at an internal perimeter of 10 mm, %LAA: percentage low attenuation areas less than −950 HU. Significant correlation: ^∗𝑃<.05, ^†𝑃<.01.