Low-dose CT measurements of airway dimensions and emphysema associated with airflow limitation in heavy smokers: a cross sectional study

Table 2 Airway wall thickness in subjects with and without respiratorysymptoms and in current and former smokers

	n	AWT_3.5(mm)		n	AWT_3.5(mm)	p-value
CMH	146	0.62 (0.49-0.80)	no CMH	346	0.56 (0.44-0.71)	0.002*
Cough	161	0.64 (0.50-0.84)	no cough	331	0.54 (0.43-0.70)	<0.001*
Dyspnea	140	0.65 (0.51-0.80)	no dyspnea	352	0.54 (0.43-0.69)	<0.001*
Wheezing	125	0.66 (0.52-0.85)	no wheezing	367	0.53 (0.43-0.70)	<0.001*
CMH and/or cough	201	0.63 (0.49-0.79)	no CMH or cough	291	0.53 (0.43-0.70)	<0.001*
Dyspnea and/or wheezing	181	0.66 (0.52-0.83)	no dyspnea or wheezing	311	0.53 (0.42-0.67)	<0.001*
Cough, CMH, dyspnea and wheezing	49	0.69 (0.51-0.89)	no cough, CMH, dyspnea or wheezing	239	0.52 (0.41-0.66)	<0.001*
Current smoking	291	0.58 (0.45-0.75)	Former smoking	201	0.56 (0.43-0.71)	0.113

Data presented as median (interquartile range) values.
Definition of abbreviations: AWT_3.5 = airwaywall thickness at 3.5 mm internal lumen size; CMH = chronicmucus hypersecretion.

ISSN: 1465-993X