European Radiology Experimental

Table 1 Patient characteristics and significant differences between the groups in patients with and without chronic obstructive pulmonary disease (COPD)

From: Right main pulmonary artery distensibility on dynamic ventilation CT and its association with respiratory function

Variable	With COPD	Without COPD	p-value
Number	18	19	–
Age	73.3 ± 5.9	68.0 ± 8.9	0.039*
Females/males	10/8	10/9	0.893
Body mass index	22.1 ± 3.3	24.4 ± 3.2	0.020*
Smoking index	784.3 ± 623.8	581.1 ± 602.5	0.284

^*p < 0.05

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