Skip to main content
. 2016 Mar 28;13(5):4266–4272. doi: 10.3892/mmr.2016.5057

Table I.

Demographic and clinical characteristics of patients with COPD (n=34) and healthy subjects (n=30).

Characteristic COPD patients Healthy subjects
Age, years 71.8±9.0 67.8±8.2
Gender (male/female), n 23/11 20/10
Smokers, n 20 17
FEV1, % 52.16±24.07a 104.10±14.73
FEV1/FVC, % 53.93±13.66a 81.03±7.00
a

P<0.01 vs. healthy subjects. Age, FEV1 and FVC data are presented as the mean ± standard deviation. COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 sec; FVC, forced vital capacity.