Table 1

Description of background, characteristics and lung functions across healthy, asthmatic and smokers. mean and standard deviation (SD)

Background and characteristicHealthy
(n=168)
Asthma (n=16)Smokers
(n=17)
All
(n=200)
MeanSDMeanSDMeanSDMeanSD
Age (year)53.17.353.57.255.15.153.27.2
Sex, female (%)51.275.058.853.5
BMI (kg/m2)26.83.628.45.526.73.026.93.7
FEV1 (% pred)95.112.985.213.794.711.094.413.4
FVC (% pred)96.212.093.010.798.310.096.211.9
FEV1/FVC0.780.050.720.080.760.060.770.05
  • BMI, body mass index; FEV1, forced expiratory volume in one second; FVC, forced vital capacity.