Table 1

Baseline characteristics of chronic obstructive pulmonary disease patients

Subjects n36
Age yrs69.3±7.3
M/F n22/14
Smoking habits n#8/22/6
Pack-years39.8±18.3
BMI25.3±6.1
Corticosteroid therapy
 Oral13 (36.1)
 Inhaled12 (33.3)
FEV1 % pred on admission41.7±17.1
Microbial growth in sputum13 (36.1)
Severity of acute exacerbation
 Mild9 (25.0)
 Moderate10 (27.7)
 Severe17 (47.2)
  • Data are presented as mean±sd or n (%) unless otherwise stated

  • M: male

  • F: female

  • BMI: body mass index (weight (kg)/height2 (cm))

  • FEV1: forced expiratory volume in one second. #: smokers/ex-smokers/nonsmokers