Table 1

Mean (SD) characteristics of study group (n=71)

Age68.2 (7.8)
FEV1 (l)1.11 90.40)
FVC (l)2.63 (0.74)
PEF (l/s)2.82 (1.16)
FEV1/FVC (%)43.1 (13.6)
FEV1(%)39.8 (17.0)
Reversibility (%)9.09 (12.26)
Pao 2 (kPa)9.00 (1.00)
Paco 2 (kPa)5.87 (0.85)
Pack years44.6 (34.1)
Current smokers (%)37
  • FEV1 = forced expiratory volume in one second; FVC = forced vital capacity; PEF = peak expiratory rate; Pao 2, Paco 2 = arterial oxygen and carbon dioxide tensions.