Table 1

 Demographic data and clinical characteristics of the study population

COPD patients(n = 88)Control smokers (S)(n = 33)Control non-smokers (NS)(n = 38)p value
IHD, ischaemic heart disease; MI, myocardial infarction.
Results are expressed as mean (SD). CRP values are expressed as geometric mean (SD).
p values not significant unless stated.
*COPD v control smokers (S). †Smokers (S) v non-smokers (NS). ‡COPD v non-smokers (NS).
M:F (%)59:4161:3966:34
Age (years)66 (9)62 (6)67 (7)<0.05*
<0.001†
BMI (kg/m2)27.04 (5.43)26.54 (5.63)28.94 (4.43)
Smoking (packs/year)53 (3)44 (2)5(6)<0.05*
<0.001†‡
IHD (%)12.53.010.5
MI (%)10.13.02.6
CRP (mg/l)
    All subjects5.0 (1.5)2.0 (1.0)2.2 (1.0)<0.001*‡
    Subjects with IHD excluded5.0 (1.5)2.0 (1.1)2.3 (1.1)<0.001*‡