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 | |
|---|---|---|---|---|
| M:F (%) | 59:41 | 61:39 | 66:34 | |
| 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 (%) | 12.5 | 3.0 | 10.5 | |
| MI (%) | 10.1 | 3.0 | 2.6 | |
| CRP (mg/l) | ||||
| All subjects | 5.0 (1.5) | 2.0 (1.0) | 2.2 (1.0) | <0.001*‡ |
| Subjects with IHD excluded | 5.0 (1.5) | 2.0 (1.1) | 2.3 (1.1) | <0.001*‡ |
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).