Results are mean values (SD), except for gender. For 1-way ANOVA, p<0.05 is significant. Superscript letters indicate significant difference(s) between groups.
| Variable | Group A (N=25) | Group B (N=130) | Group C (N=14) | Group D (N=226) | 1-way ANOVA (p-value) |
| Gender Male (%) | 19 (76) | 79 (61) | 9 (64) | 129 (56) | 0.300 |
| Age (Mean years) | 70 (7) | 68 (8) | 67 (7) | 67 (8) | 0.070 |
| BMI (kg/m2) | 26.9 (4.1) | 28.1 (5.1)C | 24.2 (3.6)B | 26.8 (5.7) | 0.030 |
| FEV1% predicted | 67.6 (8.7)C,D | 64.0 (8.5)C,D | 47.3 (12.8)A,B | 47.3 (15.5)A,B | <0.001 |
| FEV1 (L) | 1.7 (0.4)C,D | 1.6 (0.5)C,D | 1.3 (0.3)A,B | 1.3 (1.9)A,B | <0.001 |
| Smoking pack years | 45 (24) | 47 (25) | 34 (16) | 48 (27) | 0.200 |
| Fibrinogen (g/L) | 3.4 (0.9) | 3.33 (0.9)D | 3.51 (0.9) | 3.66 (0.9)B | 0.008 |
| QMVC (Kg) | 37.1 (10.8)D | 32.4 (11.4)D | 36.4 (10.4)D | 29.2 (10.3)A,B,C | <0.001 |
| QMVC/BMI | 1.4 (0.4)B,D | 1.2 (0.4)A,C | 1.5 (0.4)B,D | 1.1 (0.4)A,C | <0.001 |
| 6MWD (m) | 441(106)D | 379 (110)D | 440 (75)D | 313 (121)A,B,C | <0.001 |
| APWV (m/s) | 10.6 (2.7) | 10.2 (2.7) | 9.4 (2.2) | 10.3 (2.8) | 0.600 |