Demographic and physiology results
| Variable | IPF (n = 30) | COPD (n = 31) | P (t-test/χ2 between IPF/COPD) | Control (n = 26) | P (t-test/χ2 between IPF/control) |
|---|---|---|---|---|---|
| Gender (% male) | 67% | 52% | 0.232 | 54% | 0.327 |
| Age | 75.6 (5.8) | 66.6 (7.1) | <0.001 | 62.9 (9.6) | <0.001 |
| BMI | 25.4 (3.6) | 28.4 (5.2) | 0.011 | 27.4 (5.3) | 0.111 |
| Pack years smoking | 15.1 (18.9) | 41.6 (22.8) | <0.001 | 29.2 (16.1) | 0.005 |
| <12 years full-time education | 33.3% | 77.4% | 0.001 | 80.8% | <0.001 |
| MoCA | 25.2 (2.6) | 25.5 (2.8) | 0.649 | 27.2 (2.2) | 0.005 |
| HADS | 7.6 (5.0) | 9.5 (5.4) | 0.150 | 6.6 (4.8) | 0.457 |
| FEV1 (%) | 89.6 (18.4) | 57.1 (18.7) | <0.001 | 99.6 (19.2) | 0.052 |
| FVC (%) | 88.1 (24.4) | 86.7 (20.1) | 0.805 | 110.3 (19.0) | 0.001 |
| Ratio | 0.8 (0.07) | 0.54 (0.13) | <0.001 | 0.69 (0.28) | 0.036 |
| DLCO (%) | 51.7 (15.1) | N/A | N/A | ||
| So2 (%) | 94.7 (1.9) | N/A | N/A |
IPF – Idiopathic Pulmonary Fibrosis, COPD – Chronic Obstructive Pulmonary Disease, BMI – Body Mass Index, MoCA – Montreal Cognitive Assessment, HADS – Hospital Anxiety and Depression Scale, FEV1 – forced expiratory volume in 1 second, FVC – forced vital capacity, DLCO – diffusing capacity for carbon monoxide, So2 – Oxygen saturations