From: Abstracts from the 2018 Respiratory Effectiveness Group Summit
Biometrics p/χ2 | Healthy Group, n=36 | Disease Group, n=11 | |||||
---|---|---|---|---|---|---|---|
 Age (mean years ± sem) | 50 | ± | 3 | 50 | ± | 5 | NS |
 Sex (M : F) | 9 | : | 27 | 2 | : | 9 | NS |
 BMI (kg/m2) | 26 | ± | 1 | 30 | ± | 3 | NS |
 Smoking History |  |  |  |  |  |  |  |
  Pack-Years | 6 | ± | 2 | 9 | ± | 5 | NS |
  Current : Ex | 12 | : | 24 | 4 | : | 7 | NS |
Patient Reported Outcomes | |||||||
 COPD Assessment Test (CAT) | 6.22 | ± | 1.05 | 12.64 | ± | 2.90 | NS |
 mMRC Dyspnea Scale (mMRC) | 0.25 | ± | 0.07 | 0.73 | ± | 0.27 | NS |
 Asthma Control Test (ACT) | 0.67 | ± | 0.30 | 5.00 | ± | 1.70 | <0.005 |
 Chronic bronchitis (Yes : No) | 2 | : | 34 | 2 | : | 9 | NS |
Spirometry | |||||||
 FEV1 (L) | 3.00 | ± | 0.21 | 2.24 | ± | 0.15 | NS |
 FEV1 (% predicted) | 106 | ± | 3 | 83 | ± | 4 | <0.005 |
 FVC (L) | 3.74 | ± | 0.24 | 3.19 | ± | 0.18 | NS |
 FVC (% predicted) | 112 | ± | 3 | 100 | ± | 6 | NS |
 FEV1/FVC (%) | 80 | ± | 1 | 71 | ± | 4 | <0.05 |
 MMEF (L/s) | 2.92 | ± | 0.25 | 1.76 | ± | 0.26 | NS |
 MMEF (% predicted) | 81 | ± | 4 | 52 | ± | 7 | <0.05 |
Oscillometry | |||||||
 R5 (median (IRQ) cmH2O/L/s) | 3.64 | (2.82, 4.25) | 4.79 | (4.05, 0.87) | <0.05 | ||
 R5-20 (cmH2O/L/s) | 0.39 | (0.14, 0.78) | 1.10 | (0.80, 1.70) | <0.05 | ||
 X5 (cmH2O/L/s) | -1.44 | (-1.72, -1.14) | -2.04 | (-3.28, -1.20) | <0.05 | ||
 Fres (Hz) | 16 | (13, 20) | 25 | (21, 28) | NS | ||
 AX (cmH2O/L) | 6 | (5, 11) | 16 | (13, 28) | <0.001 |