Table S1.
The results of ultrasonography measurements of the right quadriceps, questionnaires and 6MWD in the study population
| Variables | Non-COPD (n=21) | GOLD I (n=21) | GOLD II (n=22) | GOLD ≥III (n=7) |
|---|---|---|---|---|
| SFT, cm | 11.6±4.09 | 13.52±6.30 | 11.21±4.25 | 10.26±3.88 |
| QMT, cm | 30.57±7.07 | 29.03±8.44 | 25.09±6.28 | 17.41±5.04a,b |
| RFcsa, cm2 | 7.07±1.78 | 6.84±2.67 | 5.63±1.73 | 3.99±1.16a,b |
| EI | 121.40±8.80 | 130.50±14.25a | 132.40±15.88a | 144.30±6.50a,b |
| PCS | 54.95±4.41 | 51.38±9.82 | 46.45±9.22a | 38.29±7.74a,b |
| MCS | 51.05±10.2 | 52.90±6.89 | 51.59±9.31 | 46.43±14.06 |
| FACITF | 43.76±5.74 | 45.24±6.61 | 39.27±9.25 | 31.57±12.51a,b |
| 6MWD, m | 628.90±81.77 | 612.10±91.67 | 547.40±98.70a | 433.50±66.90a,b |
Notes:
a
Compared with non-COPD.
b
Compared with GOLD I. Data presented as mean ± standard deviation.
Abbreviations: 6MWD, 6-minute walk distance; EI, echo intensity; FACITF, functional assessment of chronic illness therapy fatigue; GOLD, Global Initiative for Chronic Obstructive Lung Disease; MCS, mental component summary; PCS, physical component summary; QMT, quadriceps muscle thickness; RFcsa, rectus femoris cross-sectional area; SFT, subcutaneous fat thickness.