From: Increased respiratory drive relates to severity of dyspnea in systemic sclerosis
V’E/P0.1 < 8 l/min/cmH2O N = 28 | V’E/P0.1 ≥ 8 l/min/cmH2O N = 45 | P value* | |
---|---|---|---|
Age (yrs) | 54.4 (11.8) | 50.9 (14.4) | 0.25 |
Female sex (%) | 26 (93) | 37 (82) | 0.11 |
Height (cm) | 164 (7.2) | 171 (8.7) | 0.002 |
Weight (kg) | 67.1 (15.3) | 69.8 (12.8) | 0.43 |
BMI (cm/kg2) | 24.8 (5.4) | 23.9 (3.7) | 0.48 |
lcSSc subtype (%) | 10 (36) | 34 (76) | 0.02 |
PaO2 (kPa) | 10.4 (0.36) | 10.6 (0.29) | 0.58 |
PaCO2 (kPa) | 5.31 (0.41) | 5.18 (0.43) | 0.25 |
FVC (% pred) | 92.1 (19.9) | 111.1 (19.7) | 0.001 |
DLCOc SB (% pred) | 57.7 (15.8) | 70.7 (15.1) | 0.001 |
TLC-He (% pred) | 81.5 (16.6) | 95.4 (13.5) | <0.001 |
FRC/TLC (%) | 53 (17) | 56 (7) | 0.23 |