PFT Results | Patients with pSS, n = 51 | Predicted Values, Absolute No. | p Values, pSS vs Predicted | |
---|---|---|---|---|
Absolute No. | % of Predicted | |||
VC, l | 3.3 ± 0.8 | 93 ± 14 | 3.6 ± 0.9 | 0.001 |
TLC, l | 5.6 ± 1.0 | 100 ± 13 | 5.6 ± 0.7 | 0.750 |
RV, l | 2.3 ± 0.5 | 114 ± 23 | 2.0 ± 0.4 | 0.0001 |
RV/TLC ratio | 0.41 ± 0.1 | 115 ± 18 | 0.36 ± 0.1 | 0.0001 |
FEV1, l | 2.3 ± 0.6 | 86 ± 15 | 2.7 ± 0.7 | 0.0001 |
FEV1/VC ratio | 0.69 ± 0.08 | 93 ± 10 | 0.75 ± 0.03 | 0.0001 |
DLCO, mmol/min kPa | 6.5 ± 1.9 | 92 ± 18 | 7.0 ± 1.6 | 0.002 |
DLCO, < 80% of predicted, n (%) | 12 (24) | NA | NA | |
COPD, n (%) | 21 (41) | NA | NA | |
Mild | 61 | NA | NA | |
Moderate | 39 | NA | NA | |
Severe | 0 | NA | NA | |
Clinically significant reversibility, n (%) | 2 (4) | NA | NA |