Table 1.
Variables | Systemic Sclerosis | Controls | p value | |
sPAP < 35 mmHg | sPAP ≥ 35 mmHg | |||
Participants, No. | 20 | 20 | 13 | |
Female/Male | 16/4 | 17/3 | 10/3 | |
Age, ys | 55.0 ± 14.0 | 58.4 ± 10.7 | 55.3 ± 13.4 | 0.379 |
FEV1 (%predicted) | 83.9 ± 12.5 | 87.8 ± 18.6 | 99.6 ± 5.3 | 0.425 |
FVC (%predicted) | 84.1 ± 14.3 | 86.6 ± 22.2 | 99.0 ± 3.2 | 0.570 |
FEV1/FVC | 85.6 ± 9.4 | 85.5 ± 6.9 | 76.5 ± 2.9 | 0.882 |
DLCO (%predicted) | 89.9 ± 13.4 | 60.0 ± 21.8 | 101.0 ± 4.0 | <0.0001 |
DLCO/VA (%predicted) | 88.6 ± 19.9 | 77.6 ± 16.3 | 102.3 ± 3.5 | 0.033 |
PO2 (mmHg) | 81.8 ± 5.0 | 75.5 ± 12.3 | 94,8 ± 1.9 | 0.561 |
PCO2 (mmHg) | 38.6 ± 3.5 | 37.7 ± 5.8 | 38.8 ± 1.2 | 0.942 |
* Values are given as the mean ± SD unless otherwise indicated. sPAP: systolic pressure in the pulmonary artery, FEV1: Forced Expiratory Volume in 1 sec, FVC: Forced expiratory Vital Capacity, DLCO: Diffusing Capacity of the lungs for Carbon Monoxide, VA: alveolar volume.