6MWD, m | 349 (302–397) | 315 (243–387) | 313 (244–382) | 312 (251–372) | 0.7029 | NA |
Resting SpO2, % | 97 (97–98) | 97 (97–99) | 98 (97–99) | 96 (95–97)* | 0.2191 | NA |
Minimum SpO2, % | 92 (89–94) | 92 (88–95) | 94 (90–97) | 87 (84–90) | 0.0129 | Both different from ILD and Neither |
Drop in SpO2, % | 6 (3–8) | 5 (1–8) | 4 (1–7) | 9 (7–12) | 0.0633 | NA |
FVC% | 64 (58–69) | 96 (87–106)** | 91 (83–99) | 62 (55–69) | < 0.0001 | ILD and Both different from PAH and Neither |
DLCO% | 44 (37–51)*** | 58 (46–70)† | 62 (52–72) | 37 (28–46)†† | 0.0017 | Both different from PAH, ILD, and Neither; ILD different from Neither |