Table 5. Predictors of severe exercise-induced gas exchange impairment in sarcoidosis according to DLco or ∆SpO2-6MWT.
| Variable | Normal DLco (n=50) | Decreased DLco (n=80) | Normal ∆SpO2-6MWT (n=95) | Increased ∆SpO2-6MWT (n=35) |
|---|---|---|---|---|
| Peak PaO2 >60 mmHg (n=114) | 50 (38%) | 64 (50%) | 93 (71%) | 21 (16%) |
| Peak PaO2 <60 mmHg (n=16) | 0 (0%) | 16 (12%) | 2 (1%) | 14 (11%) |
Data are presented as the number of n=130 patients. 6MWT, 6-minute walk test; ∆SpO2-6MWT, oxygen desaturation during the 6MWT; DLco, diffusing capacity of the lung for carbon monoxide; PaO2, partial pressure of oxygen desaturation.