Table 1.
Baseline characteristics of the two study groups
| Characteristic | ME/CFS (n = 18) | Controls (n = 15) | P‐value |
|---|---|---|---|
| Age (years; range) | 38 (21–49) | 34 (21–49) | 0.14 |
| Height (m) | 1.71 (0.08) | 1.69 (0.07) | 0.46 |
| Weight (kg) | 73 (13) | 63 (11) | 0.02 |
| BMI (kg/m2) | 25.2 (5.0) | 22.0 (3.2) | 0.03 |
| FVC (L) | 4.43 (0.57) | 4.41 (0.66) | 0.95 |
| FEV1 (L) | 3.51 (0.46) | 3.55 (0.56) | 0.83 |
| FEV1/FVC (%) | 79.4 (5.0) | 80.5 (6.0) | 0.56 |
| Predicted FVC (%) | 121 (17) | 121 (16) | 0.97 |
| Predicted FEV1 (%) | 111 (17) | 112 (15) | 0.88 |
| Hb day 1 (g/dL) | 13.2 (0.9) | 12.7 (0.8) | 0.19 |
| Hb day 2 (g/dL) | 12.5 (0.9) | 12.0 (0.8) | 0.18 |
Values are mean (SD) unless otherwise reported.