| Characteristic | Control (n = 16) mean (SD) | CFS/ME patients (n = 16) mean (SD) | MS patients (n = 11) mean (SD) |
| Age | 50.06 (11.846) | 49.88 (9.542) | 57.82 (11.990) |
| WBC | 5.56 × 106 (1.602) | 5.17 × 106 (1.552) | 7.53 × 106 (1.161) |
| Gender | Control (n = 16) N (%) | CFS/ME patients (n = 16) N (%) | MS patients (n = 11) N (%) |
| Female | 8 (50.0%) | 11 (68.8%) | 8 (72.7%) |
| Male | 7 (43.8%) | 5 (31.3%) | 3 (27.3%) |