Number of patients | FSS<5 | FSS>5 | p Value | |
---|---|---|---|---|
Age (second control) | 92 | 33.6 (7.9) | 35.8 (6.9) | 0.17 |
Duration of CFS (years, mean) | 90 | 10.1 (3.1) | 12.1 (4.7) | 0.028 |
Arthralgia | 90 | 7 (19) | 31 (57) | <0.001 |
Myalgia | 90 | 11 (31) | 41 (76) | <0.001 |
Headache | 90 | 11 (31) | 35 (65) | 0.001 |
Sleeping disturbances | 90 | 9 (25) | 37 (69) | <0.001 |
Depression | 90 | 4 (11) | 20 (37) | 0.006 |
Concentration problems | 90 | 14 (39) | 43 (80) | <0.001 |
Memory problems | 90 | 12 (33) | 38 (70) | 0.001 |
Sore throat | 90 | 12 (33) | 22 (41) | 0.48 |
Tender cervical lymph nodes | 90 | 6 (17) | 24 (44) | 0.006 |
CFS, chronic fatigue syndrome; FSS, Fatigue Severity Scale.