Table 2: Symptom and Illness Severity Scores (from the PFRS Scale) for the CFS and Control Sample. Scores are the Group Means with s.e.m in Parenthesis. Higher Scores=Greater Symptom/Illness Severity

CFS (N=307) Controls (N=126) F, df, p
Symptoms:
Total Symptoms (n=28) 15.76 (0.32) 2.69 (0.28) 618.90, 1 426, 0.001
Fatigue Related Symptoms:
ED
Fatigue
CD
SS
47.80 (1.21)
62.90 (0.89)
46.89 (0.92)
53.27 (1.13)
32.51 (1.40)
23.05 (1.04)
23.58 (0.94)
23.51 (0.78)
53.56, 1 426, 0.001
679.10, 1 424, 0.001
226.50, 1 426, 0.001
269.20, 1 424, 0.001

ED = Emotional Distress; CD = Cognitive Difficulties; SS = Somatic Symptoms.