From: Psychometric properties of the CDC Symptom Inventory for assessment of Chronic Fatigue Syndrome
Symptom | Corrected item to total correlations | |
---|---|---|
 | Total score | Short-form score |
Sore throat | .43 | Â |
Tender nodes | .48 | Â |
Diarrhea | .37 | Â |
Unusual fatigue after exertion | .69 | .64 |
Muscle aches | .70 | .64 |
Joint pain | .54 | Â |
Feverishness | .28 | Â |
Chills | .52 | Â |
Unrefreshing sleep | .77 | .79 |
Sleeping problems | .65 | .70 |
Headaches | .43 | Â |
Memory problems | .62 | .66 |
Concentration | .59 | .67 |
Nausea | .40 | Â |
Stomach pain | .32 | Â |
Sinus problems | .51 | Â |
Shortness of breath | .41 | Â |
Sensitivity to light | .41 | Â |
Depression | .52 | Â |