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 | |
Tender nodes | .48 | |
Diarrhea | .37 | |
Unusual fatigue after exertion | .69 | .64 |
Muscle aches | .70 | .64 |
Joint pain | .54 | |
Feverishness | .28 | |
Chills | .52 | |
Unrefreshing sleep | .77 | .79 |
Sleeping problems | .65 | .70 |
Headaches | .43 | |
Memory problems | .62 | .66 |
Concentration | .59 | .67 |
Nausea | .40 | |
Stomach pain | .32 | |
Sinus problems | .51 | |
Shortness of breath | .41 | |
Sensitivity to light | .41 | |
Depression | .52 |