Table 1.
Questionnaires for patient symptom assessment.
| Questionnaire | Abbreviation | Summary | Reference |
|---|---|---|---|
| The DePaul symptom questionnaire | DSQ | To determine frequency and severity of ME/CFS symptoms. Utilized in the Canadian consensus criteria; where patients who meet ≥5 of the six criteria are considered to have ME/CFS.17,18 | 19 |
| Short Form (36) health survey | SF-36 | Lower scores indicate higher levels of fatigue and disability (Scale 0–100). | 20 |
| Multidimensional fatigue inventory | MFI | 20-item scale evaluating five dimensions of fatigue. Higher scores represent higher levels of fatigue. | 21 |
| The American College of Rheumatology preliminary diagnostic criteria for fibromyalgia and measurement of symptoms severity | WPI SSS | To evaluate widespread pain index (WPI) and symptoms severity of score (SSS). To fulfil the diagnosis of fibromyalgia: the WPI score is greater than or equal to 7 AND the SSS score is greater than or equal to 5 or the WPI score is from 3 to 6 AND the SSS score is greater than or equal to 9. | 22,23 |
| The Hospital anxiety and depression scale | HADS | 14-item self-reported screening scale. Scores of ≥11 indicate abnormal results. | 24 |
| Pittsburgh sleep quality index | PSQI | PSQI score has a range of 0–21. A score of ≥5 indicates poorer sleep quality. | 25 |
| Cognitive failure questionnaire | CFQ | Score range is 0–100. Scores of ≥43 indicate cognitive impairment. | 26 |
| Birmingham vasculitis activity score-version 3 | BVAS | Measure of current vasculitis disease activity. Score range 0–63. Higher scores indicate greater disease activity. | 27 |
| Vasculitis damage index | VDI | Records presence of any organ damage since the diagnosis. 64 items of damage (grouped into 11 organ-based systems). Higher scores indicate more damage. | 28 |