Criteria |
A patient satisfies diagnostic criteria for fibromyalgia if the following 3 conditions are met: |
1) Widespread pain index (WPI) ≥7 and symptom severity (SS) scale score ≥5 or WPI 3 to 6 and SS scale score ≥9. |
2) Symptoms have been present at a similar level for at least 3 months. |
3) The patient does not have a disorder that would otherwise explain the pain. |
Ascertainment |
1) WPI |
Note the number of areas in which the patient has had pain over the last week. In how many areas has the patient had pain? Score will be between 0 and 19. |
Neck |
Jaw, left |
Jaw, right |
Shoulder girdle, left |
Shoulder girdle, right |
Upper arm, left |
Upper arm, right |
Lower arm, left |
Lower arm, right |
Chest |
Abdomen |
Upper back |
Lower back |
Hip (buttock, trochanter), left |
Hip (buttock, trochanter), right |
Upper leg, left |
Upper leg, right |
Lower leg, left |
Lower leg, right |
2) SS scale score |
For the each of the 3 symptoms below, indicate the level of severity over the past week using the following scale: |
0 = no problem | 1 = slight or mild problems, generally mild or intermittent | 2 = moderate, considerable problems, often present and/or at a moderate level | 3 = severe, pervasive, continuous, life-disturbing problems |
- Fatigue (0 to 3) |
- Waking unrefreshed (0 to 3) |
- Cognitive symptoms (0 to 3) |
How many of the following has the patient had in the past 6 months? |
- Pain or cramps in lower abdomen |
- Depression |
- Headache |
The SS scale score is the sum of the severity of the 3 symptoms (fatigue, waking unrefreshed, cognitive symptoms) plus the number of the itemized symptoms present. The final score is between 0 and 12. |