Multivariable importance of variables using VAS “thermometer” assessment of quality of life as dependent variable. Metrics are normalized to sum to 100% for cognitive impairment through widespread pain index. All data are percentages.
Item | RA (N = 5884) | RA FM+ (N = 1233) | RA FM− (N = 4651) | FM All (N = 808) | FM Criteria (+) (N = 466) |
---|---|---|---|---|---|
Cognitive impairment | 3.9 | 1.6 | 2.0 | 10.8 | 11.4 |
Fatigue | 14.2 | 9.9 | 14.9 | 15.8 | 12.0 |
HAQ disability | 20.2 | 24.1 | 24.1 | 17.2 | 20.5 |
Mood | 9.1 | 13.0 | 9.1 | 7.5 | 5.9 |
Pain | 18.7 | 20.6 | 21.5 | 17.4 | 19.9 |
Sleep | 9.9 | 9.5 | 9.7 | 8.5 | 9.3 |
Stiffness | 8.2 | 9.6 | 7.7 | 6.3 | 3.5 |
Symptom count | 7.7 | 5.3 | 5.8 | 6.9 | 4.2 |
Widespread pain index | 8.1 | 6.5 | 5.2 | 9.5 | 13.3 |
Explained variance | 34.0 | 19.7 | 26.9 | 28.5 | 17.1 |
Maximum explained variance* | 37.9 | 24.7 | 31.1 | 33.4 | 24.7 |
↵* Separate model that includes above variables plus SF-36 physical component summary. HAQ: Health Assessment Questionnaire.