Factor analysis of clinical variables in 1577 patients with rheumatoid arthritis.
| Variable | Factor 1 Loading (Patient Factor) | Factor 2 Loading (Inflammation, Physician Factor) |
|---|---|---|
| Pain | 0.844 | 0.192 |
| Patient global* | 0.831 | 0.223 |
| Fatigue | 0.749 | 0.102 |
| HAQ-II | 0.723 | 0.202 |
| MD inflammation severity | 0.426 | 0.681 |
| Tender joint count* | 0.275 | 0.653 |
| ESR* | 0.106 | 0.183 |
| Swollen joint count* | 0.073 | 0.690 |
↵* DAS-28 component. ESR: erythrocyte sedimentation rate; DAS28: Disease Activity Score-28; HAQ2: Health Assessment Questionnaire II.