Clinical Study
Validation of a Prediction Rule for the Diagnosis of Rheumatoid Arthritis in Patients with Recent Onset Undifferentiated Arthritis
Table 2
Diagnosis fulfilled by patients with early arthritis after followup.
| Diagnosis | Number of patients | % |
| Rheumatoid arthritis | 37 | 40.7 | Undifferentiated arthritis | 28 | 30.8 | Polymyalgia rheumatica | 4 | 4.40 | Psoriatic arthritis | 4 | 4.40 | Osteoarthritis | 3 | 5.26 | Sjogren’s Syndrome | 2 | 2.20 | Sarcoidosis | 1 | 1.10 | Other | 12 | 13.18 |
| Total | 91 | 100 |
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