Table 1

 Diagnosis after 1 year of follow up of patients who presented with UA and the numbers of patients who had ended EAC follow up at 1 year, and their main reason for doing so

Diagnosis at 1 yearPatientsPatients who ended follow upMain reason for end of follow up
No (%)(n)No (%)
Arthritis of unknown cause134 (40.6)76Remission 57 (75)
Rheumatoid arthritis91 (27.6)9Death 3 (33)
Remission 3 (33)
Refusal 1 (11)
Other/unknown 2 (22)
Probable RA39 (11.8)9Remission 7 (78)
Osteoarthrosis/arthritis11 (3.3)10End of treatment 7 (70)
Psoriatic arthritis8 (2.4)2Remission 2 (100)
Reactive arthritis6 (1.8)6Remission 6 (100)
Crystal induced arthritis4 (1.2)3EAC protocol 3 (100)
Lyme arthritis4 (1.2)2Remission 2 (100)
Paraneoplastic arthritis3 (0.9)2Remission 1 (50)
Life threatening illness 1 (50)
Systemic lupus erythematosus2 (0.6)0
Palindromic RA1 (0.3)1Moved house 1 (100)
Spondyloarthropathy1 (0.3)1EAC protocol 1 (100)
Unknown cause6 (1.8)6Remission 4 (67)
Other causes20 (6.1)10Remission 4 (40)