Table 6.

Change in the anti-IgG-AGE response from initial visit to follow up in the early synovitis cohort

Patient group	n	Always negative	Positive at initial assessment;negative at follow up	Negative at initial assessment;positive at follow up	Always positive
RA RF+	68	22 (32%)	17 (25%)	15 (22%)	14 (21%)
RA RF-	35	32 (91%)	1 (3%)	0 (0%)	2 (6%)
SpA	38	32 (84%)	5 (13%)	1 (3%)	0 (0%)
UA	75	64 (85%)	8 (11%)	1 (2%)	2 (3%)

Values are expressed as n (%), unless otherwise stated. AGE, advanced glycation end-product; RA, rheumatoid arthritis; RF, rheumatoid factor; SpA, spondyloarthropathy; UA, undifferentiated arthritis.