IgG and IgM reactivity with HSC 70 and HSP 90 proteins by ELISA (results are percentages)
| Group | HSC 70 | HSP 90 | |||||
|---|---|---|---|---|---|---|---|
| IgG | IgM | IgG | IgM | ||||
| Recent onset RA (n=47) | 53.0 | 19.0 | 49.0 | 13.0 | |||
| Longstanding RA (n=73) | 41.1 | 42.51-150 | 39.7 | 56.1** | |||
| Psoriatic arthritis (n=30) | 3.0 | 0.0 | 3.0 | 0.0 | |||
| Ankylosing spondylitis (n=30) | 3.0 | 3.0 | 3.0 | 3.0 | |||
| MCTD (n=21) | 80.0 | 14.0 | 85.0 | 33.0 | |||
| SLE (n=10) | 80.0 | 0.0 | 70.0 | 30.0 | |||
| Primary SS (n=28) | 3.0 | 0.0 | 3.0 | 0.0 | |||
| Progressive systemic sclerosis (n=28) | 0.0 | 10.0 | 0.0 | 10.0 | |||
| Normal controls (n=48) | 4.2† | 5.3† | 2.7† | 5.4‡ | |||
Longstanding RA compared with recent onset RA.
(χ2 respectively: 6.99; 22.6).
Longstanding RA compared with normal controls.
(χ2c respectively: 18.44; 15.3; 15.6; 25.18).
↵1-150 p<10−2, **p<10−5,†p<10−4, ‡p<10−5.