Table 1. Characteristics of patients with ACPA-positive arthralgia and established RA included in the study.
At-risk arthralgia | Established RA | |
---|---|---|
Number of patients | 8 | 20 |
ACPA-IgG plasma concentrations | ||
Median (AU/ml) | 420 | 2343 |
Range (AU/ml) | 31–2563 | 101–7667 |
Frequency of ACPA-positive B cells in total PBMCs |
||
Median (%) | 0.0017 | 0.0049 |