Table 3 Demographic data of study subjects used in co-culture experiments
From: Impaired lymph node stromal cell function during the earliest phases of rheumatoid arthritis
| Healthy control subjects (n = 5) | Individuals with RA risk (n = 5) | Patients with early RAa (n = 5) | |
|---|---|---|---|
| Passages | P4–P8 | P4–P8 | P4–P8 |
| Female sex, n (%) | 3 (60) | 3 (60) | 4 (80) |
| Median age, years (IQR) | 28 (24–33) | 50 (28–57) | 47 (35–57) |
| IgM-RF-positive, n (%) | 0 (0) | 0 (0) | 4 (80) |
| IgM-RF level, kU/L, median (IQR) | – | 3 (1–15.5) | 437 (159–2210) |
| ACPA-positive, n (%) | 0 (0) | 5 (100) | 5 (100) |
| ACPA level, kAU/L, median (IQR) | – | 75 (45–112.5) | 328 (61–1969) |
| IgM-RF and ACPA both positive, n (%) | 0 (0) | 0 (0) | 4 (80) |
| DAS28, median (IQR) | – | – | 5.3 (3.2–6.8) |
| CRP, mg/L, median (IQR) | 0.4 (0.3–2.7) | 1.6 (0.7–2) | 4.4 (1.3–19.8) |