Table 2 Clinical features of IgG4-RD patients and control participants subjected to serum collagen type XV measurement
|  | HC (N = 5) | IgG4-RD, inactive (N = 5) | IgG4-RD, active (N = 10) |
|---|---|---|---|
Age, median (IQR), years | 69 (59–73) | 69 (66–69) | 65 (64–69.25) |
Sex, female (%) | 40 | 20 | 20 |
number of involved organs, median (IQR) | N.D. | 1 (1–2) | 2 (1.25–2) |
*Serum IgG4, median (IQR), mg/dL | N.D. | 397 (220–480) | 1073 (437.5–1240) |
*Serum IgG4 3 months after treatment, median (IQR), mg/dL | N.D. | N.D. | 173 (93.5–252.75) |
IgG4-RD responder index before treatment, median (IQR) | N.D. | 0 (0–1) | 11.5 (8.5–13.5) |
IgG4-RD responder index 3 months after treatment, median (IQR) | N.D. | N.D. | 1 (0.25–1.75) |