Antigen | Immunofluorescence positive | ||
AI=0* (n=76) | AI ≥1† (n=32) | P value | |
IgG | 55% | 94% | <0.0001 |
IgA | 26% | 50% | 0.025 |
IgM | 37% | 66% | 0.01 |
C3 | 21% | 66% | <0.0001 |
C1q | 22% | 78% | <0.0001 |
*Patients who achieved an AI of 0 at biopsy 3.
†Patients who did not achieve an AI of 0 at biopsy 3.
AI, activity index.