Table III.
Causes of secondary antibody deficiency in our cohort of patients
| Precipitating disease that led to SAD | No. of patients |
|---|---|
| Immunosuppressive therapy for vasculitis | 21 |
| Immunosuppressive therapy for inflammatory arthritis/RA | 9 |
| Immunosuppressive therapy for SLE | 7 |
| Immunosuppressive therapy for Behçet disease | 2 |
| Immunosuppressive therapy for Sjogren syndrome | 1 |
| Immunosuppressive therapy for chronic immune thrombocytopenia | 1 |
| Immunosuppressive therapy for relapsing polychondritis | 1 |
| Immunosuppressive therapy for RA/SLE overlap | 1 |
| B-cell lymphoma∗ | 20 |
| CLL∗ | 14 |
| ALL∗ | 2 |
| CML∗ | 1 |
| Large granular lymphocytic leukemia∗ | 1 |
| IgM MGUS∗ | 1 |
| Myeloma∗ | 1 |
| T-cell lymphoma∗ | 1 |
ALL, Acute lymphocytic leukemia; CLL, chronic lymphocytic leukemia; CML, chronic myeloid leukaemia; MGUS, monoclonal gammopathy of unknown significance; RA, rheumatoid arthritis.
∗
The condition as well as its treatment causes immunodeficiency.