Characteristics of participants with hypogammaglobulinaemia prior to induction therapy for lupus nephritis
| IgG <450 mg/dL | IgG ≥450 mg/dL | p Value | |
| n=16 | n=86 | ||
| Age | 29.8±7.2 | 32.3±11.0 | 0.61 |
| Gender | 0.35 | ||
| Female | 16/16 (100%) | 77/86 (90%) | |
| Race | 0.51 | ||
| Asian | 1/16 (6%) | 2/86 (2%) | |
| Black | 8/16 (50%) | 36/86 (42%) | |
| White | 0/16 (0%) | 6/86 (7%) | |
| Other | 7/16 (44%) | 42/86 (49%) | |
| Ethnicity | 0.42 | ||
| Hispanic or Latino | 8/16 (50%) | 53/86 (62%) | |
| Urinary protein ≥3.5 g* | 13/16 (81%) | 31/86 (36%) | <0.01 |
| Lymphocyte count <1000 | 8/16 (50%) | 43/85 (51%)† | >0.99 |
| Lupus nephritis ≥12 months | 8/16 (50%) | 20/86 (23%) | 0.04 |
| MMF within past 30 days | 4/16 (25%) | 9/86 (10%) | 0.12 |
| CS within past 30 days | 12/16 (75%) | 62/86 (72%) | >0.99 |
*In a 24-hour urine collection.
†1 missing.
CS, corticosteroids; MMF, mycophenolate mofetil/mycophenolic acid.