Risk factors for later A or B flares based on organ system involvement.
| Factor at Baseline | Organ System | No A or B Flare, % | Later A or B Flare, % | p | OR (95% CI) |
|---|---|---|---|---|---|
| Sex female | Hematologic | 85 | 96 | 0.0100 | 3.85 (1.41, 10.6) |
| Any flare | 83 | 91 | 0.0394 | 2.13 (1.06, 4.29) | |
| Ethnicity African American | Hematologic | 34 | 52 | 0.0070 | 2.07 (1.23, 3.50) |
| Any flare | 25 | 47 | 0.0003 | 2.67 (1.57, 4.55) | |
| Low C3 | Mucocutaneous | 20 | 36 | 0.0156 | 2.20 (1.18, 4.10) |
| Renal | 19 | 33 | 0.0217 | 2.02 (1.14, 3.57) | |
| Hematologic | 17 | 39 | < 0.0001 | 3.19 (1.80, 5.63) | |
| Any flare | 17 | 27 | 0.0580 | 1.87 (1.01, 3.46) | |
| Low C4 | Mucocutaneous | 18 | 41 | 0.0004 | 3.14 (1.69, 5.84) |
| Renal | 19 | 31 | 0.0217 | 1.98 (1.11, 3.51) | |
| Hematologic | 17 | 36 | 0.0004 | 2.89 (1.63, 5.13) | |
| Any flare | 15 | 27 | 0.0183 | 2.17 (1.15, 4.11) | |
| Anti-dsDNA-positive | Hematologic | 20 | 37 | 0.0033 | 2.33 (1.34, 4.04) |
| Any flare | 19 | 29 | 0.0651 | 1.80 (1.00, 3.26) | |
| Low C3 AND anti-dsDNA-positive | Mucocutaneous | 10 | 23 | 0.0095 | 2.71 (1.30, 5.67) |
| Renal | 8 | 23 | 0.0017 | 3.23 (1.60, 6.54) | |
| Hematologic | 10 | 20 | 0.0209 | 2.40 (1.19, 4.84) | |
| Any flare | 7 | 16 | 0.02770 | 2.61 (1.10, 6.18) | |
| Low C4 AND anti-dsDNA-positive | Mucocutaneous | 8 | 25 | 0.0009 | 3.91 (1.83, 8.33) |
| Renal | 8 | 18 | 0.0249 | 2.45 (1.18, 5.12) | |
| Hematologic | 8 | 20 | 0.0026 | 3.13 (1.50, 6.54) | |
| Any flare | 5 | 15 | 0.0110 | 3.47 (1.30, 9.30) | |
| Low C3 AND low C4 | Mucocutaneous | 10 | 27 | 0.0024 | 3.18 (1.56, 6.48) |
| Hematologic | 9 | 25 | 0.0007 | 3.37 (1.70, 6.68) | |
| Any flare | 7 | 18 | 0.0120 | 2.98 (1.27, 7.00) |