Table 1. Demographic, anthropometric, clinical and laboratorial parameters in Systemic Lupus Erythematosus patients and their healthy controls.
| Healthy controls (N = 150) | SLE (N = 199) | p | |
|---|---|---|---|
| Sex,N(%) | |||
| Women | 135(90) | 191(96) | 0.231 |
| Men | 15(10) | 8(4) | |
| Race, N(%) | |||
| White | 93(62) | 111(55.7) | 0.238 |
| Mixed | 52(35) | 81(40.7) | |
| Black | 5(3) | 7(3.6) | |
| Age (years) | 36.5±10.9 | 37.2±11.1 | 0.423 |
| Weight (kg) | 70.2±15.2 | 69.8±16.2 | 0.217 |
| Height (m) | 1.60±0.08 | 1.59±0.08 | 0.208 |
| BMI (kg/m2) | 27.4±5.5 | 27.7±6.0 | 0.880 |
| Disease duration (years) | - | 9.7±7.2 | - |
| 25(OH)D (ng/mL) | 28.79±7.82 | 26±7.93 | 0.009 |
| ≥30 ng/mL (%) | 33.96 | 28.64 | <0.001& |
| 20–30 ng/mL (%) | 59.43 | 47.24 | |
| <20 ng/mL (%) | 6.60 | 24.12 | |
| DBP (ng/mL)* | 1.91±0.89 | ||
| Free vitamin D (pg/mL)* | 11.10±5.44 | ||
| Bioavailable vitamin D (ng/mL)* | 4.32±2.12 |
*N = 160
& ANOVA.