S100B and Behcet disease: Median levels of S100b at admission in BD and non-BD were 2.32 μg/L and 1.04 μg/L, respectively (p=0.0028). Logistic regression showed that S100b was an independent predictor of BD, with an OR of 2.09 (95% CI: 1.03-4.25) for deterioration to BD.