Table 2 Comparison of the clinical characteristics between positive and negative groups among the isocyanate-exposed subjects Isocyanate-exposed subjects were divided into two groups according to the cutoff value of serum VDBP level: positive (≥ 11 µg/ml) and negative (<311 µg/ml) groups. Statistical significance was evaluated by Student's t-test

From: Role of vitamin D-binding protein in isocyanate-induced occupational asthma