Clinical Usefulness of Bioavailable Vitamin D and Impact of GC Genotyping on the Determination of Bioavailable Vitamin D in a Korean Population

Table 2

VDBP, total 25(OH)D, and genotype-independent bioavailable 25(OH)D concentrations according to medical status.

	Healthy controls ()	Patients with LC ()	Pregnant women ()	value
VDBP (μg/ml)	165.2 (140.5-191.6)	76.9 (49.8-101.4)	368.9 (313.8-407.6)	<0.001
Total 25(OH)D (ng/ml)	18.5 (14.2-23.9)	10.5 (7.1-15.4)	17.7 (11.4-22.7)	<0.001
Genotype-independent bioavailable 25(OH)D (ng/ml)	3.0 (2.6-4.3)	2.4 (1.4-3.9)	1.2 (0.8-1.7)	<0.001

Values are presented with median (interquartile range). LC: liver cirrhosis; VDBP: vitamin D-binding protein; 25(OH)D: 25-hydroxy vitamin D.