Relationship between Nonalcoholic Fatty Liver Disease and Vitamin D Nutritional Status in Extreme Obesity

Table 3

Mean serum concentrations of biochemical indicators of liver tests in relation to the nutritional status of vitamin D.

Variables	Nutritional status of vitamin D
	Deficiency	Insufficiency	Sufficiency	value
	AST (U/L)	28.1 ± 22.8	23.5 ± 14.9		19.4 ± 5.3	0.672
ALT (U/L)	29.1 ± 17.5	26.9 ± 15.8	22.4 ± 9.9	0.587
AP (U/L)	72.7 ± 18.2	81.2 ± 26.1	65.6 ± 28.1	0.234
GGT (U/L)	39.2 ± 25.7	28.9 ± 17.1	30.3 ± 22.8	0.212
Albumin (U/L)	4.4 ± 0.6	4.1 ± 0.3	4.1 ± 0.3	0.287

ANOVA: mean and standard deviation. AST: aspartate aminotransferase; ALT: alanine aminotransferase; AP: alkaline phosphatase; GGT: gamma-glutamyl transpeptidase.