Table 2.

The level of liver enzymes (mmol/L) in patients according to the presence of OSAS and severity

Liver enzymes	Non-OSAS	Mild/moderate OSAS	Severe OSAS	P
ALT	18.0 (3.0–250.0)	19.0 (5.0–399.0)	26.0 (7.0–179.0)*,†	<0.001
AST	21.0 (9.0–115.0)	19.0 (7.0–126.0)	20.0 (9.0–113.0)	0.101
GGT	21.0 (6.0–594.0)	23.0 (5.0–198.0)	33.0 (7.0–339.0)*,†	<0.001

Data were expressed as vaules (normal range). *Compared with non-OSAS, P<0.05; ^†Compared with Mild/Moderate OSAS, P<0.05. OSAS: Obstructive sleep apnea-hypopnea syndrome; ALT: Alanine aminotransferase; AST: Aspartate aminotransferase; GGT: Gamma-glutamyl transferase.