Table 1.

Definition of normality for breath test parameters and blood tests

	Units	Normal values	± 30% of normal
Breath test	%/h	> 30	> 21
AL	U/L	< 53	< 69
AST	U/L	< 60	< 78
INR	U/L	1.00	< 1.30
BIL	μmol/L	< 17	< 22