Table 1.

Study population prior to operation

	Total	SG	RYBG	p-value
n	175	88	87
Female	129 (73%)	55 (63%)	74 (85%)	0.003*
BMI (kg/m2)	52.7 (0.64)	53.5 (1.01)	51.8 (0.78)	0.087
LiMAx (μg/kg/h)	302.8 (8.9)	300.1 (12.0)	305.6 (13.2)	0.756
Abnormal liver function test results (LiMAx < 315 μg/kg/h)	103 (64%)	51 (62%)	52 (65%)	0.807
APRI	0.099 (0.003)	0.1 (0.005)	0.097 (0.004)	0.328
T2DM	54 (31%)	33 (38%)	21 (24%)	0.036*
Arterial hypertension	99 (66%)	55 (63%)	44 (51%)	0.046*