Table 1.

Liver function tests in the one anastomosis gastric bypass-200 group at 1 and 2 years follow-up compared to the pre-operative values

	Pre-operative	1-year	P	95% CI	2-year	P	95% CI
Mean bilirubin	9.08±4.68	10±7.61	0.0940	−2.19–0.17	8.37±5.04	0.08261	−0.28–1.69
Abnormal bilirubin (%)	3 (1.35)	8 (3.73)	0.1346	NA	4 (2.53)	0.4562	NA
Mean GGT	37.99±29.05	27.33±32.32	0.0003*	4.89–16.43	26.28±33.0	0.0003*	5.44–17.98
Abnormal GGT (%)	38 (17.04)	21 (9.85)	0.0352*	NA	13 (8.17)	0.0142*	NA
Mean AST	23.63±11.46	28.5±41.22	0.1025	−10.72–0.98	25.34±10.26	0.1661	−4.13–0.71
Abnormal AST (%)	14 (6.76)	15 (7.5)	0.8482	NA	10 (7.75)	0.8282	NA
Mean ALT	30.34±27.52	30.63±45.60	0.9360	−7.33–6.76	28.11±21.41	0.3954	−2.92–7.37
Abnormal ALT (%)	35 (15.69)	27 (12.79)	0.4128	NA	20 (12.65)	0.4608	NA
Mean ALP	80.50±24.69	90.14±28.57	0.0002*	−14.65–−4.64	90.13±32.81	0.0012*	−15.41–−3.84
Abnormal ALP (%)	8 (3.57)	16 (7.47)	0.0929	NA	13 (8.22)	0.0672	NA
Mean albumin	45.75±3.15	43.2±3.53	<0.0001*	1.922–3.178	43.39±3.67	<0.0001*	1.670–3.046
Abnormal albumin (%)	0 (0)	3 (1.39)	0.1174	NA	4 (2.53)	0.0289*	NA

*Significant difference. GGT: Gamma glutamyl-transpeptidase, AST: Aspartate transaminase, ALT: Alanine transaminase, ALP: Alkaline phosphatase