Table 2.

Liver function tests in the one anastomosis gastric bypass-150 group at 1 and 2 years of follow-up compared to the pre-operative values

	Pre-operative	1-year	P	95% CI	2-year	P	95% CI
Mean bilirubin	8.18±5.62	8.52±4.38	0.5456	−1.42–0.75	8.22±5.28	0.9505	−1.30–1.22
Abnormal bilirubin (%)	3 (1.79%)	3 (1.85%)	1.0000	NA	3 (2.34%)	1.0000	NA
GGT	37.79±30.49	24.33±37.41	0.0004*	6.11–20.80	22.69±23.04	0.0001*	NA
Abnormal GGT (%)	27 (16.16%)	9 (5.48%)	0.0023*	NA	7 (5.38%)	0.0052*	NA
AST	24.45±12.65	24.24±20.41	0.9139	−3.57–3.98	24.83±10.39	0.8003	−3.31–2.56
Abnormal AST (%)	13 (8.28%)	10 (6.62%)	0.6670	NA	6 (5.76%)	0.6274	NA
ALT	31.63±22.06	24.63±13.77	0.0006*	3.02–10.99	27.36±16.08	0.0639	−0.25–8.79
Abnormal ALT (%)	31 (18.52%)	16 (9.87%)	0.0276*	NA	17 (13.07%)	0.2659	NA
ALP	75.69±19.97	89.07±26.81	0.0001*	−18.47–−8.28	83.79±21.72	0.0009*	−12.85–−3.35
Abnormal ALP (%)	2 (1.19%)	7 (4.34%)	0.0991	NA	2 (1.53%)	1.0000	NA
Albumin	45.13±2.87	43.55±3.14	0.0001*	0.930–2.224	43.68±3.43	0.0001*	0.731–2.164
Abnormal albumin (%)	1 (0.58%)	2 (1.21%)	0.6183	NA	3 (2.29%)	0.3208	NA

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