One-anastomosis gastric bypass vs sleeve gastrectomy for complications, perioperative status, and quality of life: Meta-analysis

Table 1 Complications in one-anastomosis gastric bypass and sleeve gastrectomy

Ref.	Age, OAGB vs SG, years	BMI, OAGB vs SG	Study type	Country	Study duration, years	SG, events	SG, total	OAGB, events	OAGB, total
Abouelela et al[23], 2020	44.87 ± 10.34 vs 45.11 ± 9.09	65.12 ± 5.89 vs 67.12 ± 3.95	Retrospective	Egypt	1	2	25	2	25
Bhandari et al[24], 2019	42.41 ± 11.0 vs 45.85 ± 12.2	54.23 ± 3.69 vs 56.39 ± 6.11	Retrospective	India	3	3	227	8	124
Das et al[25], 2024	47.1 vs 46.7	47.1 ± 9.75 vs 52.7 ± 7.17	Retrospective	Pakistan	2.16	4	26	4	19
Jammu and Sharma[26], 2016	38 vs 23	42.5 vs 35	Prospective	India	7	12	339	0	473
Jung et al[27], 2022	Matched	Matched	Retrospective	Canada	5	17	341	23	341
Kular et al[28], 2014	Not mentioned	Not mentioned	Retrospective	India	1.5	26	118	14	104
Lee et al. 2015[29]	35.9 ± 9.1 vs 35.9 ± 9.1	37.5 ± 6.1 vs 37.4 ± 5.9	Retrospective	Taiwan	6	8	519	10	519
Litmanovich et al[30], 2025	36.7 ± 13.5 vs 42.7 ± 15.2	52.2 ± 2.7 vs 55 ± 5.4	Retrospective	Israel	10	11	76	5	45
Madhok et al[31], 2016	51 ± 10.5 vs 45 ± 9.75	65 ± 9 vs 67 ± 6	Retrospective	United Kingdom	2	8	56	2	19
Musella et al[32], 2014	49.2 ± 9.1 vs 48.5 ± 8.7	48.1 ± 7.8 vs 48.3 ± 9.2	Retrospective	Multi-nation	1.5	20	175	3	80
Plamper et al[33], 2017	43.4 ± 11.2 vs 43.2 ± 11.1	54.6 ± 10.3 vs 54.1 ± 6.6	Retrospective	Germany	1	11	118	5	169
Plamper et al[34], 2023	42 ± 11 vs 44 ± 11	50.97 ± 7.31 vs 54.21 ± 10.07	Retrospective	Germany	5	133	241	253	911
Poljo et al[35], 2021	45.0 ± 9.1 vs 42.5 ± 10.2	42.1 ± 5.1 vs 46.7 ± 8.0	Retrospective	Austria	1.8	3	50	4	77
Rajan et al[36], 2020	42.3 ± 10.7 vs 39.2 ± 11.2	52.8 ± 1.5 vs 60.9 ± 9.3	Retrospective	Malaysia	1	1	27	0	3
Roushdy et al[37], 2020	33.8	48.6	Trial	Egypt	1	1	20	6	20
Schmitz et al[38], 2022	39.11 ± 0.9 vs 41.57 ± 1.07	64.14 ± 0.3 vs 66.91 ± 0.6	Retrospective	Germany	12	53	93	69	150
Singhal et al[39], 2022	40 vs 38	43.11 vs 41.91	Retrospective	Multi-national	1.5	233	3983	53	702
Singla et al[40], 2019	39.56 ± 9.77 vs 39.89 ± 11.75	44.32 ± 7.88 vs 44.57 ± 7.16	Retrospective	India	1	2	50	0	25
Singla et al[41], 2024	35 vs 37	61 vs 63.2	Retrospective	India	5	0	56	0	13
Soong et al[42], 2021	31.9 ± 9.7 vs 33.0 ± 10.0	56.2 ± 5.8 vs 55.9 ± 5.5	Retrospective	Taiwan	14	6	190	21	246
Tasdighi et al[43], 2022	40.4 ± 10.9 vs 39.2 ± 12.6	54.9 ± 4.6 vs 54.3 ± 3.9	Retrospective	Iran	3	15	348	32	209
Vrakopoulou et al[44], 2021	46.6 ± 7.8 vs 45.9 ± 7.5	52.7 ± 10.8 vs 52.2 ± 8.6	Retrospective	Greece	1.5	2	28	1	25
Alkhalifah et al[45], 2018	35.2 ± 10.1 vs 33.8 ± 10.4	36.4 ± 7.6 vs 40.4 ± 7.7	Prospective	Taiwan	5	Not assessed	1731	Not assessed	1107
Seetharamaiah et al[46], 2017	39.9 ± 11.75 vs 42.9 ± 14.02	39.9 ± 11.7 vs 42.9 ± 14.0	Trial	India	3	Not assessed	100	Not assessed	101
Shivakumar et al[47], 2018	39.9 ± 11.75 vs 42.9 ± 14.02	44.6 ± 7.16 vs 44.3 ± 7.88	Trial	India	3	Not assessed	100	Not assessed	101
Jain et al[48], 2021	42.9 ± 14.0 vs 39.9 ± 11.7	44.3 ± 7.88 vs 44.5 ± 7.16	Trial	India	5	Not assessed	47	Not assessed	49
Musella et al[49], 2021	18-65	48.5 ± 8.8 vs 47.5 ± 7.3	Trial	Italy	1	Not assessed	28	Not assessed	30
Vitiello et al[50], 2023	39.5 ± 10.1 vs 39.4 ± 9.9	44 ± 6 vs 44.3 ± 5.4	Retrospective	Italy	3	Not assessed	109	Not assessed	119
Abu Sneineh et al[51], 2021	Not assessed	Not assessed	Retrospective	Israel	10	Not assessed	98	Not assessed	42
Genco et al[52], 2021	Not assessed	45.2 ± 6.9 vs 46.7 ± 6.7	Prospective	Italy	10	Not assessed	48	Not assessed	59
Gambardella et al[53], 2024	40.1 ± 5.1 vs 38.9 ± 4.6	47.1 ± 2.3 vs 46.2 ± 3.6	Retrospective	Italy	5	Not assessed	57	Not assessed	128

SG: Sleeve gastrectomy; OAGB: One-anastomosis gastric bypass; BMI: Body mass index.