Table 1. Spreadsheet reporting the characteristics of all studies included.
| Study | Year | Study design | Duration | Procedure | Age (years) | Mean preoperative BMI | Total number of patients | Sex | Patient 12-month follow-up | 12 months %EWL | Adverse events 1 | NIH Quality Assesment Tool |
| Alqahtani A. 38 | 2019 | Observational | 18 months | ESG | 344 ± 95 | 333 ± 45 | 1000 | M103 F897 | 216 | 675 ± 523 | Major AE 6; minor AE 961 | 8/12 |
| Lopez-Nava G. 39 | 2017 | Observational | 2 years | ESG | 449 ± 95 | 383 ± 55 | 154 | M46 F108 | 64 | 526 ± 313 | Major AE 0; minor AE N/R | 10/12 |
| Barrichello S. 40 | 2019 | Observational | 1 year | ESG | 423 ± 96 | 341 ± 3 | 193 (165) 2 | M45 (36) 2 F148 (129) 2 | 121 | 594 ± 257 | Major AE 2; minor AE 103 | 10/12 |
| Abu Dayyeh B. K. 41 | 2017 | Observational | 20 months | ESG | 47 ± 10 | 355 ± 26 | 25 | M4 F21 | 25 | 54 ± 40 | Major AE 2; minor AE 18 | 11/12 |
| James T. W. 28 | 2019 | Observational | 1 year | ESG | 45 ± 9 | 384 ± 54 | 100 | M14 F86 | 100 | 661 ± 215 | Major AE 2; minor AE 2 | 10/12 |
| Grau Morales J. 42 | 2018 | Observational | 1 year | ESG | 415 ± 10 | 351 ± 55 | 148 | M27 F121 | 148 | 754 ± 85 | Major AE 0; minor AE 2 | 11/12 |
| Bhandari M. 29 | 2019 | Observational | 1 year | ESG | 405 ± 138 | 348 ± 52 | 53 | M10 F43 | 42 | 662 ± 255 | Major AE 0; minor AE 47 | 11/12 |
| Cheskin L. J. 30 | 2020 | Observational | 1 year | ESG | 480 ± 121 | 400 ± 77 | 105 | M30 F75 | 43 | 57 ± 259 | Major AE 1; minor AE 4 | 9/12 |
| Berry M. A. 27 | 2018 | Observational | 56 months | LSG | 39 ± 117 | 3239 ± 12 | 252 | M64 F188 | 219 | 97 ± 214 | Major AE3; minor AE 3 | 11/12 |
| Noun R. 32 | 2012 | Observational | 2 years | LSG | 33 ± 10 | 332 ± 25 | 122 | M17 F105 | 122 | 765 ± 17 | Major AE 0; minor AE 4 | 9/12 |
| Maiz C. 36 | 2015 | Observational | 1 year | LSG | 372 ± 111 | 331 ± 18 | 836 | M107 F729 | 557 | 1072 ± 371 | Major AE 66; minor AE 33 | 9/12 |
| Zhang Y. 31 | 2014 | Randomized Controlled Trial | 5 years | LSG | 293 ± 98 | 385 ± 42 | 32 | M12 F20 | 26 | 739 ± 243 | Major AE 0; minor AE 4 | 4/5 3 |
| Ismail M. 33 | 2019 | Observational | 7 years | LSG | 337 ± 112 | 376 ± 16 | 95 (35) 2 | M43 F52 | 90 (35) 2 | 686 ± 27 | Major AE 0; minor AE N/R | 11/12 |
| Hans P. K. 34 | 2018 | Observational | 5 years | LSG | 299 ± 73 | 383 ± 62 | 218 | M68 F150 | 96 | 628 ± 169 | Major AE 0; minor AE 35 | 8/12 |
| Park Y. H. 35 | 2017 | Observational | 2 years | LSG | 304 ± 79 | 347 ± 53 | 74 | M16 F58 | 74 | 878 ± 251 | Major AE 5; minor AE 6 | 8/12 |
| Lakdawala M. 37 | 2015 | Observational | 2 years | LSG | 355 ± 78 | 399 ± 51 | 300 | M150 F150 | 300 | 683 ± 24 | Major AE 0; minor AE 1 | 10/12 |
AE, adverse events; ESG, endoscopic sleeve gastroplasty; LSG, laparoscopic sleeve gastrectomy; BMI, body mass index; %EWL, percentage of excess weight loss; %TBWL, percentage of total body weight loss; N/R, not reported; NIH, National Heart, Lung, and Blood Institute.
Considering Clavien Dindo grade I and II as minor adverse events, while grade III, IV and V as major adverse events
Obesity class I and II
Revised Cochrane Risk-Of-Bias (ROB) tool for randomized trials