Table 1 The level of included clinical study on laparoscopic metabolic surgery for T2DM
Levels | Type of study | No. of World | No. of Asian | Rates |
|---|---|---|---|---|
I 1a | Systematic review/ meta-analysis | 102 | 13 | 12.7% (13/102) |
I 1b | RCT | 52 | 10 | 19.2% (10/52) |
II 2b | Cohort study | 398 | 59 | 14.8% (59/398) |
IV 4 | Case series | 129 | 35 | 27.1% (35/129) |
V 5 | Case report/other | 238 | 88 | 37.0% (88/238) |