Table 2.
Characteristics of the included randomized controlled trials
| Ref. | Format | Country | Center involved |
EST plus LBD, EST |
Balloon diameter (mm) | Jadad score | |||
| Number (n) | Male, female | Mean age (yr) | Stone size (mm) | ||||||
| Heo et al[22] 2007 | Full text | Korea | 1 | 100 | 48, 52 | 64 | 16.0 ± 0.71 | 12-20 | 4 |
| 100 | 50, 50 | 63 | 15.0 ± 0.71 | ||||||
| Hong et al[11] 2009 | Abstract | Korea | 1 | 70 | Not reported | Not reported | > 15 | 15 or 20 | 1 |
| 65 | > 15 | ||||||||
| Kim et al[23] 2009 | Full text | Korea | 1 | 27 | 12, 15 | 70 | 15-38.3 | 15, 16.5 or 18 | 3 |
| 28 | 14, 14 | 70 | 15-48 | ||||||
| Kim et al[12] 2009 | Abstract | Korea | 1 | 104 | 53, 51 | 70 | > 10 | 12-20 | 1 |
| 100 | 49, 51 | 69 | > 10 | ||||||
| Stefanidis et al[24] 2011 | Full text | Greece | 1 | 45 | 24, 21 | 69 | 12-20 | 15, 18 or 20 | 4 |
| 45 | 22, 23 | 68 | 12-20 | ||||||
| Teoh et al[13] 2013 | Full text | Hong Kong | 2 | 73 | 32, 41 | 72 | ≥ 13 | 13-15 | 4 |
| 78 | 40, 38 | 73 | ≥ 13 | ||||||
1
Values are mean ± SD. EST: Endoscopic sphincterotomy; LBD: Large-balloon dilation.