Table 2.
Basic demographic characteristics of the patients in the included studies.
| Study | Group | Number of patients | Age (years) | Gender (M/F) | Etiology | ||
|---|---|---|---|---|---|---|---|
| Gallstones | Alcohol | Idiopathic | |||||
| Eatock et al., 2005 [19] | NG | 27 | 63△ (47–74) | 14/13 | 16 | 6 | 3 |
| NJ | 22 | 58△ (48–64) | 12/10 | 16 | 6 | 0 | |
|
| |||||||
| Kumar et al., 2006 [18] | NG | 16 | 43.25∗ (12.76) | 14/2 | 7 | 4 | 4 |
| NJ | 14 | 35.57∗ (12.53) | 11/3 | 4 | 4 | 5 | |
|
| |||||||
| Singh et al., 2012 [20] | NG | 39 | 39.1∗ (16.7) | 28/11 | 12 | 12 | 9 |
| NJ | 39 | 39.7∗ (12.3) | 25/14 | 21 | 10 | 7 | |
|
| |||||||
| Zonghan et al., 2015 [25] | NG | 40 | 41∗ (25–60) | 23/17 | 13 | 20 | 0 |
| NJ | 40 | 43 (23–65) | 22/18 | 12 | 20 | 0 | |
△The values are presented as medians (range). ∗The values are presented as the mean ± standard deviations.