Comparison of Clinical Safety and Outcomes of Early versus Delayed Laparoscopic Cholecystectomy for Acute Cholecystitis: A Meta-Analysis

Table 1

Baselines of included studies.

Studies	Year	Countries	Number of patients (ELC : DLC)	Average age	Females
Gutt et al. [7]	2013	Germany	618 (304 : 314)	56 years old	363 (58.7%)
Yadav et al. [8]	2009	Nepal	50 (25 : 25)	41 years old	38 (76%)
Kolla et al. [9]	2004	India	40 (20 : 20)	40 years old	32 (80%)
Johansson et al. [10]	2003	Sweden	145 (74 : 71)	57 years old	87 (60%)
Davila et al. [11]	1999	Spain	63 (27 : 36)	56 years old	45 (71.4%)
Lai et al. [12]	1998	Hong Kong, China	104 (53 : 51)	56 years old	66 (63.5%)
Lo et al. [13]	1998	Hong Kong, China	86 (45 : 41)	60 years old	39 (43.3%)