Safety and efficacy of single-incision laparoscopic surgery for appendectomies: A meta-analysis

Table 2 Main characteristics of the six included studies in children

Ref.	Year	SILS-A (n)	C-LA (n)	Age		M:F
				SILS-A	C-LA	SILS-A	C-LA
Perez et al[33]	2012	25	25	8.7 ± 0.6	8.9 ± 0.6	10:15	15:10
Chandler et al[34]	2010	50	45	11.1 ± 3.6	11.7 ± 3.8	26:24	34:11
Mayer et al[35]	2011	8	31	12.3 ± 2.4	12.3 ± 2.4
St Peter et al[36]	2011	180	180	11.1 ± 3.5	11.1 ± 3.3	99:81	92:88
Knott et al[37]	2012	135	139	11.0 ± 3.5	10.9 ± 3.4	72:63	70:69
Kang et al[38]	2011	30	25	9.3 ± 4.0	8.7 ± 3.5	17/13	14/11

SILS-A: Single-incision laparoscopic surgery for appendectomy; C-LA: Conventional laparoscopic appendectomy; M: Male; F: Female.