Table 1.

Baseline characteristics of included studies

References	Group	NO. of patients	Mean age (years)
Coelho 2010 [9]	RALP	250	60.4
	LRP	250	62.9
Drouin 2009 [10]	RALP	71	60.4
	LRP	85	61.8
Ficarra 2007 [11]	RALP	40	62.8
	LRP	40	63.1
Finkelstein 2010 [12]	RALP	2841	61.3
	LRP	168	63.6
Hakimi 2009 [13]	RALP	75	59.8
	LRP	75	59.6
Hu 2006 [14]	RALP	322	63.7
	LRP	358	62.1
Joseph 2005 [15]	RALP	50	59.6
	LRP	50	61.8
Magheli 2011 [16]	RALP	522	58.3
	LRP	522	58.4
Menon 2002 [17]	RALP	40	60.7
	LRP	40	62.8
Papachristos 2015 [18]	RALP	100	60.5
	LRP	100	62.5
Park 2013 [19]	RALP	183	63
	LRP	144	67
Porpiglia 2013 [20]	RALP	60	63.9
	LRP	60	64.7
Rozet 2007 [21]	RALP	133	62
	LRP	133	62.5
Tozawa 2014 [22]	RALP	157	67
	LRP	551	67.4
Trabulsi 2011 [23]	RALP	205	59.9
	LRP	45	58.1
Willis 2012 [24]	RALP	121	58.1
	LRP	161	58