Table 3.

-Summary of included trials/ observational studies in included systematic reviews /meta-analyses

		SRs																			MAs
RCTs		Samson,2004	Pham C, 2006	Noble-Bell G, 2008	Vikatmaa, P., 2008	Hinchliffe RJ. 2008	Ubbink DT, 2008a	Ubbink DT, 2008b	Health Quality O, 2010	X. Xie 2010	C.A. Fries,2011	Game, F. L.,2012	Yarwood, 2012	Quecedo, L, 2013	Greer N, 2013	Dumville JC, 2013	Guffani A, 2014	Peters E.J, 2016	Game, F. L. 2016	Gonzalez-Ruiz, M,2018	Gregor S, et al.2008	Zhang J,2014	*Wang R, 2015	Liu, Si, 2017
	McCallon et al., [42]	√	√	√	√	√	√	√		√	√			√							√	√	√	√
	Eginton et al., [41]	√	√	√	√	√	√	√		√	√		√	√	√					√	√	√		√
	Armstrong et al., [46]			√	√		√		√	√	√		√	√		√	√				√	√	√	√
	Etoz et al., [45]			√	√	√	√			√	√			√			√			√	√	√	√	√
	Akbari et al., [47]									√										√			√
	Blume et al., [8]								√	√		√	√		√	√	√			√		√	√	√
	Mody et al., [53]															√
	Sepulveda et al., [48]									√		√		√			√			√		√	√	√
	Novinscak et al., [54]															√
	Nain et al., [55]																		√	√		√	√	√
	Karatepe et al., [50]														√	√			√	√		√	√	√
	Paola et al. 2010												√					√	√
	Ravari et al., [60]																							√
	vaidhya et al., [59]																							√
	[58]																							√
	Sajid et al., [61]																							√
	Lavery et al., [64]																			√
	Lone et al.[63]																			√
	Lavery et al., [62]																			√
	Yang et al. [65]																			√
	Apelqvist et al. [51]																			√
observational	Armstrong et al., [44]		√
	Frykberg et al., [49]											√

SRs systematic reviews, M/As meta-analyses, RCTs randomized controlled trails

*only represent included RCTs