Table 1. Quality evaluation of included RCTs.

Inclusion study	Design	Number		Random	Concealment	Blinding	Follow-up	Grade
		PAT	CG
A.Amin 2008	RCT	92	86	Y	Y	UC	Y	B
Adrianus 2007	RCT	80	80	Y	Y	UC	Y	B
C.soosman 2006	RCT	47	22	Y	Y	UC	Y	B
Konstantino2010	RCT	163	85	Y	UC	UC	Y	C
Newman 1997	RCT	35	35	Y	UC	UC	Y	B
T.abuzakuk 2007	RCT	52	52	Y	UC	UC	Y	B

RCTs: Randomized controlled trials; PAT: Post-operative autotransfusion group; CG: Control group; Y: Yes; UC: Unclear.