Table 3. GnRH antagonist versus GnRH-a (long protocol and fl are-up) : number of mature oocyte
Trail	GnRHantagonist	mean±sd		GnRHagonist	mean±sd	Mean diff	95% CIfixed
Long protocol
Cheunget al., 2005	19	5.32±2.73		21	5.0±3.26	0.32	(-1.55, 2.19)
D’Amato Et al., 2004	81	4.29±0.95		40	2.65±1.12	1.64	(1.25, 2.02)
Fixed effects (Mulrow-Oxman) Pooled effect size Z (teste WMD + differs from 0) = 7.84 p<0.0001Non-combinability / Cohran Q = 1.85 (df =1) p = 0.17			WMD = 1.58 (1.18 to 1.97)
Flare-up
Akmanet al., 2001	20	4.0±1.8		20	4.5±1.9	-0.5	(-1.65, 0.65)
Malmusiet al., 2005	18	1.7±1.2		24	3.2±1.5	-1.5	(-2.34,-0.65)
Schmidtet al., 2005	13	7.7±0.9		11	6.5±1.1	1.2	(0.40,1.99)
Fixed effects (Mulrow-Oxman) Pooled effect size Z (teste WMD + differs from 0) = -0.82 p = 0.41Non-combinability / Cohran Q = 21.36 (df =2) p < 0.0001			WMD = -0.216 (-0.73 to 0.30)