1. Data from Chian 2000 study.

	Chian 2000
	no priming	10,000 units hCG
Cycles	11	13
No. of retrieved oocytes (mean ± SE)	81 (7.4 ± 5.2)	102 (7.8 ± 3.9)	ns
No. of oocytes matured at 48 hours (%)	56 (69.1)	86 (84.3)	P < 0.05
No of oocytes fertilised (%)	47 (83.9)	78 (90.7)	ns
No. of oocytes cleaved (%)	45 (95.7)	74 (94.9)	ns
No. of embryos transferred (mean ± SE)	27 (2.5 ± 1.1)	36 (2.8 ± 0.9)	ns
No. of clinical pregnancies (%)	3 (27.3)	5 (38.5)	ns

Data from study in which results were not expressed per woman randomised

ns = non significant