The optimal duration of progesterone supplementation in pregnant women after IVF/ICSI: a meta-analysis

Table 1 Characteristics of the studies included in this review

Study Author, year	Timing of randomisation	ART	COH protocols	Total	Initiation of P	Dose & route of administration	No.	Early P cessation group	No.	Continuation group
Kohls, 2012	Clinical pregnancy	IVF/ICSI	GnRH-anta	220	OR	vaginal P 200mg bid	110	week 5	110	week 8
Kyrou, 2011	Positive hCG test	IVF/ICSI	GnRH-anta	200	ET	vaginal P 200mg tid	100	the 16^th day post-ET	100	week 7
Goudge, 2010	COH	IVF	GnRH-a/GnRH-anta	101	ET/OR	IM P50mg qd	53	the 11^th day post-ET	48	week 6
Aboulghar, 2008	Clinical pregnancy	ICSI	GnRH-a	257	Unstated	IM or vaginal P	125	week 6-7	132	week 9-10
Andersen, 2002	Positive hCG test	IVF/ICSI	GnRH-a	303	ET	vaginal P 200mg tid	150	the 14^th day post-ET	153	week 7
Prietl, 1992	Positive hCG test	IVF	CC/hMG/GnRH-a	120	Unstated	PC500mg/EV10mg tiw	65	the 12^th day post-ET	55	week 12

ISSN: 1477-7827