Table 1.

Profiles of the patients in this study

	Control (N = 20)	Half dose (N = 20)	Early administration (N = 21)
Age of women (years)	33.6 ± 4.1	33.3 ± 4.8	33.0 ± 4.8
Causes of infertitlity
Ovulation	8	8	7
PCOS	1	1	2
Male factor	0	1	0
Unexplained	11	10	12
Endometrial thickness during the standard CC treatment cycle (mm)	6.8 ± 0.9	6.4 ± 0.8	6.3 ± 1.1

Data are shown as the mean ± SD.