Table 1.

Baseline characteristics of patients in both groups. Data are mean ± s.e. or n (%) unless otherwise specified.

Variable	Group A	Group B	P-value
Age	35.34 ± 4.7	35.35 ± 4.9	0.99
BMI (kg/m2)	28.44 ± 6.8	28.11 ± 6.6	0.64
Diagnosis			0.94
Male factor	70	66
Unexplained	23	32
Tubal factor	43	45
Ovulatory dysfunction	58	51
Endometriosis	17	17
Diminished ovarian reserve	50	51
Other	15	14
Endometrial thickness (mm)	10.5 ± 2.1	10.3 ± 1.9	0.40
Estradiol level on CD 15 (pg/mL)	925.7 ± 497.5	967.7 ± 528.5	0.46
Progesterone level on CD 16 (ng/mL)	24.7 ± 116.6	24.4 ± 85.3	0.98
Trigger medication
HCG	178	160	0.18
Lupron	39	52	0.13
Positive pregnancy test rate (%)	139/249 (55.8)	140/244 (57.3)	0.40
Clinical pregnancy rate (%)	117/249 (47)	119/244 (48.7)	0.36