TABLE 1.

Demographic and clinical characteristics of all study participants

	Pregnant N = 57	Not pregnant N = 34	P-value
Age (years)	32.9 ± 3.3	32.1 ± 3.7	0.25
BMI (kg/m2)	25.7 ± 5.6	24.6 ± 3.8	0.3
Previous live birth	15	4	0.09
History of known endometriosis	1	6	0.01
Ovulation disorder	11	6	0.84
Fallopian tube abnormality	12	8	0.78
Male factor infertility	18	14	0.38
Unexplained infertility	14	5	0.26
Number of embryos transferred	2.2 ± 0.6	2.3 ± 0.6	0.56