Table 1.

Clinical characteristics of patients.

	Endometriosis (n = 21)	Control (n = 25)
Age (years)	31.35 ± 0.90	30.73 ± 0.91
Infertility, n (%)	9 (50)	16 (64)
Primary	7	8
Secondary	2	8
Duration of infertility (months)	48.2 ± 19.4 (23–71)	50.8 ± 15.8 (13–71)
Ovarian cysts, n (%)
Endometrial	21 (100)	—
Simple	—	9 (36)

Data are mean ± SEM. Ranges are provided for “duration of infertility.”