Predictive value of mid luteal progesterone concentration before luteal support in controlled ovarian hyperstimulation with intrauterine insemination.

Background: There is no published data assessing whether higher mid luteal serum progesterone (P4) levels are associated with a higher cycle pregnancy rate (CPR) in controlled ovarian hyperstimulation (COH) with intrauterine insemination (IUI).

Aims: To assess whether the mid luteal serum P4 level is predictive of pregnancy in COH with IUI.

Methods: A retrospective cohort study of all women with unexplained, minimal endometriosis or mild male factor infertility who underwent COH with IUI between October 1999 and December 2000 at our department was analysed.