Impact of progestin ovarian stimulation on newborn outcomes: a meta-analysis.

Objectives: To compare progestin ovarian stimulation protocols with gonadotropin-releasing hormone analogue (agonists and antagonists) protocols on newborn outcomes.

Methods: The PubMed, Embase, Cochrane Central Register of Controlled Trials, and BioMed Central databases were searched for studies comparing progestin prime ovarian stimulation (PPOS) protocols with gonadotropin-releasing hormone analogues. Data were pooled by meta-analysis using a random effects model.