GNRH1 and ovarian hyperstimulation syndrome: The results showed that there was no evidence of a statistically significant difference in the rates of live births (OR 0.86, 95% CI 0.69 to 1.08), and there was a statistically significant lower incidence of OHSS in the GnRH antagonist group (OR 0.43, 95% CI 0.33 to 0.57) [14].