Long GnRH agonist Vs GnRH Antagonist LBR LBR 1.02 OR 0.85, 1.23 Al‐Inany Cochrane review 2016 Long GnRH agonist Vs GnRH Antagonist OHSS Rate 290/4474 (6%) versus 396/3470 (11%) OR 0.61, 95%CI 0.51 to 0.72 16 88 Page 84 of 258