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Table 2 Stratified analysis of CLBR after grouping age and number of retrieval oocytes

From: Cumulative live birth rates between GnRH-agonist long and GnRH-antagonist protocol in one ART cycle when all embryos transferred: real-word data of 18,853 women from China

Age

Before PSM

After PSM

Ovarian response

GnRH-a

GnRH-ant

GnRH-a

GnRH-ant

No embryo to transfer

362

70

87

36

Poor

151/587(25.72%)*

68/375(18.13%)*

29/150(19.33%)

60 /314(19.11%)

Suboptimal

2194/4679(46.89%)*

241/879(27.42%)*

266/689(38.61%)*

217/769(28.22%)*

Normal

3370/6105(55.20%)

185/356(51.97%)

232/467(49.68%)

176/317(55.52%)

High

2852/5094(55.99%)

183/346(52.89%)

162/311(52.09%)

168/299(56.19%)

  1. * Before PSM, poor responders: GnRH-a:GnRH-ant, OR = 1.56, 95%CI = 1.13–2.16, P = 0.007
  2. * Before PSM, suboptimal responders: GnRH-a:GnRH-ant, OR = 2.34, 95%CI = 1.99–2.74, P < 0.001
  3. *After PSM, suboptimal responders: GnRH-a:GnRH-ant, OR = 1.60, 95%CI = 1.28–1.99, P < 0.001
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