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Table 4 Reproductive outcomes per FET cycle

From: Reproductive outcomes in women with unicornuate uterus undergoing in vitro fertilization: a nested case-control retrospective study

  Unicornuate uterus Control OR (95% CI) p-value
n = 342 women n = 1026 women  
Cleavage day-3 FET cycles, n 93 214   
 Embryos survival rate, % (n) 90.2% (203/225) 91.9% (475/517)   p = 0.478
 Embryos per transfer, mean ± SD 2.18 ± 0.59 2.21 ± 0.68   p = 0.743
 Implantation rate, % (n) 16.7% (34/203) 20.4% (97/475) 0.820 (0.575–1.169) p = 0.267
 Clinical pregnancy, % (n) 32.3% (30/93) 35.5% (76/214) 0.908 (0.643–1.283) p = 0.581
 Miscarriage rate, % (n) 6.7% (2/30) 9.2% (7/76) 0.724 (0.159–3.288) p = 0.672
 Live birth rate, % (n) 30.1% (28/93) 32.2% (69/214) 0.934 (0.648–1.346) p = 0.712
 Multiple live birth rate, % (n) 4.3% (4/93) 9.8% (21/214) 0.438 (0.155–1.241) p = 0.105
Blastocyst FET cycles, n 125 207   
 Embryos survival rate, % (n) 97.9% (141/144) 98.7% (234/237)   p = 0.677
 Embryos per transfer, mean ± SD 1.13 ± 0.34 1.13 ± 0.34   p = 0.949
 Implantation rate, % (n) 34.0% (48/141) 36.8% (86/234) 0.926 (0.697–1.231) p = 0.596
 Clinical pregnancy, % (n) 36.8% (46/125) 40.1% (83/207) 0.918 (0.619–1.219) p = 0.550
 Miscarriage rate, % (n) 21.7% (10/46) 10.8% (9/83) 2.005 (0.878–4.576) p = 0.094
 Live birth rate, % (n) 28.8% (36/125) 35.7% (74/207) 0.806 (0.579–1.121) p = 0.192
 Multiple live birth rate, % (n) 1.6% (2/125) 1.4% (3/207) 1.104 (0.187–6.516) p = 0.913
  1. FET frozen embryo transfer, CI confidence interval, OR odds ratio, SD standard deviation