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Table 2 Analysis of clinical outcome

From: Effect of different artificial shrinkage methods, when applied before blastocyst vitrification, on perinatal outcomes

  Micro-needle AS Laser pulse AS P
FET cycles (n) 743 809  
Blastocyst survival rate (%) 94.05 (743/790) 95.40 (809/848) 0.221
Mean number of blastocysts thawed 1.07 ± 0.26 1.05 ± 0.21 0.096
Implantation/pregnancy rate (%, n) 54.37 (404/743) 60.82 (492/809) 0.010
Monozygotic twin rate (%, n) 1.73 (7/404) 4.07 (20/492) 0.042
Ectopic pregnancy rate (%, n) 0.74 (3/404) 1.22 (6/492) 0.707
Abortion rate (%, n) 15.84 (64/404) 15.04 (74/492) 0.741
Delivery cycles 337 412  
Live birth cycles 336 408  
Stillbirth cycles 1 4  
Live birth rate (%, n) 45.22 (336/743) 50.43 (408/809) 0.040