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Table 4 Outcome parameters in Group IV (combined scoring) where only Pattern "0" embryos with either EC or NEC were transferred

From: Evaluation of day one embryo quality and IVF outcome – a comparison of two scoring systems

  "0" + EC "0" + NEC p
Number of cycles 50 39  
Maternal age (mean ± SD) 30.3 ± 4.0 31.6 ± 3.4 >0.5
Total number of embryos transferred 75 75  
Mean ± SD embryos/cycle 1.5 ± 0.5 1.9 ± 0.5 0.000
Biochemical pregnancies 30 17  
bPR (%) 60 44 >0.5
Clinical pregnancies 28 12  
cPR (%) 56 31 0.020
Number of gestational sacs by US 32 20  
IR (%) 43 27 0.038