Table 2 Comparisons of outcomes between cycles preparing sperm with GC and SU

Recovery rate, %

21.0 (13.3–29.7)

21.2 (14.1–29.6)

−0.018 (− 0.064–0.028)^a

0.439

PR after preparation, %

85 (81–87)

87 (84–88)

−0.002 (− 0.011–0.007)^a

0.624

Fertilization rate, %

71.0 (25.5)

69.8 (25.5)

0.017 (−0.020–0.055)^a

0.363

Good-quality embryo rate, %

48.0 (30.5)

47.3 (29.9)

0.025 (−0.042–0.092)^a

0.466

Blastocyst formation rate, %

52.2 (25.2)

51.3 (25.6)

−0.001 (− 0.079–0.077)^a

0.978

cLBR, % (n/n)

62.7 (451/719)

58.7 (422/719)

1.143 (0.893–1.461)^b

0.289

LBR per transfer, % (n/n)

45.5 (457/1004)

42.9 (427/995)

1.082 (0.896–1.307)^b

0.413