Table 2 Comparisons of cycle parameters

 1

41 (45.56)

172 (42.68)

0.70

19 (61.29)

74 (56.06)

0.74

 2

22 (24.44)

107 (26.55)

0.78

5 (16.13)

29 (21.97)

0.64

  ≥ 3

27 (30)

124 (30.77)

0.99

7 (22.58)

29 (21.97)

0.87

 1

51 (68)

225 (65.41)

0.77

21 (67.74)

95 (71.97)

0.8

 2

16 (21.33)

89 (25.87)

0.5

7 (22.58)

29 (21.97)

0.87

  ≥ 3

8 (10.67)

30 (8.72)

0.76

3 (9.68)

8 (6.06)

0.75

OPU cycles per patient

2.1 ± 1.4

2.2 ± 1.5

0.65

1.8 ± 1.2

1.8 ± 1.4

0.72

ET cycles per patient

1.3 ± 1.1

1.3 ± 0.9

0.50

1.5 ± 0.8

1.4 ± 0.6

0.14

Oocytes retrieved per patient

5.3 ± 4.0

5.7 ± 4.5

0.68

6.3 ± 4.2

6.8 ± 4.6

0.51

2PN per patient

3.4 ± 2.9

3.7 ± 2.9

0.35

4.1 ± 2.8

4.6 ± 2.9

0.10

Embryos per patient

3.0 ± 2.6

3.1 ± 2.5

0.34

3.6 ± 2.1

3.9 ± 2.2

1.00

Good-quality embryos per patient

1.2 ± 1.4

1.2 ± 1.2

0.25

1.6 ± 1.2

1.6 ± 1.1

0.91

Embryos transferred per patient

2.3 ± 2.1

2.3 ± 1.8

0.09

2.8 ± 1.8

2.6 ± 1.4

0.41

Oocytes retrieved per cycle

3.0 ± 2.3

3.2 ± 2.7

0.33

4.1 ± 2.1

4.5 ± 3.0

0.13

2PN per cycle

1.9 ± 1.7

2.1 ± 1.9

0.98

2.76 ± 1.64

3.10 ± 2.07

0.41

Embryos per cycle

1.7 ± 1.6

1.8 ± 1.6

0.66

2.42 ± 1.32

2.68 ± 1.67

0.24

Good-quality embryos per cycle

0.7 ± 0.9

0.7 ± 0.9

0.84

1.19 ± 1.00

1.16 ± 0.98

0.74

Embryos transferred per cycle

1.5 ± 0.8

1.6 ± 0.8

0.54

1.85 ± 0.41

1.91 ± 0.47

0.98

2PN%

306/478 (64.0%)

1500/2308 (65.0%)

0.69

128/195 (65.6%)

602/897 (67.1%)

0.69

Embryos% (per oocyte)

267/478 (55.9%)

1256/2308 (54.4%)

0.57

110/195 (56.4%)

518/897 (57.8%)

0.73

Good-quality embryos% (per oocyte)

107/478 (22.4%)

467/2308 (20.2%)

0.29

49/195 (25.1%)

208/897 (23.2%)

0.56