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Table 1 Comparison of clinical and embryologic characteristics in pregnant and nonpregnant groups

From: Mean blastomere diameter may predict clinical pregnancy in long agonist protocol intracytoplasmic sperm injection cycles with single embryo transfer

Parameters

Pregnant (n=28)

Nonpregnant (n=56)

p

Female age (yr.)

28.57 ± 3.26

28.93 ± 3.38

0.645

Male age (yr.)

33.32 ± 4.60

34.68 ± 5.06

0.236

Infertility duration (yr.)

5.63 ± 4.14

6.70 ± 5.01

0.222

Cause of infertility (%)

  

0.117a

Female factor

20 (39.2%)

31 (60.8%)

 

Mild male factor

8 (24.2%)

25 (75.8%)

 

Body mass index (kg/m2)

21.98 ± 1.22

21.91 ± 1.48

0.821

Basal FSH (mIU/mL)

6.07 ± 1.86

7.40 ± 4.23

0.195

Basal E2 (pg/mL)

61.75 ± 48.123

59.32 ± 23.25

0.801

Basal antral follicle count (no.)

12.67 ± 5.19

11.00 ± 6.60

0.257

Amount of total FSH used (IU/L)

1983.33 ± 305.95

2068.27 ± 348.11

0.288

Length of ovarian stimulation (day)

8.81 ± 1.36

9.17 ± 1.56

0.315

Endometrial thickness on HCG day (mm.)

9.28 ± 0.70

9.12 ± 0.67

0.306

Mean E2 on HCG day (pg/mL)

1643.65 ± 673.89

1380.34 ± 594.97

0.071

Number of MII oocyte retrieved

8.78 ± 4.32

8.25 ± 3.55

0.557

Grade I embryo (%)

22 (78.6%)

45 (80.4%)

0.530

Total fertilization rate (%)

64.94 ± 15.10

54.57 ± 20.80

0.201

Mean zona thickness (μm)

16.41 ± 2.68

16.11 ± 2.33

0.595

Mean blastomer diameter (μm)

52.09 ± 3.98

49.44 ± 3.62

0.003

  1. Values are given as mean ± SD or number of patients (percentage). Student’s T or aFischer’s exact chi-square tests were used for comparison