Skip to main content

Table 3 Comparison of baseline data and cycle characteristics in ICSI cycles between pregnant and non-pregnant patients (clinical pregnancy).

From: Impact of GnRH ovarian stimulation protocols on intracytoplasmic sperm injection outcomes

Parameters Pregnant Non-Pregnant Pvalue
Number of cycles 84 186  
Female age (years) 31.4 ± 3.8 33.3 ± 4.8 .006
Duration of infertility (years) 3.9 ± 2.7 4.9 ± 3.5 .018
Type of infertility    .202
   Primary (never pregnant) 75 (89.3) 154 (82.8)  
   Secondary 9 (10.7) 32 (17.2)  
Type of protocol    .233
   Antagonist 42 (50.0) 109 (58.6)  
   Agonist 42 (50.0) 77 (41.4)  
Number of attempts 1.3 ± 0.8 1.6 ± 1.1 .001
Basal FSH (mIU/ml) 5.8 ± 1.9 6.6 ± 2.5 .025
Basal E2 (pg/ml) 54.8 ± 48.6 61.6 ± 63.0 .367
BMI (Kg/m 2 ) 23.1 ± 3.7 22.9 ± 3.4 .846
Total ovarian volume (cm 3 ) 13.4 ± 7.8 11.9 ± 5.7 .252
Total number of antral follicles 6.4 ± 4.1 6.0 ± 3.7 .694
Initial FSH dose (IU) 190.8 ± 53.3 212.2 ± 66.6 .009
Total rFSH administered (IU) 1961.3 ± 884.3 2210.7 ± 928.7 .012
Duration of rFSH administration (days) 9.8 ± 2.2 10.0 ± 2.6 .503
Number of follicles ≥ 17 mm 4.4 ± 2.1 4.3 ± 2.0 .765
Number of retrieved oocytes 10.2 ± 4.6 9.6 ± 5.8 .070
Number of metaphase II oocytes 8.7 ± 4.2 7.8 ± 4.7 .031
Number of fertilized oocytes 6.7 ± 3.5 5.7 ± 3.6 .013
Number of cleaved embryos 6.5 ± 3.4 5.5 ± 3.6 .008
Number of transferred embryos 2.2 ± 0.7 2.2 ± 0.7 .958
Embryo transfer day    1.000
   Day 3 56 (66.7) 124 (66.7)  
   Day 5 28 (33.3) 62 (33.3)  
Number of high quality embryos transferred    .802
   1 12 (14.3) 29 (17.6)  
   2 50 (59.5) 94 (57.0)  
   3 22 (57.8) 42 (25.5)  
Endometrial thickness (mm) 10.6 ± 1.6 10.2 ± 1.5 .038
Serum E2 on hCG administration day (pg/ml) 1885.3 ± 1009.8 1963.0 ± 1168.4 .803
  1. Data in N, N (%) or mean ± standard deviation.