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Table 1 Clinical characteristics of infertile women during their first IVF treatment cycle by pregnancy outcome

From: Association between endometrial indoleamine 2,3-dioxygenase expression level and pregnancy outcomes in women undergoing first in vitro fertilization treatment

Maternal characteristics

Pregnant (n=90)

Not pregnant (n=50)

P-value

Live birth (n=80)

No live birth (n=60)

P-value

Maternal age (y)

31.7 ± 3.9

32.3 ± 4.6

0.417

31.9 ± 3.9

32.0 ± 4.6

0.866

Maternal BMI (kg/m2)

21.5 (19.9-23.4)

20.6 (19.2-23.4)

0.220

21.5 (19.9-23.3)

20.7 (19.3-23.4)

0.366

Type of infertility

  

0.207

  

0.261

 Primary

46 (51.1%)

20 (40.0%)

 

41 (51.3%)

25 (41.7%)

 

 Secondary

44 (48.9%)

30 (60.0%)

 

39 (48.7%)

35 (58.3%)

 

Infertility duration (y)

3.0 (1.0-4.0)

2.0 (1.0-3.0)

0.265

3.0 (1.0-4.0)

2.0 (1.0-3.0)

0.226

Baseline FSH level (IU/L)

5.5 (4.2-6.8)

6.3 (4.6-7.0)

0.169

5.5 (4.2-6.7)

6.3 (4.8-7.1)

0.058

Duration of gonadotropin stimulation (d)

9.0 (8.0-10.0)

10.0 (9.0-10.3)

0.083

9.0 (8.0-10.0)

10.0 (9.0-10.0)

0.039

Total dose of gonadotropin (IU)

2263.3 ± 694.7

2504.3 ± 650.0

0.046

2292.7 ± 692.8

2425.0 ± 676.3

0.260

Serum E2level (pg/mL) on hCG day

2461.5 (1766.5-3785.0)

1998.0 (1528.3-2834.5)

0.116

2510.0 (1793.0-3902.5)

1998.0 (1566.8-2806.5)

0.063

EMT (mm) on hCG day

11.0 (10.0-13.0)

11.0 (10.0-13.0)

0.406

11.0 (10.0-13.0)

11.0 (10.0-12.8)

0.711

No. of oocyte retrieved

13.0 (10.0-15.0)

11.5 (8.8-15.3)

0.248

13.0 (10.3-15.8)

12.5 (9.0-15.0)

0.177

No. of fertilized occytes

10.0 (7.8-13.0)

9.0 (7.0-12.3)

0.419

10.0 (8.0-13.0)

9.0 (7.0-12.0)

0.255

No. of embryos transferred

2 (1-2)

2 (1-2)

0.836

2 (1-2)

1 (1-2)

0.160

Cycles with different technologies

  

0.932

  

0.956

 IVF

66 (73.3%)

37 (74.0%)

 

59 (73.8%)

44 (73.3%)

 

 ICSI

24 (26.7%)

13 (26.0%)

 

21 (26.2%)

16 (26.7%)

 

Embryo type

  

0.180

  

0.640

 Cleavage embryo

26 (28.9%)

20 (40.0%)

 

25 (31.3%)

21 (35.0%)

 

 Blastocyst

64 (71.1%)

30 (60.0%)

 

55 (68.7%)

39 (65.0%)

 

Embryo quality

  

0.134

  

0.074

 Cycle with high-quality embryos

87 (96.7%)

45 (90.0%)

 

78 (97.5%)

54 (90.0%)

 

 Cycles without high-quality embryos

3 (3.3%)

5 (10.0%)

 

2 (2.5%)

6 (10.0%)

 
  1. Note: BMI body mass index, E2 estradiol, EMT endometrial thickness, IVF in vitro fertilization, ICSI intracytoplasmic sperm injection, hCG human chorionic gonadotropin
  2. Values are numbers (percentages) of cases, mean ± standard deviation or median (interquartile range)
  3. Continuous variables: Mann-Whitney U-test or independent t-test; categorical variables: Chi-square test or Fisher’s exact test
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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