Table 3 Baseline characteristics in cycles that did or did not result in pregnancy after treatment by antagonist protocol.

From: Comparison of recombinant and urinary follicle-stimulating hormones over 2000 gonadotropin-releasing hormone antagonist cycles: a retrospective study

 

Pregnancy (482)

No pregnancy (1519)

p

Age (years)

≤28 y

149 (30.91%)

285 (18.76%)

<0.001

≤35 y

210 (43.57%)

560 (36.87%)

 

≤37 y

56 (11.62%)

160 (10.53%)

 

≤39 y

42 (8.71%)

159 (10.47%)

 

≤41 y

19 (3.94%)

153 (10.07%)

 

≥42 y

6 (1.24%)

202 (13.3%)

 

The times of ART

1–2

456 (94.61%)

1349 (88.81%)

<0.001

3-4

25 (5.19%)

145 (9.55%)

 

≥5

1 (0.21%)

25 (1.65%)

 

OSI

  

<0.001

≤0.1

26 (5.39%)

194 (12.81%)

 

≤0.3

199 (41.29%)

698 (46.07%)

 

≤0.5

172 (35.68%)

302 (19.93%)

 

≤0.6

19 (3.94%)

66 (4.36%)

 

≤0.8

35 (7.26%)

67 (4.42%)

 

≤1

18 (3.73%)

62 (4.09%)

 

≤1.2

5 (1.04%)

36 (2.38%)

 

>1.2

8 (1.66%)

90 (5.94%)

 

Basal FSH

8.38 (2.49)

8.68 (3.47)

0.04

Number of oocytes retrieved

8.4 (4.16)

8.47 (6.95)

0.768

Number of MII oocytes

7.57 (3.83)

7.51 (5.88)

0.788

Number of embryos transferred

1.8 (0.48)

0.69 (0.90)

<0.001

Duration of infertility (years)

3.81 (3.22)

4.57 (3.97)

<0.001

Cause of female infertility

cause1

101 (20.95%)

358 (23.57%)

0.063

cause2

235 (48.76%)

641 (42.2%)

 

cause3

138 (28.63%)

479 (31.53%)

 

cause4

8 (1.66%)

41 (2.7%)

 

Estradiol on day of HCG (pg/ml)

2215 (1218.36)

2435.07 (2001.18)

0.004

Progesterone on day of HCG (ng/ml)

0.86 (0.30)

1.06 (0.60)

<0.001

LH on day of HCG (mIU/ml)

3.25 (2.46)

3.73 (6.55)

0.017

Endometrial thickness (mm)

<7

8 (1.66%)

87 (5.85%)

<0.001

7–10

160 (33.20%)

579 (38.96%)

 

>10

314 (65.15%)

820 (55.18%)

 

Antral follicle count

9.59 (6.96)

9.21 (7.52)

0.3

BMI (kg/m2)

21.9 (2.85)

22.22 (2.84)

0.035

  1. Data are mean(SD) or number (percentage).
  2. BMI: body mass index (kg/m2);
  3. OSI: ovarian sensitivity index.
  4. Cause1: ovulation factor.
  5. Cause2: non-ovulation factor.
  6. Cause3: ovulation factor plus non-ovulation factor.
  7. Cause4: unexplained,etc.
  8. Gn: gonadotropin.
  9. aTwo-sample t-test.
  10. bPearsonχ2 test.