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Table 1 Demographic and clinical characteristics of pregnant and non-pregnant patients undergoing HRT-FET

From: Pregnancy prediction via ultrasound-detected endometrial blood for hormone replacement therapy-frozen embryo transfer: a prospective observational study

Characteristic

Pregnant group

Non-pregnant group

P-value

No. of patients

174

116

---

Age (years)

31.57 ± 4.41

33.07 ± 4.24

0.004

BMI (kg/m2)

21.80 (19.88 − 23.43)

22.60((20.03 − 24.00)

0.109

AMH (ng/mL)

3.20(1.68 − 5.84)

2.67(1.63 − 4.90)

0.101

AFC

12.0 (8.0 − 17.0)

10.0 (6.0 − 14.0)

0.004

Primary infertility (n, %)

90 (51.72)

59 (50.86)

0.886

Cause of infertility (n, %)

  

0.426

Tubal

118 (67.82)

81 (69.83)

 

Aovulatory

8(4.60)

6 (5.17)

 

DOR

17 (9.77)

16(13.79)

 

Endometriosis

Male

5 (2.87)

1(0.86)

 

Unexplained

3 (1.72)

0 (0.00)

 

Male factor

23 (13.22)

12 (10.34)

 

No. of embryos transferred

1.56 ± 0.50

1.48 ± 0.50

0.180

Blastocysts transfer cycles (n, %)

107 (61.49)

60 (51.72)

0.099

Good quality embryos transfer cycles (n, %)

138 (79.31)

86 (74.14)

0.303

  1. Values are means ± SD or number (percentage) of patients. Abbreviations: BMI body mass index; AMH anti-Müllerian hormone; AFC antral follicle; DOR Decreased ovarian reserve.