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Table 4 Clinical characters and pregnancy outcomes of patients with < 8 mm or ≥ 8 mm endometrial thickness in subsequent embryo transfer cycle following surgical evacuation

From: Influence of surgical evacuation on pregnancy outcomes of subsequent embryo transfer cycle following miscarriage in an initial IVF cycle: a retrospective cohort study

 

< 8 mm

≥ 8 mm

P value

Number

23

472

 

Age (year)

31.6 ± 4.1

32.0 ± 4.8

0.52

BMI (kg/m2)

22.5 ± 2.8

22.7 ± 3.3

0.80

AFC (n)

14.7 ± 6.0

14.4 ± 5.7

0.58

Baseline FSH (IU/L)

7.1 ± 1.8

7.4 ± 2.4

0.57

Baseline LH (IU/L)

5.6 ± 4.3

4.9 ± 8.8

0.72

E2 on HCG day (pg/mL)

5405.9 ± 2483.9

4745.5 ± 2651.4

0.24

P on HCG day (ng/mL)

1.4 ± 0.9

1.0 ± 0.8

0.02

Endometrial thickness in first cycle (mm)

8.3 ± 1.0

10.1 ± 1.9

< 0.001

Endometrial thickness in second cycle (mm)

6.7 ± 0.3

9.3 ± 1.4

< 0.001

Endometrial thickness change (mm)

1.5 ± 1.0

0.8 ± 1.8

< 0.001

Gestational age of miscarriage (week)

9.5 ± 1.5

9.3 ± 2.3

0.65

Interval time between two cycles (day)

473.3 ± 228.5

377.4 ± 193.7

0.02

Times of cycle cancellation in second cycle (n)

1.1 ± 1.4

0.3 ± 0.6

< 0.001

Number of top quality embryos in second cycle (n)

1.4 ± 0.8

1.1 ± 0.8

0.06

Number of embryos transferred in second cycle (n)

1.9 ± 0.3

1.8 ± 0.4

0.14

Implantation rate in second cycle (%)

27.9 (12/43)

42.0 (348/829)

0.07

Clinical pregnancy rate in second cycle (%)

39.1 (9/23)

55.7 (263/472)

0.11

Live birth rate in second cycle (%)

17.4 (4/23)

43.0 (203/472)

0.02

Miscarriage rate in second cycle (%)

44.4 (4/9)

16.4 (43/263)

0.08