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Table 2 Clinical characters and pregnancy outcomes in subsequent embryo transfer cycle of no surgical evacuation and surgical evacuation patients

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

 

No surgical evacuation

Surgical evacuation

P value

Number

150

495

–

Age (year)

32.1 ± 5.0

32.0 ± 4.8

0.85

BMI (kg/m2)

22.4 ± 3.2

22.6 ± 3.3

0.48

AFC (n)

14.4 ± 5.8

14.5 ± 5.8

0.95

Baseline FSH (IU/L)

7.3 ± 2.0

7.4 ± 2.4

0.58

Baseline LH (IU/L)

4.6 ± 3.7

4.6 ± 3.3

0.98

E2 on HCG day (pg/mL)

4510.2 ± 2613.1

4776.3 ± 2645.2

0.28

P on HCG day (ng/mL)

1.0 ± 1.2

1.0 ± 0.8

0.69

gestational age of miscarriage (week)

8.5 ± 1.9

9.3 ± 2.3

< 0.001

Interval time between two cycles (day)

300.0 ± 157.9

387.3 ± 192.2

< 0.001

Times of cycle cancellation before second cycle (n)

0.3 ± 0.8

0.4 ± 0.7

0.86

Endometrial thickness in first cycle (mm)

10.0 ± 1.7

10.0 ± 1.9

0.86

Endometrial thickness in second cycle (mm)

9.5 ± 1.9

9.0 ± 1.6

0.01

Endometrial thickness change (mm)

0.4 ± 1.6

0.8 ± 1.8

< 0.001

Number of embryos transferred in first cycle (n)

1.9 ± 0.3

1.9 ± 0.3

0.67

Number of embryos transferred in second cycle (n)

1.7 ± 0.5

1.8 ± 0.4

0.50

Number of top quality embryos in second cycle (n)

0.9 ± 0.8

1.1 ± 0.8

0.03

Rate of blastocyst embryo in second cycle (%)

26.7 (40/150)

24.6 (122/495)

0.59

Rate of endometrial thickness < 8 mm in second cycle (%)

18.7 (28/150)

17.2 (85/495)

0.67

Implantation rate in second cycle (%)

39.1 (102/261)

41.3 (360/872)

0.53

Clinical pregnancy rate in second cycle (%)

55.3 (83/150)

54.6 (270/495)

0.87

Live birth rate in second cycle (%)

46.0 (69/150)

41.8 (207/495)

0.36

Miscarriage rate in second cycle (%)

13.3 (11/83)

17.4 (47/270)

0.37