Table 1 Patient and IVF cycle characteristics in women above age 43 with VER, ER and SR

Number of Patients

17

24

15

Average age (years)

44.9 ± 0.3

44.6 ± 0.3

45.0 ± 0.6

FSH (mIU/ml)

12.6 ± 3.3

9.3 ± 1.0

12.8 ± 5.9

AMH (ng/ml)

0.7 ± 0.2

0.8 ± 0.1

1.1 ± 0.3

P4/E2 ratio on hCG trigger day

2.3 ± 0.3

2.0 ± 0.3

2.1 ± 0.3

Retrieved oocytes

3.9 ± 0.6

5.6 ± 0.8

4.8 ± 1.0

Mature oocytes

2.0 ± 0.5

3.4 ± 0.5

2.4 ± 0.8

% of mature oocytes

53.5 ± 8.7

66.0 ± 5.5

51.1 ± 10.5

Immature oocytes

1.7 ± 0.4

1.4 ± 0.3

2.0 ± 0.8

% of immature oocytes

41.5 ± 8.2

22.8 ± 5.1

43.9 ± 10.5

Atretic oocyte/patient

0.3 ± 0.1

0.8 ± 0.3

0.3 ± 0.2

% of atretic oocyte

7.4 ± 3.6

11.2 ± 3.5

4.8 ± 2.6

Fertilized oocytes

2.3 ± 0.4

3.0 ± 0.5

2.9 ± 0.6

Total transferable embryos

2.0 ± 0.3

2.7 ± 0.4

2.3 ± 0.6

High quality embryos

0.9 ± 0.1^a

2.3 ± 0.4^b

0.7 ± 0.2^a

% of high quality embryos

52.3 ± 8.7^a

83.8 ± 5.8^b

34.0 ± 13.2^a

Pregnant rate

5.9% (1/17)^a

16.7% (4/24)^b

6.7% (1/15)^a