IVF success rates

Access advanced IVF treatment facilities in Singapore

As a patient with Virtus Fertility Centre in Singapore, you will have access to the region’s leading IVF and fertility specialists, as well as pioneering doctors and scientists from the world’s most successful fertility Group, Virtus Health.

Every couple’s situation is unique, and at your initial consultation your fertility specialist will give you an indication of your likelihood of conceiving. However, assisted conception nowadays provides the highest possible chance of starting a family, as the success of assisted reproductive technology has overtaken natural conception.

What is my chance of falling pregnant with IVF?

When it comes to IVF, there is no agreed standard for reporting “success”. Sometimes IVF success rates are quoted per completed IVF treatment cycle - a complete IVF collection and treatment cycle can involve multiple transfers of embryos collected from the one egg collection.  Success rates measured this way will therefore naturally be higher than success rates measured per embryo transfer.

At Virtus Fertility Centre, we most often measure IVF success rates as clinical pregnancies (a pregnancy confirmed by a blood test and ultrasound scan, usually at around 6-8 weeks) per embryo transfer. Sadly, not every pregnancy will carry to a live birth, so we also measure live births per embryo transfer. We report our success rates per embryo transfer as we want to give you the most realistic understanding of your chance of success following each individual embryo transfer.
However, it is important to understand that not every treatment cycle will result in an embryo transfer. For some women, no eggs will be collected and, sometimes after eggs have been collected, there may be no transfer because embryos have not developed.

It is therefore important to understand what part of the IVF treatment cycle a particular statistic is measuring.  Even after you check this, there are factors that need to be understood before you attempt to compare IVF success rates.  For example:

  • The most important factor determining IVF success rates is a woman’s age: When comparing IVF success rates, check you are comparing rates for women of the same age. If ‘whole of clinic’ rates are quoted, consider whether the clinic might, overall, have older or younger clients than average – or do they perhaps send their more difficult cases to a different clinic altogether?
  • Ask how often a clinic transfers more than one embryo with each transfer: More embryos per transfer may make success rates appear higher, but Virtus Fertility Centre mostly performs single embryo transfers, as multiple embryo transfers can also increase the risks of multiple births, low birthweight and premature births.
  • Check whether the data includes processes like ICSI, or includes frozen embryo transfers or only ‘fresh’ embryo transfers.

Virtus Fertility Centre is part of one of the world's largest fertility groups.
 
To optimise the chances of successful pregnancy after embryo transfer, Virtus Fertility Centre has an elective 'freeze all' approach which involves freezing all embryos to be used later in a natural cycle, or in a cycle with hormonal replacement to prime the endometrium. Our 'freeze-all' approach to treatment has shown good pregnancy outcomes in all age groups.

Majority of the cycles performed at Virtus Fertility Centre are frozen embryo transfers and the following table shows the clinical pregnancy rate per frozen embryo transfer, cumulative clinical pregnancy rate per egg retrieval (OPU) resulting in a frozen embryo transfer and live birth rates across four age groups at Virtus Fertility Centre for year 2016, 2017 and 2018.

IVF Success Rate Statistics

Clinical pregnancy rate per frozen embryo transfer

2016
2017
2018

OVERALL

53

56

58

<30 years

73

75

65

31-34 years

67

60

65

35-39 years

48

55

61

40-45 years

31

43

41

Cumulative clinical pregnancy rate per OPU resulting in a frozen transfer

2016
2017
2018

OVERALL

56

69

71

<30 years

75

88

74

31-34 years

69

76

76

35-39 years

55

69

78

40-45 years

33

52

48

Live birth rate per OPU resulting in a frozen transfer

2016
2017
2018

OVERALL

47

57

54

<30 years

67

65

69

31-34 years

61

65

68

35-39 years

43

58

57

40-45 years

19

27

25