Success rate
Success rate of in vitro fertilization
We are committed to continuous improvement. Based on what international expert groups consider to be high quality, we have defined our quality goals and continuously compare our performance against them.
Our goal is to be at a high international level, and we do. We want to be transparent and share insight into our results, as has long been common in countries other than Norway.
There are many numbers that can be interesting and an important measurement parameter is the number of clinically pregnant women per embryo transfer. It is important to remember that if you are not successful on the first try, you can try several times.
Clinically pregnant – recent attempts (IVF/ICSI)
Positive pregnancy tests (hCG) – recent attempts (IVF/ICSI)
Clinically pregnant women – freezing trial (FER)
Positive pregnancy tests (hCG) – freezing attempt (FER)
Clinically pregnant – recent attempts (IVF/ICSI)
Positive pregnancy tests (hCG) – recent attempts (IVF/ICSI)
Clinically pregnant women – freezing trial (FER)
Positive pregnancy tests (hCG) – freezing attempt (FER)
Clinically pregnant – recent attempts (IVF/ICSI)
Positive pregnancy tests (hCG) – recent attempts (IVF/ICSI)
Clinically pregnant women – freezing trial (FER)
Positive pregnancy tests (hCG) – freezing attempt (FER)
Clinically pregnant – recent attempts (IVF/ICSI)
Positive pregnancy tests (hCG) – recent attempts (IVF/ICSI)
Clinically pregnant women – freezing trial (FER)
Positive pregnancy tests (hCG) – freezing attempt (FER)
Clinically pregnant – recent attempts (IVF/ICSI)
Positive pregnancy tests (hCG) – recent attempts (IVF/ICSI)
Clinically pregnant women – freezing trial (FER)
Positive pregnancy tests (hCG) – freezing attempt (FER)
Clinically pregnant – recent attempts (IVF/ICSI)
Positive pregnancy tests (hCG) – recent attempts (IVF/ICSI)
Clinically pregnant women – freezing trial (FER)
Positive pregnancy tests (hCG) – freezing attempt (FER)
Clinically pregnant – recent attempts (IVF/ICSI)
Positive pregnancy tests (hCG) – recent attempts (IVF/ICSI)
Clinically pregnant women – freezing trial (FER)
Positive pregnancy tests (hCG) – freezing attempt (FER)
Explanations
- A fresh attempt This means a completed test tube treatment such as IVF or ICSI.
- A freezing experiment This means that an embryo that was previously frozen is thawed and placed back into the uterus. This is often referred to as FER, which stands for "Frozen Embryo Replacement."
- Positive hCG means a positive pregnancy test, measured in a blood or urine sample.
- Clinical pregnancy means a live pregnancy that has been confirmed by ultrasound at approximately week 7.
Why list both positive pregnancy tests and clinical pregnancies?
It may be helpful for you to know what our pregnancy rate is, as there are still clinics that cite positive pregnancy tests as a measure of their quality. The most appropriate number to cite is registered clinical pregnancies. We provide you with both to make it easier to compare with other clinics.
What is the basis for the figures?
The figures for Medicus are from the period January 1, 2020 to July 2023. Unfortunately, there are no publicly available figures from Norwegian clinics to compare with.
If you are comparing results from different clinics, it is important to be aware of what you are comparing. Some report positive pregnancy tests, others clinical pregnancies (confirmed by ultrasound at week 6-7) or babies born. The different numbers have their advantages and disadvantages to work with, but the success rate decreases from positive pregnancy tests to babies born. Be careful to compare apples to apples and pears to pears.
An important factor to consider is how many embryos the clinic transfers. If they transfer more embryos, the likelihood of multiple pregnancies increases, which is something most countries in Europe try to avoid.
It can vary and significantly affect the results. At some public clinics, the average age of the woman may be as low as 30 years, while private clinics may have an average age of up to 40 years. This effect is partially corrected for when the numbers are broken down into age ranges.
Private clinics often have many couples who have tried many times at public clinics first without success, and thus may have more difficulty getting pregnant.
