Q-IVF, & National Quality Registry for Assisted Reproduction (2025). Q-IVF Annual Report 2025: Fertility Treatments in Sweden (Treatment Year 2023). Q-IVF.
Q-IVF, National Quality Registry for Assisted Reproduction. Q-IVF Annual Report 2025: Fertility Treatments in Sweden (Treatment Year 2023). Q-IVF; 2025.
Q-IVF, and National Quality Registry for Assisted Reproduction. Q-IVF Annual Report 2025: Fertility Treatments in Sweden (Treatment Year 2023). Q-IVF, 2025.
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RRM Academy Synopsis
Sweden's IVF Registry Tracks Birth Rates and Twin Risk
This report comes from Sweden's national quality registry, tracking the clinics that report to it for people who began treatment in 2023. About 27 out of 100 fresh embryo transfers led to a birth. A woman's age changed those odds a great deal. Twin pregnancies kept getting rarer as clinics moved almost entirely to placing one embryo at a time.
Key Findings
A woman under 30 had about a 4 in 10 chance of a birth per fresh embryo transfer (38.4%), versus under 1 in 10 at age 42 or older (7.7%).
For frozen-embryo transfers the same age gap held: 44.5% for women under 30, down to 17.6% at age 42 or older.
Overall in 2023, close to 3 in 10 fresh transfers with a woman's own eggs ended in a birth (27% of 6,118 transfers), while frozen-embryo transfers reached nearly 4 in 10 (36.9%).
Hospital-level ovarian hyperstimulation touched about 4 in 1,000 women, and infection after egg collection touched about 2 in 1,000.
Twin and triplet deliveries dropped sharply as single-embryo transfer became routine: multiple births fell from 5.2% of all deliveries in 2007 to 1.7% in 2023.
Interpretation
This is Sweden's yearly observational registry report. The report did not run as a controlled trial. The registry adds up results from every clinic that reports to Q-IVF in one treatment year. The numbers describe the clinics that report to the registry. They do not predict any one couple's odds. The report links rising frozen-embryo success to newer freezing and lab methods, but no trial proved that link caused the improvement. In 2023, 100 treatments with a positive pregnancy test had no recorded outcome, listed as 'lost to follow-up.' The registry shows trends across the country back to 2007. The data cannot explain why one woman's result differs from the national average.
RRM Context
The report's own background section says fertility problems affect 10-15% of heterosexual couples. About a third trace to the male partner, a third to the female partner, and a third to both. RRM evaluates both partners together as a couple and looks for why conception is not happening. IVF bypasses the reproductive system. This registry shows that IVF birth rates still track a woman's age closely, even after decades of new freezing and lab methods.
Our editorial summary of this paper, not the article's abstract.
Key figures
Treatment volume, 2023
Measure
Value
Source
Children conceived through IVF with own or donated gametes in Sweden, 2023
5,508
How we collect data section
Children conceived through donor insemination in Sweden, 2023
296
How we collect data section
Fresh IVF embryo transfers performed with own gametes, 2023
6,118
Figure 10
IVF outcomes, 2023
Measure
Value
Source
Delivery rate per fresh IVF embryo transfer with own gametes, 2023
27%
Figure 10
Embryo transfer practice, 2023
Measure
Value
Source
Share of fresh IVF cycles reaching oocyte retrieval that proceeded to a fresh embryo transfer, 2023
about 64%
Figure 10
IVF with donated gametes, 2023
Measure
Value
Source
Delivery rate per fresh embryo transfer using own oocytes with donated sperm, 2023
28%
IVF with donated gametes section
Delivery rate per frozen embryo transfer using own oocytes with donated sperm, 2023
36.5%
IVF with donated gametes section
Delivery rate per frozen embryo transfer (FET) using donated oocytes, 2023
27%
IVF with donated oocytes section
Delivery rate per frozen embryo transfer (FET) using donated oocytes (2022, for comparison)
33%
IVF with donated oocytes section
Overall delivery rate per embryo transfer, fresh and frozen combined, donated oocytes, 2023
about 31%
IVF with donated oocytes section
Complications, 2023
Measure
Value
Source
Share of women undergoing IVF with moderate or severe OHSS requiring hospitalization, 2023
0.4%
Complications section
Risk of ovarian or abdominal infection after oocyte retrieval, 2023
about 0.2%
Complications section
Hospitalized OHSS cases among fresh IVF treatments started, 2023
40
Complications section
Bleeding cases among fresh IVF treatments started, 2023
5
Complications section
Infection cases among fresh IVF treatments started, 2023
19
Complications section
Ovarian torsion cases among fresh IVF treatments started, 2023
5
Complications section
Multiple births
Measure
Value
Source
IVF multiple birth rate in several other countries (context, not Sweden's own figure)
20-25%
Multiple-births section
Multiple birth rate for spontaneous conception (context, not Sweden's own figure)
about 1%
Multiple-births section
Share of multiple deliveries from assisted reproduction in Sweden, trend over the report period
5.2% to 1.7%
Table 7
PGT and fertility preservation
Measure
Value
Source
Children born in Sweden from a process involving PGT, cumulative through end of 2023
more than 1,000
PGT section
Oocyte freezing treatments performed for oncological indication, 2023
186
Oocyte-freezing section
Oocyte freezing treatments performed for non-medical reasons, 2023
865
Oocyte-freezing section
Our summary of the report's published figures, each citing its table, figure or section. The full report is at the publisher's link.
