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What is the probability of conception for couples entering an IVF program?
G T Kovacs1, V Maclachlan, S Brehny
1Monash IVF and Monash Medical School, Box Hill Hospital, Melbourne, Australia.
Summary
This study analyzed 8207 in vitro fertilization (IVF) cycles. Cumulative pregnancy rates reached over two-thirds within six cycles, offering valuable insights for prospective couples.
Area of Science:
- Reproductive Medicine
- Clinical Embryology
- Biostatistics
Background:
- In vitro fertilization (IVF) is a key treatment for infertility.
- Understanding cumulative pregnancy rates is crucial for patient counseling.
- Previous analyses may not fully capture long-term IVF success.
Purpose of the Study:
- To analyze the cumulative pregnancy outcomes of a large cohort undergoing IVF.
- To present IVF success probabilities using life table analysis.
- To provide realistic expectations for couples undergoing fertility treatments.
Main Methods:
- Life table analysis was used to evaluate outcomes from 8207 IVF cycles over six years.
- Data included 4225 couples undergoing treatment.
- Pregnancy was defined as a clinical pregnancy with an ultrasound-visible fetus per oocyte collection cycle.
Main Results:
- Only 1 in 200 patients proceeded beyond six IVF cycles.
- The cumulative pregnancy rate was 20.7% after the first cycle.
- Nearly 50% of patients achieved pregnancy within three cycles, and over 66% within six cycles.
Conclusions:
- Life table analysis provides a useful method for presenting IVF pregnancy chances.
- The majority of successful pregnancies occur within the first six IVF cycles.
- These findings can help manage expectations for couples pursuing fertility treatment.