
Clinics often quote a single success figure, but the number depends on what is being measured.
Per cycle versus per transfer
A rate per embryo transfer is usually higher than a rate per started cycle. Ask which one is being quoted.
Age matters
Success rates fall with maternal age, so compare figures for your own age group rather than the clinic average.
Live birth, not just pregnancy
The most meaningful figure is live births, not positive pregnancy tests.
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