Selection bias in in vitro fertilization programs.
basic_science · Level V
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- Record sourced from PubMed, PMID 1733175.
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Abstract
Pregnancy rates per cycle reported from different in vitro fertilization-embryo transfer programs vary widely. While several programs have reported constant pregnancy rates per cycle, others report declining pregnancy rates. Selection biases at the point of entry and between cycles are discussed as possible explanations of these discrepancies.
Medical subject headings
- Bias
- Fertilization in Vitro