Clinical Outcomes of Day 4 Embryo Transfer Strategies, 2018-2024

889 fresh day 4 embryo transfer cycles from a retrospective cohort study conducted between October 2018 and December 2024. The data compares clinical and neonatal outcomes between single and double embryo transfer strategies using propensity score matching. Results indicate no significant differences in key pregnancy rates but a higher multiple pregnancy rate in the double transfer group.

Use Cases

• Compare clinical pregnancy rates between single and double embryo transfer strategies based on the study's primary outcome measures.
• Analyze the association between transfer type and multiple pregnancy or preterm delivery rates mentioned in the results.
• Investigate neonatal outcomes across different patient subgroups, such as those under 35 years old, as referenced in the description.

Strengths

• Dataset includes 889 fresh embryo transfer cycles from a defined study period.
• Analysis employed propensity score matching to control for potential confounders.
• Clinical outcomes are compared across specific embryo developmental stages (fully and partially compacted morula).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count for the underlying data is unknown, which may limit suitability assessment.
• Data may reflect temporal and institutional bias inherent to a single retrospective study.

Provenance

Source

figshare, authored by Lin-Lin Tao.

Collection Method

Retrospective cohort study.

Time Range

October 2018 to December 2024.

Freshness

Last updated 2026-06-01 04:18:35; freshness should be verified.