IVF-ET Outcomes by Season from a 2019-2023 Cohort Study

A 5-year retrospective cohort study from 2019 to 2023 analyzed 1,413 infertile patients undergoing in vitro fertilization-embryo transfer. The dataset compares embryo quality and pregnancy outcomes across four seasonal groups. It was authored by Run Zhao based on data from a single hospital's Reproductive Medicine Center.

Use Cases

• Analyze the relationship between season and blastocyst_formation_rate using multivariate regression.
• Compare clinical_pregnancy_rate and HCG_positive_rate across spring, summer, autumn, and winter groups.
• Investigate year-season interaction effects on MII_oocyte_rate and available_embryo_rate.
• Model live_birth_rate and miscarriage_rate with season as a predictor while adjusting for confounding factors.
• Perform stratified analysis by year to identify temporal patterns in embryo_quality metrics.

Strengths

• 1,413 patient records providing a substantive clinical cohort.
• 5 years of data from 2019 to 2023 enabling longitudinal analysis.
• Includes multiple key IVF outcome metrics: blastocyst formation, clinical pregnancy, and live birth rates.

Limitations

• Data is from a single hospital center, limiting geographic and demographic generalizability.
• The 121.8 KB file size indicates a limited scope, likely containing aggregated summary statistics rather than raw patient-level data.
• Unknown row and column counts prevent assessment of feature dimensionality and sample granularity.

Provenance

Source

Reproductive Medicine Center of an unspecified hospital.

Collection Method

Retrospective analysis of patient records from an antagonist ovulation induction program.

Time Range

January 2019 to December 2023

Freshness

Data covers up to December 2023, with the dataset last updated in April 2026.

Geography

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