Evidence map›Paper›PMID 35974356›Full record

Observational studyReproductive biology and endocrinology : RB&E2022

Usage and cost-effectiveness of elective oocyte freezing: a retrospective observational study.

Ih-Jane Yang, Ming-Yih Wu, Kuang-Han Chao, Shin-Yi Wei, Yi-Yi Tsai, Ting-Chi Huang, Mei-Jou Chen, Shee-Uan Chen

Abstract readObservational Study
In one paragraph

Observational study in Reproductive biology and endocrinology : RB&E, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Observational
  2. Review
  3. Review
  4. Observational
  5. Nesting the Eggs on Another Day: Social Egg Freezing.Journal of obstetrics and gynaecology of India · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Ih-Jane YangDepartment of Obstetrics and Gynecology, National Taiwan University Hospital, Number 8, Chung Shan South Road, Taipei City, 100, Taiwan.
Ming-Yih WuDepartment of Obstetrics and Gynecology, National Taiwan University Hospital, Number 8, Chung Shan South Road, Taipei City, 100, Taiwan.
Kuang-Han ChaoDepartment of Obstetrics and Gynecology, National Taiwan University Hospital, Number 8, Chung Shan South Road, Taipei City, 100, Taiwan.
Shin-Yi WeiDepartment of Obstetrics and Gynecology, National Taiwan University Hospital, Number 8, Chung Shan South Road, Taipei City, 100, Taiwan.
Yi-Yi TsaiDepartment of Obstetrics and Gynecology, National Taiwan University Hospital, Number 8, Chung Shan South Road, Taipei City, 100, Taiwan.
Ting-Chi HuangDepartment of Obstetrics and Gynecology, National Taiwan University Hospital, Number 8, Chung Shan South Road, Taipei City, 100, Taiwan.
Mei-Jou ChenDepartment of Obstetrics and Gynecology, National Taiwan University Hospital, Number 8, Chung Shan South Road, Taipei City, 100, Taiwan.
Shee-Uan ChenDepartment of Obstetrics and Gynecology, National Taiwan University Hospital, Number 8, Chung Shan South Road, Taipei City, 100, Taiwan. sheeuan@ntu.edu.tw.

Funding

Ministry of Science and Technology, Taiwan 108-2926-I-002-002-MY4
6 · The paper itself

Abstract

backgroundThe previous model-based cost-effectiveness analyses regarding elective oocyte cryopreservation remained debatable, while the usage rate may influence the cost per live birth. The aim of this study is to disclose the usage and cost-effectiveness of the planned cryopreserved oocytes after oocyte thawing in real-world situations.

methodsThis was a retrospective single-center observational study. Women who electively cryopreserved oocytes and returned to thaw the oocytes were categorized as thawed group. The oocytes were fertilized at our center and the sperm samples for each individual was retrieved from their respective husbands. Clinical outcomes were traced and the cumulative live birth rate per thawed case was calculated. The costs from oocyte freezing cycles to oocyte thawing, and embryo transfer cycles were accordingly estimated. The cumulative cost per live birth was defined by the cumulative cost divided by the live births per thawed case.

resultsWe recruited 645 women with 840 oocyte retrieval cycles for elective oocyte freezing from November 2002 to December 2020. The overall usage rate was 8.4% (54/645). After the storage duration exceeded ten years, the probabilities of thawing oocytes were 10.6%, 26.6%, and 12.7% from women who cryopreserved their oocytes at the age ≤ 35 years, 36-39 years, and ≥ 40 years, respectively (P = 0.304). Among women who thawed their oocytes, 31.5% (17/54) of women achieved at least one live birth. For the age groups of ≤ 35 years, 36-39 years, and ≥ 40 years, the cumulative live birth rates per thawed case were 63.6%, 42.3%, and 17.6%, respectively (P = 0.045), and the cumulative costs for one live birth were $11,704, $17,189, and $35,642, respectively (P < 0.001).

conclusionsThe overall usage rate was 8.4% in our cohort. The cumulative live birth rate was greatest in the youngest group and the cumulative cost per live birth was highest in the oldest group, which was threefold greater than that in the group aged ≤ 35 years. The findings added to the limited evidence of the usage rate in real-world situations, which could hopefully aid future analysis and decision-making in public health policy and for women willing to preserve fertility.

trial registrationNone.

Indexed as

Oocyte RetrievalSemenCost-Benefit AnalysisCryopreservationFemaleFertilization in VitroFreezingHumansLive BirthMaleOocytesPregnancyPregnancy RateRetrospective StudiesCost-effectiveness analysisElective oocyte cryopreservationFertility preservationSocial oocyte freezingUsage rate

Identifiers

PMID35974356
PMCPMC9380307

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.