Evidence map›Paper›PMID 42165020›Full record

ArticleFrontiers in endocrinology2026

High serum FSH levels on day 7 of stimulation are negatively associated with oocyte retrieval in GnRH antagonist protocols: real-world evidence from 9,969 IVF cycles in China.

Xiu Luo, Hong Ye, Li Pei, Yao He, Fujie Li, Wei Han, Shun Xiong, Shubiao Han, Jingyu Li, Xiaodong Zhang and 1 more

Abstract read
In one paragraph

Article in Frontiers in endocrinology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

11 authors.

Xiu LuoWomen and Children's Hospital of Chongqing Medical University, Chongqing, China.
Hong YeWomen and Children's Hospital of Chongqing Medical University, Chongqing, China.
Li PeiWomen and Children's Hospital of Chongqing Medical University, Chongqing, China.
Yao HeChongqing Health Center for Women and Children, Chongqing, China.
Fujie LiChongqing Health Center for Women and Children, Chongqing, China.
Wei HanWomen and Children's Hospital of Chongqing Medical University, Chongqing, China.
Shun XiongWomen and Children's Hospital of Chongqing Medical University, Chongqing, China.
Shubiao HanWomen and Children's Hospital of Chongqing Medical University, Chongqing, China.
Jingyu LiKey Laboratory of Human Embryo Engineering, Chongqing Maternal and Child Health Care Hospital, Chongqing, China.
Xiaodong ZhangKey Laboratory of Human Embryo Engineering, Chongqing Maternal and Child Health Care Hospital, Chongqing, China.
Guoning HuangWomen and Children's Hospital of Chongqing Medical University, Chongqing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to investigate how levels of serum follicle-stimulating hormone (FSH) on Day 7 of ovarian stimulation are related to the number of oocytes retrieved, and identify any cutoff or threshold point in protocols using gonadotropin-releasing hormone (GnRH) antagonists. We examined data from January 2017 to June 2024, covering 9,969 cycles from 7,981 patients using GnRH antagonists as part of

Indexed as

Fertilization in VitroFollicle Stimulating HormoneGonadotropin-Releasing HormoneHormone AntagonistsOocyte RetrievalOvulation InductionAdultChinaFemaleHumansOocytesPregnancyPregnancy RateFollicle Stimulating HormoneGonadotropin-Releasing HormoneHormone AntagonistsGnRH antagonistin vitro fertilizationoocyte retrievalserum FSHthreshold

Identifiers

PMID42165020
PMCPMC13183537

What OpenQuestion holds

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Registered trials

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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.