Evidence map›Paper›PMID 32103397›Full record

ArticleJournal of assisted reproduction and genetics2020

Comprehensive analysis of the associations between previous pregnancy failures and blastocyst aneuploidy as well as pregnancy outcomes after PGT-A.

Tianxiang Ni, Qianqian Wu, Yueting Zhu, Wenjie Jiang, Qian Zhang, Yan Li, Junhao Yan, Zi-Jiang Chen

Abstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–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

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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

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Tianxiang NiCenter for Reproductive Medicine, Shandong University, 157 Jingliu Road, Jinan, 250001, China.
Qianqian WuCenter for Reproductive Medicine, Shandong University, 157 Jingliu Road, Jinan, 250001, China.
Yueting ZhuCenter for Reproductive Medicine, Shandong University, 157 Jingliu Road, Jinan, 250001, China.
Wenjie JiangCenter for Reproductive Medicine, Shandong University, 157 Jingliu Road, Jinan, 250001, China.
Qian ZhangCenter for Reproductive Medicine, Shandong University, 157 Jingliu Road, Jinan, 250001, China.
Yan LiCenter for Reproductive Medicine, Shandong University, 157 Jingliu Road, Jinan, 250001, China.
Junhao YanCenter for Reproductive Medicine, Shandong University, 157 Jingliu Road, Jinan, 250001, China. yyy306@126.com.ORCID http://orcid.org/0000-0002-7110-8698
Zi-Jiang ChenCenter for Reproductive Medicine, Shandong University, 157 Jingliu Road, Jinan, 250001, China.

Funding

National Key Research and Development Program of China 2016YFC1000202National Key Research and Development Program of China 2018YFC1002804National Natural Science Foundation of China 81671522
6 · The paper itself

Abstract

purposeTo investigate the associations of previous pregnancy failures, including implantation failures (IFs), biochemical pregnancy losses (BPLs), and early (EMs) and late miscarriages (LMs), with blastocyst aneuploidy and pregnancy outcomes after PGT-A.

methodsThis study included 792 couples who underwent PGT-A after multiple pregnancy failures. Subgroup analyses were used to compare the blastocyst aneuploidy rate (BAR), implantation rate (IR), early miscarriage rate (EMR), and live birth rate (LBR). Multiple linear and logistic regression models were used to evaluate the associations. The control group comprised couples with ≤ 2 IFs, ≤ 1 BPL, ≤ 1 EM, and no LM.

resultsNotably, a history of ≥ 4 IFs was significantly associated with an increase in aneuploid blastocysts (42.86% vs. 33.05%, P = 0.044, B = 10.23 for 4 IFs; 48.80% vs. 33.05%, P = 0.002, B = 14.43 for ≥ 5 IFs). Women with ≥ 4 prior EMs also harbored more aneuploid blastocysts (41.00% vs. 33.05%, P = 0.048; B = 9.23). Compared with the control group, women with ≥ 4 prior EMs had a significantly higher EMR (6.58% vs. 31.11%, P < 0.001, OR = 6.49) and a lower LBR (53.49% vs. 34.18%, P = 0.007, OR = 0.56) after euploid transfer. Moreover, a history of LM(s) was associated with adverse pregnancy outcomes after PGT-A (OR for EM = 3.16; OR for live birth = 0.48). However, previous BPLs and 2 EMs were not associated significantly with blastocyst aneuploidy and pregnancy outcomes after PGT-A.

conclusionA history of high-order IFs or EMs and existence of LM(s) were significantly associated with blastocyst aneuploidy and adverse pregnancy outcomes after PGT-A, whereas no such associations were observed with BPLs or 2 EMs.

Indexed as

Genetic TestingPreimplantation DiagnosisAbortion, SpontaneousAdultAneuploidyBirth RateBlastocystEmbryo Culture TechniquesEmbryo ImplantationEmbryo TransferFemaleFertilization in VitroHumansPregnancyPregnancy OutcomePregnancy RateEmbryonic aneuploidyImplantation failureLive birthMiscarriagePreimplantation genetic testing

Identifiers

PMID32103397
PMCPMC7125264

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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.