Evidence map›Paper›PMID 28600366›Full record

ArticleBMJ open2017

Optimal timing for elective caesarean delivery in a Chinese population: a large hospital-based retrospective cohort study in Shanghai.

Yong Hu, Hong Shen, Mark B Landon, Weiwei Cheng, Xiaohua Liu

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 40% of its field
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

3 citing papers in PubMed, 9 citations in OpenAlex.

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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

5 authors at 3 institutions in 2 countries.

Yong HuDepartment of Neonatology, Shanghai Children's hospital, Shanghai Jiaotong University, Shanghai, China.
Hong ShenObstetrics Department, International Peace Maternity & Child Health Hospital, Shanghai Jiaotong University, Shanghai, China.
Mark B LandonDivision of Maternal Fetal Medicine, Department of Obstetrics & Gynecology, The Ohio State University College of Medicine, Columbus, Ohio, USA.
Weiwei ChengObstetrics Department, International Peace Maternity & Child Health Hospital, Shanghai Jiaotong University, Shanghai, China.
Xiaohua LiuObstetrics Department, International Peace Maternity & Child Health Hospital, Shanghai Jiaotong University, Shanghai, China.
International Peace Maternity & Child Health Hospital · CNShanghai Children's Hospital · CNThe Ohio State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo assess the relationship between the timing of antepartum elective caesarean delivery (CD) at term and perinatal outcomes in a Chinese population.

methodsWe conducted a retrospective cohort study of mode of delivery at a large obstetric centre in Shanghai, China between 2007 and 2014. Eligibility criteria included: term nulliparous women with a singleton gestation undergoing antepartum elective CD.

resultsThere were 19 939 women delivered by antepartum CD without indications, with 5.9% performed at 37-37 6/7 weeks, 36.2% at 38-38 6/7 weeks, 38.4% at 39-39 6/7 weeks, 15.4% at 40-40 6/7 weeks, 4.0% at ≥41 weeks. As compared with births at 39-39 6/7 weeks, births at 37 weeks were associated with an increased odds of neonatal respiratory disease (adjusted odds ratian(aOR): 4.82; 95% CI 3.35 to 6.94), neonatal infection (aOR: 3.68; 95% CI 1.80 to 7.52), hypoglycaemia (aOR: 3.85; 95%CI 2.29 to 6.48), hyperbilirubinaemia (aOR: 3.50; 95%CI 2.12 to 5.68), neonatal intensive care admission (aOR: 3.73; 95% CI 2.84 to 4.89) and prolonged hospitalisation (aOR: 7.51; 95% CI 5.10 to 11.07). Births at 38 weeks, 40 weeks or ≥41 weeks were also associated with an increased odds of neonatal respiratory disease with corresponding aORs (95% CI) of 2.26 (1.71 to 3.00), 1.97 (1.33 to 2.94) and 2.91 (1.80 to 4.70), respectively.

conclusionFor women undergoing elective CD, neonatal outcome data suggest that delivery at 39-39 6/7 complete weeks is optimal timing in a Chinese population.

Indexed as

Gestational AgePregnancy OutcomeAdultCesarean SectionChinaElective Surgical ProceduresFemaleHumansInfant, NewbornInfant, Newborn, DiseasesPregnancyRetrospective StudiesYoung Adultantepartum non-indicated cesarean deliveryHyperbilirubinemiaHypoglycemiaNeonatal respiratory disease

Identifiers

PMID28600366
PMCPMC5623362
OpenAlexW2621852271

What OpenQuestion holds

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LicenceCC BY-NC
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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.