Evidence map›Paper›PMID 27760522›Full record

ArticleBMC pregnancy and childbirth2016

Amniotic fluid embolism as a cause of maternal mortality in China between 1996 and 2013: a population-based retrospective study.

Yi Mu, Nolan McDonnell, Zhuoyang Li, Juan Liang, Yanping Wang, Jun Zhu, Elizabeth Sullivan

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC pregnancy and childbirth, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.3field-weighted citation impact, top 12% 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

2 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. 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

7 authors at 3 institutions in 2 countries.

Yi MuNational Office for Maternal and Child Health Surveillance of China, Department of Obstetrics, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China.
Nolan McDonnellSchool of Women's and Infants' Health and School of Medicine and Pharmacology, University of Western Australia, Perth, Australia.
Zhuoyang LiFaculty of Health, University of Technology Sydney, 235 Jones St, Ultimo, Sydney, NSW, 2007, Australia.
Juan LiangNational Office for Maternal and Child Health Surveillance of China, Department of Obstetrics, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China.
Yanping WangNational Office for Maternal and Child Health Surveillance of China, Department of Obstetrics, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China.
Jun ZhuNational Office for Maternal and Child Health Surveillance of China, Department of Obstetrics, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Ren Min South Road Section 3 No.17, Chengdu, Sichuan, China. zhujun028@163.com.
Elizabeth SullivanFaculty of Health, University of Technology Sydney, 235 Jones St, Ultimo, Sydney, NSW, 2007, Australia. elizabeth.sullivan@uts.edu.au.
Sichuan University · CNUniversity of Technology Sydney · AUUniversity of Western Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo analyse the maternal mortality ratio, demographic and pregnancy related details in women who suffered a fatal amniotic fluid embolism (AFE) in China.

methodsA retrospective population based study using data collected as part of the National Maternal Mortality Surveillance System between 1996 and 2013. Data were collected onto a standardised form from women whose cause of death was listed as being secondary to AFE.

resultsRecords were available for 640 deaths. Over the 17 year period the maternal mortality ratio for AFE decreased from 4.4 per 100,000 births (95 % confidence interval (CI):2.72-6.12) to 1.9 per 100,000 births (95 % CI:1.35-2.54). Over the same period the proportion of maternal deaths secondary to AFE increased from 6.8 to 12.5 %. The mean age of women who died was 30.1 years and the onset of the AFE occurred prior to delivery in 39 %. The most prominent presenting features included premonitory symptoms (29 %), acute fetal compromise (28 %), maternal haemorrhage (16 %) and shortness of breath (15 %).

conclusionsMaternal mortality secondary to AFE has decreased in China, however at a slower rate than mortality secondary to other conditions. Active surveillance is recommended to assess case fatality rates, risk factors and other lessons specific to this population.

Indexed as

Maternal MortalityAdultChinaEmbolism, Amniotic FluidFemaleHumansPregnancyRetrospective StudiesYoung AdultAmniotic fluid embolismChinaMaternal deathMaternal mortalityMaternal mortality ratioPregnancy

Identifiers

PMID27760522
PMCPMC5069862
OpenAlexW2537766849

What OpenQuestion holds

Textmetadata
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.