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A systematic review and meta‐analysis of velamentous cord insertion among singleton pregnancies and the risk of preterm delivery

Overview of attention for article published in International Journal of Gynecology & Obstetrics, April 2018
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Title
A systematic review and meta‐analysis of velamentous cord insertion among singleton pregnancies and the risk of preterm delivery
Published in
International Journal of Gynecology & Obstetrics, April 2018
DOI 10.1002/ijgo.12489
Pubmed ID
Authors

Samantha de los Reyes, Janice Henderson, Ahizechukwu C. Eke

Abstract

Observational studies have reported varying results about the association of velamentous cord insertion (VCI) with adverse pregnancy outcomes. To evaluate the risk of preterm delivery among singleton pregnancies complicated by VCI. Various databases were searched for English-language articles published up to February, 28, 2017, using keywords including VCI; abnormal placentation; abnormal cord insertions; adverse perinatal outcomes; and preterm birth. Outcome measures included preterm delivery; pre-eclampsia; cesarean delivery; fetal demise in utero (FDIU); and small for gestational age (SGA). Only studies involving VCI were included in the meta-analysis. Analyses were performed using RevMan version 5.3.5 (The Nordic Cochrane Centre, Copenhagen, Denmark). There were six studies included in the analysis. The VCI and control groups comprised 16 295 and 1 366 485 women, respectively. An increased incidence of preterm delivery was found for the VCI group compared with the control group (11.8% vs 7.0%; adjusted odds ratio [aOR] 1.95, 95% confidence interval [CI] 1.85-2.04). A diagnosis of VCI was also associated with cesarean delivery (aOR 1.17, 95% CI 1.12-1.23), SGA (aOR 1.93, 95% CI 1.83-2.04), and FDIU (aOR 3.96, 95% CI 3.21-4.89). The presence of VCI was associated with adverse pregnancy outcomes.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 51 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 51 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 9 18%
Student > Master 7 14%
Researcher 7 14%
Student > Ph. D. Student 4 8%
Student > Postgraduate 4 8%
Other 4 8%
Unknown 16 31%
Readers by discipline Count As %
Medicine and Dentistry 20 39%
Nursing and Health Professions 4 8%
Immunology and Microbiology 1 2%
Business, Management and Accounting 1 2%
Neuroscience 1 2%
Other 1 2%
Unknown 23 45%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 March 2018.
All research outputs
#16,633,961
of 24,471,305 outputs
Outputs from International Journal of Gynecology & Obstetrics
#3,148
of 4,074 outputs
Outputs of similar age
#214,582
of 333,616 outputs
Outputs of similar age from International Journal of Gynecology & Obstetrics
#33
of 39 outputs
Altmetric has tracked 24,471,305 research outputs across all sources so far. This one is in the 21st percentile – i.e., 21% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,074 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 7.8. This one is in the 14th percentile – i.e., 14% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 333,616 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 26th percentile – i.e., 26% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 39 others from the same source and published within six weeks on either side of this one. This one is in the 10th percentile – i.e., 10% of its contemporaries scored the same or lower than it.