Evidence map›Paper›PMID 21720307›Full record

ArticleJournal of perinatology : official journal of the California Perinatal Association2012

Racial and ethnic differences in the prevalence of placenta previa.

L H Kim, A B Caughey, J C Laguardia, G J Escobar

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of perinatology : official journal of the California Perinatal Association, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

10 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Risk Factors for Shoulder Dystocia: the Impact of Mother's Race and Ethnicity.Journal of racial and ethnic health disparities · 2018
    Observational
  8. Article
  9. Racial disparity in placental pathology in the collaborative perinatal project.International journal of clinical and experimental pathology · 2015
    Article
  10. 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

4 authors at 3 institutions in 1 country.

L H KimDepartment of Obstetrics, Gynecology & Reproductive, Sciences, University of California, San Francisco, CA, USA. kimlh@obgyn.ucsf.edu
A B Caughey
J C Laguardia
G J Escobar
Kaiser Permanente · USOregon Health & Science University · USUniversity of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe objective of this study is to determine the prevalence of placenta previa among different racial and ethnic groups. STUDY

designWe conducted a retrospective cohort study to examine the prevalence of placenta previa among five major racial and ethnic groups: African American, Asian, Caucasian, Hispanic and Native American. We included all deliveries ≥ 20 weeks gestation from a large northern Californian Health Maintenance Organization from 1995-2006. A multivariable logistic regression model was used to control for potential confounders.

resultOf the 394 083 deliveries in our cohort, 1580 (0.40%) were complicated by placenta previa. The prevalence of placenta previa was: Asian 0.64%, Native American 0.60%, African American 0.44%, Caucasian 0.36%, Hispanic 0.34% and unknown 0.31% (P<0.001). In our multivariable logistic regression model, only Asians (odds ratio (OR) 1.73, 95% confidence intervals (CI) 1.53-1.95) and African Americans (OR 1.43, 95% CI 1.19-1.72) were at increased risk for having placenta previa, compared with Caucasians.

conclusionAsian women have the highest prevalence of placenta previa.

Indexed as

CaliforniaCohort StudiesCross-Cultural ComparisonCross-Sectional StudiesEthnicityFemaleHealth SurveysHumansInfant, NewbornPlacenta PreviaPregnancyRetrospective StudiesRisk

Identifiers

PMID21720307
OpenAlexW2014278650

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.