Evidence map›Paper›PMID 25411176›Full record

ArticleJournal of clinical microbiology2015

Multicenter clinical evaluation of the Xpert GBS LB assay for detection of group B Streptococcus in prenatal screening specimens.

Blake W Buchan, Matthew L Faron, DeAnna Fuller, Thomas E Davis, Donna Mayne, Nathan A Ledeboer

Open access · bronzeAbstract readComparative StudyEvaluation StudyMulticenter Study
In one paragraph

Article in Journal of clinical microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Rapid tests for detecting group B streptococcus colonization in pregnant women: A systematic review and meta-analysis of diagnostic accuracy.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
    Pooled it
  2. Article
  3. PhenoMATRIX™ for the screening of Group B Streptococcus (GBS) carriage in pregnant women: ready to get rid of the LIM broth?European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Multicenter Evaluation of the Cepheid Xpert GBS LB XC Test.Journal of clinical microbiology · 2022
    Article
  8. Article
  9. Group B Streptococcal Neonatal Meningitis.Clinical microbiology reviews · 2022
    Review
  10. Article
  11. Article
  12. Diagnostic Performance of Various Methodologies for Group B SFrontiers in cellular and infection microbiology · 2021
    Article
  13. Article
  14. Article
  15. Journal of clinical microbiology · 2019
    Article
  16. Article
  17. Article
  18. Article
  19. Intrapartum group B Streptococcus screening in the labor ward by Xpert® GBS real-time PCR.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2018
    Article
  20. Review
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

6 authors at 4 institutions in 1 country.

Blake W BuchanMedical College of Wisconsin, Milwaukee, Wisconsin, USA Dynacare Laboratories, Milwaukee, Wisconsin, USA.
Matthew L FaronMedical College of Wisconsin, Milwaukee, Wisconsin, USA.
DeAnna FullerIndiana University School of Medicine, Indianapolis, Indiana, USA.
Thomas E DavisIndiana University School of Medicine, Indianapolis, Indiana, USA.
Donna MayneSacred Heart Hospital, Pensacola, Florida, USA.
Nathan A LedeboerMedical College of Wisconsin, Milwaukee, Wisconsin, USA Dynacare Laboratories, Milwaukee, Wisconsin, USA nledeboe@mcw.edu.
Medical College of Wisconsin · USIndiana University – Purdue University Indianapolis · USIndiana University School of MedicineSacred Heart Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neonatal infection with Streptococcus agalactiae (group B Streptococcus [GBS]) is a leading cause of sepsis and meningitis in newborns. Recent guidelines have recommended universal screening of all pregnant women to identify those colonized with GBS and administration of peripartum prophylaxis to those identified as carriers to reduce the risk of early-onset GBS disease in neonates. Enriched culture methods are the current standard for prenatal GBS screening; however, the implementation of more sensitive molecular diagnostic tests may be able to further reduce the risk of early-onset GBS infection. We report a clinical evaluation of the Xpert GBS LB assay, a molecular diagnostic test for the identification of GBS from broth-enriched vaginal/rectal specimens obtained during routine prenatal screening. A total of 826 specimens were collected from women undergoing prenatal screening (35 to 37 weeks' gestation) and tested at one of three clinical centers. Each swab specimen was tested directly prior to enrichment using the Xpert GBS assay. Following 18 to 24 h of broth enrichment, each specimen was tested using the Xpert GBS LB assay and the FDA-cleared Smart GBS assay as a molecular diagnostic comparator. Results obtained using all three molecular tests were compared to those for broth-enriched culture as the gold standard. The sensitivity and specificity of the Xpert GBS LB assay were 99.0% and 92.4%, respectively, compared to those for the gold standard culture. The Smart GBS molecular test demonstrated sensitivity and specificity of 96.8% and 95.5%, respectively. The sensitivities of the two broth-enriched molecular methods were superior to those for direct testing of specimens using the Xpert GBS assay, which demonstrated sensitivity and specificity of 85.7% and 96.2%, respectively.

Indexed as

Bacteriological TechniquesFemaleHumansInfant, NewbornMolecular Diagnostic TechniquesPregnancyPregnancy Complications, InfectiousPrenatal DiagnosisRectumSensitivity and SpecificityStreptococcal InfectionsStreptococcus agalactiaeVagina

Identifiers

PMID25411176
PMCPMC4298547
OpenAlexW1983463933

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.