Evidence map›Paper›PMID 24604900›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2014

NAP1 strain type predicts outcomes from Clostridium difficile infection.

Isaac See, Yi Mu, Jessica Cohen, Zintars G Beldavs, Lisa G Winston, Ghinwa Dumyati, Stacy Holzbauer, John Dunn, Monica M Farley, Carol Lyons and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 3 pooled it
14.4field-weighted citation impact, top 1% 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

81 citing papers in PubMed, 3 syntheses or guidelines pooled it, 170 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Pooled it
  4. Extended-pulsed fidaxomicin versus vancomycin for Clostridium difficile infection: EXTEND study subgroup analyses.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019
    Trial
  5. Bezlotoxumab for Prevention of Recurrent Clostridium difficile Infection in Patients at Increased Risk for Recurrence.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018
    Trial
  6. Thirty-Day Readmissions in Hospitalized Patients Who Received Bezlotoxumab With Antibacterial Drug Treatment for Clostridium difficile Infection.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2017
    Trial
  7. Article
  8. Burden and Mortality Outcomes ofJournal of clinical medicine · 2026
    Article
  9. Global Practice Variation in the Management ofOpen forum infectious diseases · 2025
    Article
  10. Article
  11. Pathogens (Basel, Switzerland) · 2024
    Review
  12. Observational
  13. "Antibiotics (Basel, Switzerland) · 2024
    Article
  14. Article
  15. Article
  16. Insights into the Evolving Epidemiology ofAntibiotics (Basel, Switzerland) · 2023
    Review
  17. Article
  18. Article
  19. Article
  20. Treatment and Outcomes ofJournal of clinical medicine · 2022
    Article

21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 12 institutions in 1 country.

Isaac SeeDivision of Healthcare Quality Promotion.
Yi Mu
Jessica Cohen
Zintars G Beldavs
Lisa G Winston
Ghinwa Dumyati
Stacy Holzbauer
John Dunn
Monica M Farley
Carol Lyons
Helen Johnston
Erin Phipps
Rebecca Perlmutter
Lydia Anderson
Dale N Gerding
Fernanda C Lessa
Atlanta Research and Education Foundation · USCenters for Disease Control and Prevention · USColorado Department of Public Health and Environment · USEmory University · USEpidemic Intelligence Service · USLoyola University Chicago · USMaryland Department of Health · USOregon Health Authority · USTennessee Department of Health · USUniversity of California, San Francisco · USUniversity of New Mexico · USUniversity of Rochester · US

Funding

Intramural CDC HHS CC999999NCEZID CDC HHS U50CK000194NCEZID CDC HHS U50CK000195NCEZID CDC HHS U50CK000196NCEZID CDC HHS U50CK000197NCEZID CDC HHS U50CK000198NCEZID CDC HHS U50CK000199NCEZID CDC HHS U50CK000201NCEZID CDC HHS U50CK000203NCEZID CDC HHS U50CK000204NCEZID CDC HHS U50CK000205
6 · The paper itself

Abstract

backgroundStudies are conflicting regarding the importance of the fluoroquinolone-resistant North American pulsed-field gel electrophoresis type 1 (NAP1) strain in Clostridium difficile infection (CDI) outcome. We describe strain types causing CDI and evaluate their association with patient outcomes.

methodsCDI cases were identified from population-based surveillance. Multivariate regression models were used to evaluate the associations of strain type with severe disease (ileus, toxic megacolon, or pseudomembranous colitis within 5 days; or white blood cell count ≥15 000 cells/µL within 1 day of positive test), severe outcome (intensive care unit admission after positive test, colectomy for C. difficile infection, or death within 30 days of positive test), and death within 14 days of positive test.

resultsStrain typing results were available for 2057 cases. Severe disease occurred in 363 (17.7%) cases, severe outcome in 100 (4.9%), and death within 14 days in 56 (2.7%). The most common strain types were NAP1 (28.4%), NAP4 (10.2%), and NAP11 (9.1%). In unadjusted analysis, NAP1 was associated with greater odds of severe disease than other strains. After controlling for patient risk factors, healthcare exposure, and antibiotic use, NAP1 was associated with severe disease (adjusted odds ratio [AOR], 1.74; 95% confidence interval [CI], 1.36-2.22), severe outcome (AOR, 1.66; 95% CI, 1.09-2.54), and death within 14 days (AOR, 2.12; 95% CI, 1.22-3.68).

conclusionsNAP1 was the most prevalent strain and a predictor of severe disease, severe outcome, and death. Strategies to reduce NAP1 prevalence, such as antibiotic stewardship to reduce fluoroquinolone use, might reduce CDI morbidity.

Indexed as

AgedAnti-Bacterial AgentsBacterial Typing TechniquesClostridioides difficileClostridium InfectionsDrug Resistance, BacterialElectrophoresis, Gel, Pulsed-FieldEnterocolitis, PseudomembranousFemaleFluoroquinolonesHospitalizationHumansMegacolon, ToxicMiddle AgedPopulation SurveillancePrevalenceAnti-Bacterial AgentsFluoroquinolonesclinical outcomesClostridium difficileepidemiologystrain typing

Identifiers

PMID24604900
PMCPMC4697926
OpenAlexW2132075236

What OpenQuestion holds

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Registered trials

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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.