Evidence map›Paper›PMID 22011388›Full record

ArticleBMC infectious diseases2011

Comparative effectiveness of nafcillin or cefazolin versus vancomycin in methicillin-susceptible Staphylococcus aureus bacteremia.

Marin L Schweizer, Jon P Furuno, Anthony D Harris, J Kristie Johnson, Michelle D Shardell, Jessina C McGregor, Kerri A Thom, Sara E Cosgrove, George Sakoulas, Eli N Perencevich

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC infectious diseases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 4 pooled it
7.1field-weighted citation impact, top 2% 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

117 citing papers in PubMed, 4 syntheses or guidelines pooled it, 249 citations in OpenAlex.

  1. β-lactam antibiotics vs vancomycin in treating methicillin-sensitive staphylococcus aureus bloodstream infections: a meta-analysis of clinical outcomes.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
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  16. Evolution under vancomycin selection drives divergent collateral sensitivity patterns inProceedings of the National Academy of Sciences of the United States of America · 2025
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  19. Association Between the Sequence of β-Lactam and Vancomycin Administration and Mortality in Patients With Suspected Sepsis.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025
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  20. Review

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

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

10 authors at 5 institutions in 1 country.

Marin L SchweizerDepartment of Epidemiology and Preventive Medicine, University of Maryland School of Medicine, Baltimore, MD, USA. marin-schweizer@uiowa.edu
Jon P Furuno
Anthony D Harris
J Kristie Johnson
Michelle D Shardell
Jessina C McGregor
Kerri A Thom
Sara E Cosgrove
George Sakoulas
Eli N Perencevich
University of Maryland, Baltimore · USIowa City VA Health Care System · USJohns Hopkins University · USOregon Health & Science University · USUniversity of California, San Diego · US

Funding

Maryland's Organized Research Effort in Women's Health (MORE-WH)K12HD043489 · NICHD · UNIVERSITY OF MARYLAND BALTIMORE · PI TRACY, J. KATHLEEN · 2002 to 2016
$7.0M
Oregon Clinical and Translational Science InstituteKL2RR024141 · NCRR · OREGON HEALTH & SCIENCE UNIVERSITY · PI ORWOLL, ERIC S. · 2006 to 2011
$3.6M
K24 Clinical Research in Antimicrobial Resistance and Hospital EpidemiologyK24AI079040 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI HARRIS, ANTHONY D · 2009 to 2018
$1.8M
Epidemiology of resistant bacteria in acute-care and long-term care facilitiesK01AI071015 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI FURUNO, JON P · 2008 to 2012
$757k
Epidemiology of Acinetobacter baumannii: An Emerging Nosocomial PathogenK23AI082450 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI THOM, KERRI · 2010 to 2014
$674k
REQUEST FOR A SHARED ELECTRON MICROSCOPES10RR002350 · NCRR · FRED HUTCHINSON CANCER RESEARCH CENTER · PI REEDER, RONALD H · 1985 to 1985
–
NCRR NIH HHS 1K12RR02350-04NCRR NIH HHS KL2RR024141NIAID NIH HHS 1K01AI071015-03NIAID NIH HHS 1K24AI079040 - 01A1NIAID NIH HHS K01 AI071015NIAID NIH HHS K23 AI082450NICHD NIH HHS K12HD043489PHS HHS 1R01A160859-01A1
6 · The paper itself

Abstract

backgroundThe high prevalence of methicillin-resistant S. aureus (MRSA) has led clinicians to select antibiotics that have coverage against MRSA, usually vancomycin, for empiric therapy for suspected staphylococcal infections. Clinicians often continue vancomycin started empirically even when methicillin-susceptible S. aureus (MSSA) strains are identified by culture. However, vancomycin has been associated with poor outcomes such as nephrotoxicity, persistent bacteremia and treatment failure. The objective of this study was to compare the effectiveness of vancomycin versus the beta-lactam antibiotics nafcillin and cefazolin among patients with MSSA bacteremia. The outcome of interest for this study was 30-day in-hospital mortality.

methodsThis retrospective cohort study included all adult in-patients admitted to a tertiary-care facility between January 1, 2003 and June 30, 2007 who had a positive blood culture for MSSA and received nafcillin, cefazolin or vancomycin. Cox proportional hazard models were used to assess independent mortality hazards comparing nafcillin or cefazolin versus vancomycin. Similar methods were used to estimate the survival benefits of switching from vancomycin to nafcillin or cefazolin versus leaving patients on vancomycin. Each model included statistical adjustment using propensity scores which contained variables associated with an increased propensity to receive vancomycin.

results267 patients were included; 14% (38/267) received nafcillin or cefazolin, 51% (135/267) received both vancomycin and either nafcillin or cefazolin, and 35% (94/267) received vancomycin. Thirty (11%) died within 30 days. Those receiving nafcillin or cefazolin had 79% lower mortality hazards compared with those who received vancomycin alone (adjusted hazard ratio (HR): 0.21; 95% confidence interval (CI): 0.09, 0.47). Among the 122 patients who initially received vancomycin empirically, those who were switched to nafcillin or cefazolin (66/122) had 69% lower mortality hazards (adjusted HR: 0.31; 95% CI: 0.10, 0.95) compared to those who remained on vancomycin.

conclusionsReceipt of nafcillin or cefazolin was protective against mortality compared to vancomycin even when therapy was altered after culture results identified MSSA. Convenience of vancomycin dosing may not outweigh the potential benefits of nafcillin or cefazolin in the treatment of MSSA bacteremia.

Indexed as

AdultAgedAnti-Bacterial AgentsBacteremiaCefazolinCohort StudiesFemaleHumansMaleMiddle AgedModels, StatisticalNafcillinRetrospective StudiesStaphylococcal InfectionsStaphylococcus aureusSurvival AnalysisAnti-Bacterial AgentsCefazolinNafcillinVancomycin

Identifiers

PMID22011388
PMCPMC3206863
OpenAlexW2045190713

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.