Infection Control and Hospital Epidemiology Journal Impact Factor & Information

Publisher: Society of Hospital Epidemiologists of America, Cambridge University Press (CUP)

Journal description

Infection Control and Hospital Epidemiology, the official journal of the Society for Healthcare Epidemiology of America, is a leading monthly journal providing original, peer-reviewed scientific articles for anyone involved with an infection control or epidemiology program with a hospital or health care facility. Written by infection control practitioners and epidemiologists and guided by an Editorial Board composed of the nation's leaders in the field, Infection Control and Hospital Epidemiology provides a critical forum for this vital information.

Current impact factor: 3.94

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 3.938
2012 Impact Factor 4.02
2011 Impact Factor 3.669
2010 Impact Factor 3.751
2009 Impact Factor 2.768
2008 Impact Factor 2.834
2007 Impact Factor 2.989
2006 Impact Factor 2.236
2005 Impact Factor 2.413
2004 Impact Factor 2.266
2003 Impact Factor 1.951
2002 Impact Factor 2.308
2001 Impact Factor 2.62
2000 Impact Factor 2.082
1999 Impact Factor 2.278
1998 Impact Factor 2.508
1997 Impact Factor 2.435
1996 Impact Factor 2.643
1995 Impact Factor 1.893
1994 Impact Factor 1.515
1993 Impact Factor 1.235
1992 Impact Factor 1.416

Impact factor over time

Impact factor

Additional details

5-year impact 3.71
Cited half-life 6.00
Immediacy index 0.79
Eigenfactor 0.02
Article influence 1.32
Website Infection Control & Hospital Epidemiology website
Other titles Infection control and hospital epidemiology (Online), Infection control and hospital epidemiology
ISSN 1559-6834
OCLC 60616144
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Cambridge University Press (CUP)

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Author's Pre-print on author's personal website, departmental website, social media websites, institutional repository, non-commercial subject-based repositories, such as PubMed Central, Europe PMC or arXiv
    • Author's post-print on author's personal website on acceptance of publication
    • Author's post-print on departmental website, institutional repository, non-commercial subject-based repositories, such as PubMed Central, Europe PMC or arXiv, after a 6 months embargo
    • Publisher's version/PDF cannot be used
    • Published abstract may be deposited
    • Pre-print to record acceptance for publication
    • Publisher copyright and source must be acknowledged with set statement, for deposit of Authors Post-print or Publisher's version/PDF
    • Must link to publisher version
    • Publisher last reviewed on 07/10/2014
    • This policy is an exception to the default policies of 'Cambridge University Press (CUP)'
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Of 134 patients diagnosed with Clostridium difficile infection, 30 (22%) did not meet clinical criteria for testing because they lacked significant diarrhea or had alternative explanations for diarrhea and no recent antibiotic exposure. For these patients, skin and/or environmental contamination was common only in those with prior antibiotic exposure. Infect. Control Hosp. Epidemiol. 2015;00(0):1-3.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.191
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    ABSTRACT: OBJECTIVE To develop a method for calculating the number of healthcare-associated infections (HAIs) that must be prevented to reach a HAI reduction goal and identifying and prioritizing healthcare facilities where the largest reductions can be achieved. SETTING Acute care hospitals that report HAI data to the Centers for Disease Control and Prevention's National Healthcare Safety Network. METHODS The cumulative attributable difference (CAD) is calculated by subtracting a numerical prevention target from an observed number of HAIs. The prevention target is the product of the predicted number of HAIs and a standardized infection ratio goal, which represents a HAI reduction goal. The CAD is a numeric value that if positive is the number of infections to prevent to reach the HAI reduction goal. We calculated the CAD for catheter-associated urinary tract infections for each of the 3,639 hospitals that reported such data to National Healthcare Safety Network in 2013 and ranked the hospitals by their CAD values in descending order. RESULTS Of 1,578 hospitals with positive CAD values, preventing 10,040 catheter-associated urinary tract infections at 293 hospitals (19%) with the highest CAD would enable achievement of the national 25% catheter-associated urinary tract infection reduction goal. CONCLUSION The CAD is a new metric that facilitates ranking of facilities, and locations within facilities, to prioritize HAI prevention efforts where the greatest impact can be achieved toward a HAI reduction goal. Infect. Control Hosp. Epidemiol. 2015;00(0):1-6.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.201
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    ABSTRACT: Environmental samples were collected from 100 hospital rooms, 32 noncontact rooms, and 68 contact isolation rooms. We isolated 202 and 1,830 MRSA colonies in noncontact and contact isolation rooms, respectively. The study identified MRSA isolates in hospital rooms of patients without colonization or infection with MRSA. Infect. Control Hosp. Epidemiol. 2015;00(0):1-3.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.207
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    ABSTRACT: OBJECTIVE The Centers for Disease Control and Prevention (CDC) has developed an approach to ventilator-associated events (VAE) surveillance. Using these methods, this study was performed to investigate VAE incidences and to test whether VAEs are associated with poorer outcomes in China. DESIGN A 4-month, prospective multicenter surveillance study between April and July 2013. SETTING Our study included 15 adult intensive care units (ICUs) of 15 hospitals in China. PATIENTS Patients admitted to ICUs during the study period METHODS Patients on mechanical ventilation (MV) were monitored for VAEs: ventilator-associated conditions (VACs), infection-related ventilator-associated complications (IVACs), and possible or probable ventilator-associated pneumonia (VAP). Patients with and without VACs were compared with regard to duration of MV, ICU length of stay (LOS), overall hospital LOS, and mortality rate. RESULTS During the study period, 2,356 of the 5,256 patients admitted to ICUs received MV for 8,438 ventilator days. Of these patients, 636 were on MV >2 days. VACs were identified in 94 cases (4.0%; 11.1 cases per 1,000 ventilator days), including 31 patients with IVACs and 16 with possible VAP but none with probable VAP. Compared with patients without VACs, patients with VACs had longer ICU LOS (by 6.2 days), longer duration on MV (by 7.7 days), and higher hospital mortality rate (50.0% vs 27.3%). The mortality rate attributable to VACs was 11.7%. Compared with those with VACs alone, patients with IVACs had longer duration on MV and increased ICU LOS but no higher mortality rates. CONCLUSIONS In China, surveillance of VACs and IVACs is able to identify MV patients with poorer outcomes. However, surveillance of possible and probable VAP can be problematic. Infect. Control Hosp. Epidemiol. 2015;00(0):1-8.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.200
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    ABSTRACT: This was a randomized controlled pilot study of Lactobacillus rhamnosus GG versus standard of care to prevent gastrointestinal multidrug-resistant organism colonization in intensive care unit patients. Among 70 subjects, there were no significant differences in acquisition or loss of any multidrug-resistant organisms (P>.05) and no probiotic-associated adverse events. Infect. Control Hosp. Epidemiol. 2015;00(0):1���4.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.195
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    ABSTRACT: BACKGROUND Patients with candidemia are at risk for other invasive infections, such as methicillin-resistant Staphylococcus aureus (MRSA) bloodstream infection (BSI). OBJECTIVE To identify the risk factors for, and outcomes of, BSI in adults with Candida spp. and MRSA at the same time or nearly the same time. DESIGN Population-based cohort study. SETTING Metropolitan Atlanta, March 1, 2008, through November 30, 2012. PATIENTS All residents with Candida spp. or MRSA isolated from blood. METHODS The Georgia Emerging Infections Program conducts active, population-based surveillance for candidemia and invasive MRSA. Medical records for patients with incident candidemia were reviewed to identify cases of MRSA coinfection, defined as incident MRSA BSI 30 days before or after candidemia. Multivariate logistic regression was performed to identify factors associated with coinfection in patients with candidemia. RESULTS Among 2,070 adult candidemia cases, 110 (5.3%) had coinfection within 30 days. Among these 110 coinfections, MRSA BSI usually preceded candidemia (60.9%; n=67) or occurred on the same day (20.0%; n=22). The incidence of coinfection per 100,000 population decreased from 1.12 to 0.53 between 2009 and 2012, paralleling the decreased incidence of all MRSA BSIs and candidemia. Thirty-day mortality was similarly high between coinfection cases and candidemia alone (45.2% vs 36.0%, P=.10). Only nursing home residence (odds ratio, 1.72 [95% CI, 1.03-2.86]) predicted coinfection. CONCLUSIONS A small but important proportion of patients with candidemia have MRSA coinfection, suggesting that heightened awareness is warranted after 1 major BSI pathogen is identified. Nursing home residents should be targeted in BSI prevention efforts. Infect. Control Hosp. Epidemiol. 2015;00(0):1-7.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.185
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    ABSTRACT: Combination antibiograms can be used to evaluate organism cross-resistance among multiple antibiotics. As combination therapy is generally favored for the treatment of carbapenemase-producing Enterobacteriaceae (CPE), combination antibiograms provide valuable information about the combination of antibiotics that achieve the highest likelihood of adequate antibiotic coverage against CPE. Infect. Control Hosp. Epidemiol. 2015;00(0):1-3.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.196
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    ABSTRACT: OBJECTIVE To determine whether real-time availability of rapid molecular results of Staphylococcus aureus would impact emergency department clinician antimicrobial selection for adults with cutaneous abscesses. DESIGN We performed a prospective, randomized controlled trial comparing a rapid molecular test with standard of care culture-based testing. Follow-up telephone calls were made at between 2 and 7 days, 1 month, and 3 months after discharge. SETTING Two urban, academic emergency departments. PATIENTS Patients at least 18 years old presenting with a chief complaint of abscess, cellulitis, or insect bite and receiving incision and drainage were eligible. Seven hundred seventy-eight people were assessed for eligibility and 252 met eligibility criteria. METHODS Clinician antibiotic selection and clinical outcomes were evaluated. An ad hoc outcome of test performance was performed. RESULTS We enrolled 252 patients and 126 were randomized to receive the rapid test. Methicillin-susceptible S. aureus-positive patients receiving rapid test results were prescribed beta-lactams more often than controls (absolute difference, 14.5% [95% CI, 1.1%-30.1%]) whereas methicillin-resistant S. aureus-positive patients receiving rapid test results were more often prescribed anti-methicillin-resistant S. aureus antibiotics (absolute difference, 21.5% [95% CI, 10.1%-33.0%]). There were no significant differences between the 2 groups in 1-week or 3-month clinical outcomes. CONCLUSION Availability of rapid molecular test results after incision and drainage was associated with more-targeted antibiotic selection. TRIAL REGISTRATION Identifier: NCT01523899 Infect. Control Hosp. Epidemiol. 2015;00(0):1-8.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.202
  • Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.203
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    ABSTRACT: OBJECTIVE In-hospital transmission of methicillin-susceptible Staphylococcus aureus (MSSA) among neonates remains enigmatic. We describe the epidemiology of MSSA colonization and infection in a 30-bed neonatal ward. DESIGN Multimodal outbreak investigation SETTING A public 800-bed tertiary care university hospital in Switzerland METHODS Investigations in 2012-2013, triggered by a MSSA infection cluster, included prospective MSSA infection surveillance, microbiologic screening of neonates and environment, onsite observations, and a prospective cohort study. MSSA isolates were characterized by pulsed-field gel electrophoresis (PFGE) and selected isolates were examined for multilocus sequence type (MLST) and virulence factors. RESULTS Among 726 in 2012, 30 (4.1%) patients suffered from MSSA infections including 8 (1.1%) with bacteremia. Among 655 admissions in 2013, 13 (2.0%) suffered from MSSA infections including 2 (0.3%) with bacteremia. Among 177 neonates screened for S. aureus carriage, overall 77 (44%) tested positive. A predominant PFGE-1-ST30 strain was identified in 6 of 30 infected neonates (20%) and 30 of 77 colonized neonates (39%). This persistent clone was pvl-negative, tst-positive and belonged to agr group III. We found no environmental point source. MSSA carriage was associated with central vascular catheter use but not with a particular midwife, nurse, physician, or isolette. Observed healthcare worker behavior may have propagated transmission via hands and fomites. Despite multimodal interventions, clonal transmission and colonization continued and another clone, PFGE-6-ST5, became predominant. CONCLUSIONS Hospital-acquired MSSA clones represent a high proportion of MSSA colonization but not MSSA infections in neonate inpatients. In contrast to persisting MSSA, transmission infection rates decreased concurrently with interventions. It remains to be established whether eradication of hospital-acquired MSSA strains would reduce infection rates further. Infect. Control Hosp. Epidemiol. 2015;00(0):1-8.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.184
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    ABSTRACT: BACKGROUND Conflicting reports have been published on the association between Clostridium difficile ribotypes and severe disease outcomes in patients with C. difficile infection (CDI); several so-called hypervirulent ribotypes have been described. We performed a multicenter study to assess severe disease presentation and severe outcomes among CDI patients infected with different ribotypes. METHODS Stool samples that tested positive for C. difficile toxin were collected and cultured from patients who presented to any of 7 different hospitals in Houston, Texas (2011-2013). C. difficile was characterized using a fluorescent PCR ribotyping method. Medical records were reviewed to determine clinical characteristics and ribotype association with severe CDI presentation (ie, leukocytosis and/or hypoalbuminemia) and severe CDI outcomes (ie, ICU admission, ileus, toxic megacolon, colectomy, and/or in-hospital death). RESULTS Our study included 715 patients aged 61±18 years (female: 63%; median Charlson comorbidity index: 2.5±2.4; hospital-onset CDI: 45%; severe CDI: 36.7%; severe CDI outcomes: 12.3%). The most common ribotypes were 027, 014-020, FP311, 002, 078-126, and 001. Ribotype 027 was a significant independent predictor of severe disease (adjusted odds ratio [aOR], 2.24; 95% confidence interval [CI], 1.53-3.29; P<.001) and severe CDI outcomes (aOR, 1.71; 95% CI, 1.02-2.85; P=.041) compared with all other ribotypes in aggregate. However, in an analysis using all common ribotypes as individual variables, ribotype 027 was not associated with severe CDI outcomes more often than other ribotypes. CONCLUSION Ribotype 027 showed virulence equal to that of other ribotypes identified in this endemic setting. Clinical severity markers of CDI may be more predictive of severe CDI outcomes than a particular ribotype. Infect. Control Hosp. Epidemiol. 2015;00(0):1-6.
    Infection Control and Hospital Epidemiology 08/2015; In press. DOI:10.1017/ice.2015.187
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    ABSTRACT: OBJECTIVE To determine the relative risk of invasive methicillin-resistant Staphylococcus aureus (MRSA) infection among non-colonized (NC) patients, intermittently colonized (IC) patients, and persistently colonized (PC) patients. DESIGN Observational cohort study of patient data collected longitudinally over a 41-month period. SETTING Department of Veterans Affairs Eastern Colorado Healthcare System, a tertiary care medical center. PATIENTS Any patient who received ≥5 MRSA nasal swab tests between February 20, 2010, and July 26, 2013. In total, 3,872 patients met these criteria, 0 were excluded, 95% were male, 71% were white, and the mean age was 62.9 years on the date of study entry. METHODS Patients were divided into cohorts based on MRSA colonization status. Physicians reviewed medical records to identify invasive infection and were blinded to colonization status. Cox and Kaplan-Meier analyses were used to assess the relationship between colonization status and invasive infection. RESULTS In total, 102 patients developed invasive MRSA infections, 16.3% of these were PC patients, 11.2% of these were IC patients, and 0.5% of these were NC patients. PC patients were at higher risk of invasive infection than NC patients (hazard ratio [HR] 36.8; 95% CI, 18.4-73.6; P<.001). IC patients were also at higher risk than NC patients (HR, 22.8; 95% CI, 13.3-39.3; P<.001). The difference in risk between PC and IC patients was not statistically significant (HR, 1.61; 95% CI, 0.94-2.78, P=.084). Alternate analysis methods confirmed these results. CONCLUSIONS The risk of invasive MRSA infection is much higher among PC and IC patients, supporting routine clinical testing for colonization. However, this risk is similar among PC and IC patients, suggesting that distinguishing between the 2 colonization states may not be clinically important. Infect. Control Hosp. Epidemiol. 2015;00(0):1-6.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.190
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    ABSTRACT: OBJECTIVE To determine whether use of contact precautions on hospital ward patients is associated with patient adverse events DESIGN Individually matched prospective cohort study SETTING The University of Maryland Medical Center, a tertiary care hospital in Baltimore, Maryland METHODS A total of 296 medical or surgical inpatients admitted to non-intensive care unit hospital wards were enrolled at admission from January to November 2010. Patients on contact precautions were individually matched by hospital unit after an initial 3-day length of stay to patients not on contact precautions. Adverse events were detected by physician chart review and categorized as noninfectious, preventable and severe noninfectious, and infectious adverse events during the patient's stay using the standardized Institute for Healthcare Improvement's Global Trigger Tool. RESULTS The cohort of 148 patients on contact precautions at admission was matched with a cohort of 148 patients not on contact precautions. Of the total 296 subjects, 104 (35.1%) experienced at least 1 adverse event during their hospital stay. Contact precautions were associated with fewer noninfectious adverse events (rate ratio [RtR], 0.70; 95% confidence interval [CI], 0.51-0.95; P=.02) and although not statistically significant, with fewer severe adverse events (RtR, 0.69; 95% CI, 0.46-1.03; P=.07). Preventable adverse events did not significantly differ between patients on contact precautions and patients not on contact precautions (RtR, 0.85; 95% CI, 0.59-1.24; P=.41). CONCLUSIONS Hospital ward patients on contact precautions were less likely to experience noninfectious adverse events during their hospital stay than patients not on contact precautions. Infect. Control Hosp. Epidemiol. 2015;00(0):1-7.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.192
  • Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.198
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    ABSTRACT: Despite published catheter-associated urinary tract infection prevention guidelines, inappropriate catheter use is common. We surveyed housestaff about their knowledge of catheter-associated urinary tract infections at a teaching hospital and found most are aware of prevention guidelines; however, their application to clinical scenarios and catheter practices fall short of national goals. Infect. Control Hosp. Epidemiol. 2015;00(0):1-3.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.189
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    ABSTRACT: OBJECTIVE Computerized decision support systems (CDSSs) can provide indication-specific antimicrobial recommendations and approvals as part of hospital antimicrobial stewardship (AMS) programs. The aim of this study was to assess the performance of a CDSS for surveillance of invasive fungal infections (IFIs) in an inpatient hematology/oncology cohort. METHODS Between November 1, 2012, and October 31, 2013, pediatric hematology/oncology inpatients diagnosed with an IFI were identified through an audit of the CDSS and confirmed by medical record review. The results were compared to hospital diagnostic-related group (DRG) coding for IFI throughout the same period. RESULTS A total of 83 patients were prescribed systemic antifungals according to the CDSS for the 12-month period. The CDSS correctly identified 19 patients with IFI on medical record review, compared with 10 patients identified by DRG coding, of whom 9 were confirmed to have IFI on medical record review. CONCLUSIONS CDSS was superior to diagnostic coding in detecting IFI in an inpatient pediatric hematology/oncology cohort. The functionality of CDSS lends itself to inpatient infectious diseases surveillance but depends on prescriber adherence. Infect. Hosp. Epidemiol. 2015;00(0):1-5.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.179
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    ABSTRACT: BACKGROUND The effectiveness of practice bundles on reducing ventilator-associated pneumonia (VAP) has been questioned. OBJECTIVE To implement a comprehensive program that included a real-time bundle compliance dashboard to improve compliance and reduce ventilator-associated complications. DESIGN Before-and-after quasi-experimental study with interrupted time-series analysis. SETTING Academic medical center. METHODS In 2007 a comprehensive institutional ventilator bundle program was developed. To assess bundle compliance and stimulate instant course correction of noncompliant parameters, a real-time computerized dashboard was developed. Program impact in 6 adult intensive care units (ICUs) was assessed. Bundle compliance was noted as an overall cumulative bundle adherence assessment, reflecting the percentage of time all elements were concurrently in compliance for all patients. RESULTS The VAP rate in all ICUs combined decreased from 19.5 to 9.2 VAPs per 1,000 ventilator-days following program implementation (P<.001). Bundle compliance significantly increased (Z100 score of 23% in August 2007 to 83% in June 2011 [P<.001]). The implementation resulted in a significant monthly decrease in the overall ICU VAP rate of 3.28/1,000 ventilator-days (95% CI, 2.64-3.92/1,000 ventilator-days). Following the intervention, the VAP rate decreased significantly at a rate of 0.20/1,000 ventilator-days per month (95% CI, 0.14-0.30/1,000 ventilator-days per month). Among all adult ICUs combined, improved bundle compliance was moderately correlated with monthly VAP rate reductions (Pearson correlation coefficient, -0.32). CONCLUSION A prevention program using a real-time bundle adherence dashboard was associated with significant sustained decreases in VAP rates and an increase in bundle compliance among adult ICU patients. Infect. Control Hosp. Epidemiol. 2015;00(0):1-7.
    Infection Control and Hospital Epidemiology 08/2015; DOI:10.1017/ice.2015.180