scholarly journals Attributable mortality of vancomycin resistance in ampicillin-resistant Enterococcus faecium bacteremia in Denmark and the Netherlands: A matched cohort study

2021 ◽  
pp. 1-9
Author(s):  
Wouter C. Rottier ◽  
Mette Pinholt ◽  
Akke K. van der Bij ◽  
Magnus Arpi ◽  
Sybrandus N. Blank ◽  
...  
Keyword(s):  
Cohort Study ◽  
The Netherlands ◽  
Antibiotic Therapy ◽  
Enterococcus Faecium ◽  
Mortality Rates ◽  
Vancomycin Resistance ◽  
Attributable Mortality ◽  
Matched Cohort ◽  
Matched Cohort Study ◽  
The Impact

Abstract Objective: To study whether replacement of nosocomial ampicillin-resistant Enterococcus faecium (ARE) clones by vancomycin-resistant E. faecium (VRE), belonging to the same genetic lineages, increases mortality in patients with E. faecium bacteremia, and to evaluate whether any such increase is mediated by a delay in appropriate antibiotic therapy. Design: Retrospective, matched-cohort study. Setting: The study included 20 Dutch and Danish hospitals from 2009 to 2014. Patients: Within the study period, 63 patients with VRE bacteremia (36 Dutch and 27 Danish) were identified and subsequently matched to 234 patients with ARE bacteremia (130 Dutch and 104 Danish) for hospital, ward, length of hospital stay prior to bacteremia, and age. For all patients, 30-day mortality after bacteremia onset was assessed. Methods: The risk ratio (RR) reflecting the impact of vancomycin resistance on 30-day mortality was estimated using Cox regression with further analytic control for confounding factors. Results: The 30-day mortality rates were 27% and 38% for ARE in the Netherlands and Denmark, respectively, and the 30-day mortality rates were 33% and 48% for VRE in these respective countries. The adjusted RR for 30-day mortality for VRE was 1.54 (95% confidence interval, 1.06–2.25). Although appropriate antibiotic therapy was initiated later for VRE than for ARE bacteremia, further analysis did not reveal mediation of the increased mortality risk. Conclusions: Compared to ARE bacteremia, VRE bacteremia was associated with higher 30-day mortality. One explanation for this association would be increased virulence of VRE, although both phenotypes belong to the same well-characterized core genomic lineage. Alternatively, it may be the result of unmeasured confounding.

scholarly journals Attributable mortality of vancomycin resistance in ampicillin-resistant Enterococcus faecium bacteremia in Denmark and the Netherlands: a matched cohort study

2020 ◽  
Author(s):  
Wouter Carel Rottier ◽  
Mette Pinholt ◽  
Akke K. van der Bij ◽  
Magnus Arpi ◽  
Sybrandus N. Blank ◽  
...  
Keyword(s):  
Cohort Study ◽  
The Netherlands ◽  
Enterococcus Faecium ◽  
Length Of Hospital Stay ◽  
Vancomycin Resistance ◽  
Attributable Mortality ◽  
Genetic Lineage ◽  
Matched Cohort ◽  
Matched Cohort Study ◽  
Appropriate Therapy

Background: In many European hospitals, ampicillin-resistant Enterococcus faecium (ARE) is endemic, while outbreaks of vancomycin-resistant E. faecium (VRE), belonging to the same genetic lineage, are increasingly reported. We studied the attributable mortality due to vancomycin resistance in patients with E. faecium bacteremia and evaluated whether this is mediated by a delay in appropriate antibiotic therapy. Methods: In a retrospective matched cohort study, patients with VRE bacteremia occurring between 2009 and 2014 in 20 Dutch and Danish hospitals were matched to patients with ARE bacteremia, on hospital, ward, length of hospital stay prior to bacteremia, and age. The risk ratio (RR) for 30-day mortality contrasting VRE with ARE was estimated with further analytic control for confounding factors. Results: In all, 63 VRE and 234 ARE episodes were matched (36 and 130 for the Netherlands and 27 and 104 for Denmark). Crude 30-day mortality was 27% and 38% for ARE in the Netherlands and Denmark, respectively, and 33% and 48% for VRE in the respective countries. The adjusted RR for 30-day mortality for VRE was 1.54 (95% confidence interval (CI) 1.06-2.25). Although appropriate therapy was initiated later for VRE than for ARE bacteremia, this did not appear to mediate the increased mortality risk. Conclusions: Compared to ARE bacteremia, VRE bacteremia was associated with higher 30-day mortality. One explanation for this association would be increased virulence of VRE, although both phenotypes belong to the same well-characterized core genomic lineage. Alternatively, it may be the result of unmeasured confounding.

scholarly journals Attributable mortality of antibiotic resistance in gram-negative infections in the Netherlands: a parallel matched cohort study

2020 ◽  
Author(s):  
Wouter C. Rottier ◽  
J.W. Timotëus Deelen ◽  
Giorgia Caruana ◽  
Anton G.M. Buiting ◽  
J. Wendelien Dorigo-Zetsma ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Cohort Study ◽  
The Netherlands ◽  
Attributable Mortality ◽  
Matched Cohort ◽  
Gram Negative ◽  
Matched Cohort Study

scholarly journals Incidence of osteoporosis and fragility fractures in asthma: a UK population-based matched cohort study

2020 ◽  
pp. 2001251
Author(s):  
Christos V. Chalitsios ◽  
Tricia M. McKeever ◽  
Dominick E. Shaw
Keyword(s):  
Cohort Study ◽  
General Population ◽  
Cox Regression ◽  
Inhaled Corticosteroids ◽  
Fragility Fractures ◽  
Practice Research ◽  
Research Database ◽  
Matched Cohort ◽  
Matched Cohort Study ◽  
The Impact

BackgroundOsteoporosis and fragility fractures (FF) are associated with corticosteroids which are the mainstay treatment for asthma; however, these bone comorbidities within asthma need to be better described.MethodsA matched cohort study was conducted using the Clinical Practice Research Database (CPRD). Adults with an incident asthma code were identified and matched, with up to four randomly selected people without asthma, by age, gender, and practice. Osteoporosis and FF incidence rates were calculated, and Cox regression was performed comparing hazard rates to the general population. We report the impact of age, gender, glucocorticoids, and the risk of specific fractures.ResultsPatients with asthma had a higher risk of osteoporosis (aHR=1.18, 95% CI: 1.13–1.23) and were 12% (aHR=1.12, 95% CI: 1.07–1.16) more likely to sustain FF than the general population. Age modified the effect of asthma on osteoporosis and FF, such that effect to be stronger in younger people (pinteraction<0.0001). Vertebral (aHR=1.40, 95% CI: 1.33–1.48), and forearm-wrist (aHR=1.27, 95% CI: 1.22–1.32) were the sites linked with a larger incidence. A dose-response relationship between oral corticosteroids (OCS) and osteoporosis was observed, whereas the risk of FF increased in those with 6 or more OCS courses per year. Regular use of inhaled corticosteroids (ICS) increased the risk of both bone conditions.ConclusionPatients with asthma are more likely to develop osteoporosis or sustain FF than the general population with a particular concern in younger people and those more frequently using OCS and ICS.

scholarly journals Telemedicine is associated with rapid transfer and fewer involuntary holds among patients presenting with suicidal ideation in rural hospitals: a propensity matched cohort study

2019 ◽  
Vol 73 (11) ◽  
pp. 1033-1039 ◽  
Author(s):  
Jayamalathi Priyanka Vakkalanka ◽  
Karisa K Harland ◽  
Amy Wittrock ◽  
Margaret Schmidt ◽  
Luke Mack ◽  
...  
Keyword(s):  
Cohort Study ◽  
Suicidal Ideation ◽  
Propensity Scores ◽  
Physical Restraint ◽  
Rural Hospitals ◽  
Matched Cohort ◽  
Matched Cohort Study ◽  
Critical Access Hospital ◽  
Transferred Patients ◽  
The Impact

ObjectiveThe purpose of this study was to evaluate the impact of telemedicine in clinical management and patient outcomes of patients presenting to rural critical access hospital emergency departments (EDs) with suicidal ideation or attempt.MethodsRetrospective propensity-matched cohort study of patients treated for suicidal attempt and ideation in 13 rural critical access hospital EDs participating in a telemedicine network. Patients for whom telemedicine was used were matched 1:1 to those who did not have telemedicine as an exposure (n=139 TM+, n=139 TM–) using optimal matching of propensity scores based on administrative data. Our primary outcome was ED length-of-stay (LOS), and secondary outcomes included admission proportion, use of chemical or physical restraint, 30 day ED return, involuntary detention orders, treatment/follow-up plan and 6-month mortality. Analyses for multivariable models were conducted using conditional linear and logistic regression clustered on matched pairs with purposeful selection of covariates.ResultsMean ED LOS was not associated with telemedicine consultation among all patients, but was associated with a 29.3% decrease in transferred patients (95% CI 11.1 to 47.5). The adjusted odds of hospital admission (either local or through transfer) was 2.35 (95% CI 1.10 to 5.00) times greater among TM+ patients compared with TM– patients. Involuntary hold placement was lower in those exposed to telemedicine (adjusted odds ratio (aOR): 0.48; 95% CI 0.23 to 0.97). We did not observe significant differences in other outcomes.ConclusionThe role of telemedicine in influencing access, quality and efficiency of care in underserved rural hospitals is critically important as these networks become more prevalent in rural healthcare environments.

scholarly journals Advanced Access scheduling in general practice and use of primary care: a Danish population-based matched cohort study

BJGP Open ◽  
2020 ◽  
Vol 4 (5) ◽  
pp. bjgpopen20X101091
Author(s):  
Maria Bang ◽  
Henrik Schou Pedersen ◽  
Bodil Hammer Bech ◽  
Claus Høstrup Vestergaard ◽  
Jannik Falhof ◽  
...  
Keyword(s):  
Primary Care ◽  
General Practice ◽  
Cohort Study ◽  
Population Based ◽  
Matched Cohort ◽  
Face To Face ◽  
Matched Cohort Study ◽  
Adjusted Incidence Rate ◽  
Advanced Access ◽  
The Impact

BackgroundAdvanced access scheduling (AAS) allows patients to receive care from their GP at the time chosen by the patient. AAS has shown to increase the accessibility to general practice, but little is known about how AAS implementation affects the use of in-hours and out-of-hours (OOH) services.AimTo describe the impact of AAS on the use of in-hours and OOH services in primary care.Design & settingA population-based matched cohort study using Danish register data.MethodA total of 161 901 patients listed in 33 general practices with AAS were matched with 287 837 reference patients listed in 66 reference practices without AAS. Outcomes of interest were use of daytime face-to-face consultations, and use of OOH face-to-face and phone consultations in a 2-year period preceding and following AAS implementation.ResultsNo significant differences were seen between AAS practices and reference practices. During the year following AAS implementation, the number of daytime face-to-face consultations was 3% (adjusted incidence rate ratio [aIRR] = 1.03; 95% confidence interval [CI] = 0.99 to 1.07) higher in the AAS practices compared with the number in the reference practices. Patients listed with an AAS practice had 2% (aIRR = 0.98; 95% CI = 0.92 to 1.04) fewer OOH phone consultations and 6% (aIRR = 0.94; 95% CI = 0.86 to 1.02) fewer OOH face-to-face consultations compared with patients listed with a reference practice.ConclusionThis study showed no significant differences following AAS implementation. However, a trend was seen towards slightly higher use of daytime primary care and lower use of OOH primary care.

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