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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 5 of 5 Research Studies DisplayedMazi PB, Olsen MA, Stwalley D
Attributable mortality of Candida bloodstream infections in the modern era: a propensity score analysis.
The purpose of this retrospective cohort study was to quantify the mortality attributed to Candida bloodstream infections (BSI). The researchers identified 626 adult patients with Candida BSI that were frequency-matched with 6269 control patients with similar candida BSI risk-factors. The study found that the 90-day crude mortality rate was 42.4% for Candida BSI cases and 17.1% for frequency matched controls. After propensity score-matching, the attributable risk difference for 90-day mortality was 28.4% with hazard ratio (HR) of 2.12. In the stratified analysis, the 90-day mortality risk was highest in patients in the lowest risk quintile to develop Candida BSI. Patients in this lowest risk quintile accounted for 61% of the untreated patients with Candida BSI. Sixty-nine percent of untreated patients died versus 35% of treated patients.
AHRQ-funded; HS019455.
Citation: Mazi PB, Olsen MA, Stwalley D .
Attributable mortality of Candida bloodstream infections in the modern era: a propensity score analysis.
Clin Infect Dis 2022 Sep 29;75(6):1031-36. doi: 10.1093/cid/ciac004..
Keywords: Infectious Diseases, Mortality, Sepsis
Anesi GL, Jablonski J, Harhay MO
Characteristics, outcomes, and trends of patients with COVID-19-related critical illness at a learning health system in the United States.
This study’s objective is to describe the epidemiology of COVID-19-related critical illness, including trends in outcomes and care delivery, using five hospitals within the University of Pennsylvania Health System as a setting. Findings showed that, among patients with COVID-19-related critical illness admitted to ICUs of a learning health system in the United States, mortality seemed to decrease over time despite stable patient characteristics. Recommendations included further studies to confirm this result and to investigate causal mechanisms.
AHRQ-funded; HS026372.
Citation: Anesi GL, Jablonski J, Harhay MO .
Characteristics, outcomes, and trends of patients with COVID-19-related critical illness at a learning health system in the United States.
Ann Intern Med 2021 May;174(5):613-21. doi: 10.7326/m20-5327..
Keywords: COVID-19, Critical Care, Intensive Care Unit (ICU), Mortality, Hospitals, Outcomes, Infectious Diseases
Bramante CT, Ingraham NE, Murray TA
Metformin and risk of mortality in patients hospitalised with COVID-19: a retrospective cohort analysis.
This study examined whether metformin use by patients with diagnosed with type 2 diabetes had reduced mortality when hospitalized for COVID-19. Pharmacy claims data from UnitedHealth Group’s Clinical Discovery Claims Database was used. Patient data were included if they were aged 18 years or older; had type 2 diabetes or obesity (defined based on claims); at least 6 months of continuous enrolment in 2019; and admission to hospital for COVID-19 confirmed by PCR; manual chart review by UHG; or reported from the hospital to UHG. Metformin was not associated with significant reduction in mortality among men, but there was an association with decreased mortality in women.
AHRQ-funded; HS026379.
Citation: Bramante CT, Ingraham NE, Murray TA .
Metformin and risk of mortality in patients hospitalised with COVID-19: a retrospective cohort analysis.
Lancet Healthy Longev 2021 Jan;2(1):e34-e41. doi: 10.1016/s2666-7568(20)30033-7..
Keywords: COVID-19, Hospitalization, Medication, Mortality, Risk, Diabetes, Chronic Conditions, Public Health, Infectious Diseases
Mejia-Chew c, O'Halloran JA, Olsen MA
Effect of infectious disease consultation on mortality and treatment of patients with candida bloodstream infections: a retrospective, cohort study.
Candida bloodstream infection is associated with high mortality. Infectious disease consultation improves outcomes in several infections, including Staphylococcus aureus and cryptococcosis, as well as multidrug-resistant organisms. In this study, the investigators aimed to examine the association between infectious disease consultation and differences in management with mortality in candida bloodstream infections.
AHRQ-funded; HS019455.
Citation: Mejia-Chew c, O'Halloran JA, Olsen MA .
Effect of infectious disease consultation on mortality and treatment of patients with candida bloodstream infections: a retrospective, cohort study.
Lancet Infect Dis 2019 Dec;19(12):1336-44. doi: 10.1016/s1473-3099(19)30405-0..
Keywords: Infectious Diseases, Public Health, Mortality
Bartsch SM, Gorham K, Lee BY
The cost of an Ebola case.
The researchers developed a mathematical model to estimate the cost of an Ebola virus disease (EVD) case from the provider and societal perspectives in the three most affected countries of Guinea, Liberia, and Sierra Leone. Their model estimates the total societal cost of an EVD case with full recovery ranges from $480 to $912, while that of an EVD case not surviving ranges from $5,929 to $18,929, varying by age and country.
AHRQ-funded; HS023317.
Citation: Bartsch SM, Gorham K, Lee BY .
The cost of an Ebola case.
Pathog Glob Health 2015 Feb;109(1):4-9. doi: 10.1179/2047773214y.0000000169..
Keywords: Healthcare Costs, Mortality, Public Health, Infectious Diseases