National Healthcare Quality and Disparities Report
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AHRQ Research Studies Date
Topics
- Antibiotics (4)
- Antimicrobial Stewardship (1)
- Children/Adolescents (2)
- (-) Community-Acquired Infections (15)
- Comparative Effectiveness (2)
- Diagnostic Safety and Quality (1)
- Elderly (1)
- Evidence-Based Practice (1)
- Guidelines (1)
- Heart Disease and Health (1)
- Hospitalization (1)
- Infectious Diseases (3)
- Influenza (2)
- Injuries and Wounds (1)
- Inpatient Care (1)
- Medication (2)
- Methicillin-Resistant Staphylococcus aureus (MRSA) (2)
- Outcomes (3)
- Patient-Centered Outcomes Research (2)
- Patient Safety (1)
- Pneumonia (10)
- Practice-Based Research Network (PBRN) (1)
- Respiratory Conditions (4)
- Risk (1)
- Sepsis (2)
- Urinary Tract Infection (UTI) (2)
AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 15 of 15 Research Studies DisplayedDeshpande A, Klompas M, Yu PC A, Klompas M, Yu PC
Influenza testing and treatment among patients hospitalized with community-acquired pneumonia.
This study looked at testing rates for influenza in hospitalized patients admitted for community-acquired pneumonia (CAP) and whether it is associated with antiviral treatment and shorter antibiotic courses. The study included patients admitted in 179 US hospitals with pneumonia from 2010 to 2015. The authors assessed influenza testing and compared antimicrobial utilization and the outcomes of test-positive, test-negative, and untested patients. Among 166,268 patients with CAP, 23.3% were tested for influenza, of whom 11.5% tested positive. Testing increased from 15.4% to 35.5% from 2010 to 2015 and was more than triple the rate during flu season (October-May) vs June to September. Patients who tested positive for influenza received antiviral agents more often and antibiotics less often and for shorter courses than patients testing negative. Patients who received early antiviral treatment with oseltamivir experienced lower 14-day in-hospital mortality, lower costs, and shorter length of stay vs patients receiving oseltamivir later or not at all.
AHRQ-funded; HS024277.
Citation: Deshpande A, Klompas M, Yu PC A, Klompas M, Yu PC .
Influenza testing and treatment among patients hospitalized with community-acquired pneumonia.
Chest 2022 Sep;162(3):543-55. doi: 10.1016/j.chest.2022.01.053..
Keywords: Influenza, Pneumonia, Community-Acquired Infections, Outcomes, Medication, Inpatient Care
Vaughn VM, Gandhi TN, Hofer TP
A statewide collaborative quality initiative to improve antibiotic duration and outcomes in patients hospitalized with uncomplicated community-acquired pneumonia.
Researchers sought to improve antibiotic duration for community-acquired pneumonia (CAP) across 41 hospitals participating in the Michigan Hospital Medicine Safety Consortium (HMS). They found that, across diverse hospitals, HMS participation was associated with more appropriate use of short-course therapy and fewer adverse events in hospitalized patients with uncomplicated CAP.
AHRQ-funded; HS026530.
Citation: Vaughn VM, Gandhi TN, Hofer TP .
A statewide collaborative quality initiative to improve antibiotic duration and outcomes in patients hospitalized with uncomplicated community-acquired pneumonia.
Clin Infect Dis 2022 Aug 31;75(3):460-67. doi: 10.1093/cid/ciab950..
Keywords: Community-Acquired Infections, Pneumonia, Antibiotics, Antimicrobial Stewardship, Medication, Respiratory Conditions
Rothberg MB, Imrey PB, Guo N MB, Imrey PB, Guo N
A risk model to identify Legionella among patients admitted with community-acquired pneumonia: a retrospective cohort study.
This study’s goal was to derive and externally validate a model to predict a positive Legionella test among adult inpatients diagnosed with pneumonia. The study used data from 177 US hospitals in the Premier Healthcare Database and 12 Cleveland Clinic Health System (CCHS) hospitals. Of 166,689 patients hospitalized for pneumonia, out of 43,070 tested for Legionella 642 (1.5%) tested positive. The strongest predictors of a positive test were a local outbreak, June-October occurrence, hyponatremia, smoking and diarrhea. A negative test was associated with prior admission within 6 months and chronic pulmonary disease.
AHRQ-funded; HS024277.
Citation: Rothberg MB, Imrey PB, Guo N MB, Imrey PB, Guo N .
A risk model to identify Legionella among patients admitted with community-acquired pneumonia: a retrospective cohort study.
J Hosp Med 2022 Aug;17(8):624-32. doi: 10.1002/jhm.12919..
Keywords: Pneumonia, Community-Acquired Infections, Infectious Diseases, Respiratory Conditions
Haessler S, Guo N, Deshpande A
Etiology, treatments, and outcomes of patients with severe community-acquired pneumonia in a large U.S. sample.
This study compared the clinical practice and outcomes in severe community-acquired pneumonia (sCAP) patients to those in non-sCAP patients using guideline-defined criteria for sCAP. The definition for sCAP includes a principal diagnosis of pneumonia or a secondary pneumonia diagnosis paired with a principal diagnosis of sepsis or respiratory failure. One-hundred seventy-seven US hospitals within the Premier Healthcare Database were used to identify 154,799 patients with pneumonia, with 14.1% meeting criteria for sCAP. The sCAP patients had higher organ failure scores and inpatient mortality, longer lengths of stay, and higher costs than those with nonsevere disease. Patients with sCAP had twice the rate of positive blood cultures and respiratory cultures and more often had isolates resistant to first-line community-acquired pneumonia antibiotics. The most common pathogen acquired from blood cultures was Streptococcus pneumoniae and from the respiratory tract Staphylococcus aureus and Pseudomonas species. The most common antibiotics prescribed were vancomycin (65%) and piperacillin-tazobactam (42.8%), regardless of cultures positive for a resistant organism.
AHRQ-funded; HS024277.
Citation: Haessler S, Guo N, Deshpande A .
Etiology, treatments, and outcomes of patients with severe community-acquired pneumonia in a large U.S. sample.
Crit Care Med 2022 Jul;50(7):1063-71. doi: 10.1097/ccm.0000000000005498..
Keywords: Community-Acquired Infections, Pneumonia, Respiratory Conditions, Outcomes
Gupta A, Petty L, Gandhi T
Overdiagnosis of urinary tract infection linked to overdiagnosis of pneumonia: a multihospital cohort study.
This study’s goal was to determine if there is a correlation between overdiagnosis of urinary tract infection (UTI) and overdiagnosis of community-acquired pneumonia (CAP) in hospitals, resulting in unnecessary antibiotic use and diagnostic delays. The authors first determined the proportion of hospitalized patients treated for CAP or UTI at 46 hospitals in Michigan who were overdiagnosed according to national guideline definitions. Then they used Pearson's correlation coefficient to compare hospital proportions of overdiagnosis of CAP and UTI. They included 14,085 patients treated for CAP and 10,398 patients treated for UTI. There was a moderate correlation within hospitals of the proportion of patients overdiagnosed with UTI and those overdiagnosed with CAP.
AHRQ-funded; HS026530.
Citation: Gupta A, Petty L, Gandhi T .
Overdiagnosis of urinary tract infection linked to overdiagnosis of pneumonia: a multihospital cohort study.
BMJ Qual Saf 2022 May;31(5):383-86. doi: 10.1136/bmjqs-2021-013565..
Keywords: Urinary Tract Infection (UTI), Pneumonia, Community-Acquired Infections, Diagnostic Safety and Quality
D'Orazio B, Ramachandran J, Khalida C
Stakeholder engagement in a comparative effectiveness/implementation study to prevent Staphylococcus aureus infection recurrence: CA-MRSA Project (CAMP2).
The purpose of this study was to determine whether the presence and participation of a stakeholder committee would positively impact the effectiveness of the design and execution of a home-based Methicillin-resistant Staphylococcus aureus and methicillin-sensitive Staphylococcus aureus infection prevention intervention. The trial utilized community health workers to implement infection prevention protocols in participant’s homes, including home visits, sampling household surfaces at baseline and then three months, and obtaining surveillance cultures from index patients and household members. The study assembled and convened The Clinician and Patient Stakeholder Advisory Committee (CPSAC), comprised of New York-based federally qualified health centers (FQHCs) and community health emergency departments, laboratory and clinical researchers, clinicians, and patient stakeholders. The CPSAC was tasked with trial oversight and shared decision-making and troubleshooting, and convened both in person and remotely. The researchers concluded that the inclusion and engagement of the CPSAC during the trial design and implementation was highly effective in addressing and resolving challenges in both participant recruitment and home visits.
AHRQ-funded; HS021667.
Citation: D'Orazio B, Ramachandran J, Khalida C .
Stakeholder engagement in a comparative effectiveness/implementation study to prevent Staphylococcus aureus infection recurrence: CA-MRSA Project (CAMP2).
Prog Community Health Partnersh 2022;16(1):45-60. doi: 10.1353/cpr.2022.0005..
Keywords: Comparative Effectiveness, Patient-Centered Outcomes Research, Community-Acquired Infections, Infectious Diseases, Methicillin-Resistant Staphylococcus aureus (MRSA), Evidence-Based Practice
Bartley PS, Deshpande A, Yu PC
Bacterial coinfection in influenza pneumonia: rates, pathogens, and outcomes.
Among patients hospitalized for influenza pneumonia, the researchers reported the rate of coinfection and distribution of pathogens and also compared outcomes of patients with and without bacterial coinfection. They found that, in a large US inpatient sample hospitalized with influenza and community-acquired pneumonia, Staphylococcus aureus was the most frequent cause of bacterial coinfection. Coinfection was associated with worse outcomes and higher costs.
AHRQ-funded; HS024277.
Citation: Bartley PS, Deshpande A, Yu PC .
Bacterial coinfection in influenza pneumonia: rates, pathogens, and outcomes.
Infect Control Hosp Epidemiol 2022 Feb;43(2):212-17. doi: 10.1017/ice.2021.96..
Keywords: Influenza, Pneumonia, Infectious Diseases, Community-Acquired Infections
Rastogi R, Yu PC, Deshpande A
Treatment and outcomes among patients ≥85 years hospitalized with community-acquired pneumonia.
This retrospective cohort study’s objective was to describe community-acquired pneumonia (CAP) among patients ≥85 years and compare them to patients aged 65-74. Findings showed that patients aged 85 and over have different comorbidities and etiologies of CAP, receive less intense treatment, and have greater mortality than patients between 65 and 75 years.
AHRQ-funded; HS024277.
Citation: Rastogi R, Yu PC, Deshpande A .
Treatment and outcomes among patients ≥85 years hospitalized with community-acquired pneumonia.
J Investig Med 2022 Feb;70(2):376-82. doi: 10.1136/jim-2021-002078..
Keywords: Elderly, Community-Acquired Infections, Pneumonia, Outcomes, Hospitalization
Gurigis FW, Donnelly JP, Dodani S
Cholesterol levels and long-term rates of community-acquired sepsis.
The researchers sought to determine the relationship between baseline cholesterol levels and long-term rates of sepsis. They found that low low-density lipoprotein cholesterol (LDL-C) was associated with higher long-terms rates of community-acquired sepsis. High-density lipoprotein cholesterol (HDL-C) level was not associated with long-term sepsis rates.
AHRQ-funded; HS013852.
Citation: Gurigis FW, Donnelly JP, Dodani S .
Cholesterol levels and long-term rates of community-acquired sepsis.
Crit Care 2016 Dec 23;20(1):408. doi: 10.1186/s13054-016-1579-8.
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Keywords: Heart Disease and Health, Community-Acquired Infections, Sepsis
Anesi JA, Lautenbach E, Nachamkin I
Clinical and molecular characterization of community-onset urinary tract infections due to extended-spectrum cephalosporin-resistant Enterobacteriaceae.
The objective of this paper was to evaluate risk factors for and molecular characteristics of community-onset extended-spectrum cephalosporin-resistant (ESC-R) Enterobacteriaceae (EB) urinary tract infections (UTIs) in a US health system. The investigators found that use of trimethoprim-sulfamethoxazole, older age, diabetes, and presentation to the emergency department were associated with community-onset ESC-R EB UTI, with a high prevalence of CTX-M among their community isolates.
AHRQ-funded; HS020002.
Citation: Anesi JA, Lautenbach E, Nachamkin I .
Clinical and molecular characterization of community-onset urinary tract infections due to extended-spectrum cephalosporin-resistant Enterobacteriaceae.
Infect Control Hosp Epidemiol 2016 Dec;37(12):1433-39. doi: 10.1017/ice.2016.225.
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Keywords: Antibiotics, Community-Acquired Infections, Patient Safety, Urinary Tract Infection (UTI)
Piper Jenks N, Pardos de la Gandara M, D'Orazio BM
Differences in prevalence of community-associated MRSA and MSSA among U.S. and non-U.S. born populations in six New York community health centers.
As part of a research collaborative, 6 New York City-area community health centers recruited patients with Skin and Soft Tissue Infections (SSTIs). This study found that although not statistically significant, immigrants had lower rates of Methicillin-Resistant Staphylococcus aureus (MRSA) infections than did native-born participants, and immigrants showed significantly higher rates of Methicillin-Susceptible Staphylococcus aureus (MSSA) wound cultures.
AHRQ-funded; HS021667.
Citation: Piper Jenks N, Pardos de la Gandara M, D'Orazio BM .
Differences in prevalence of community-associated MRSA and MSSA among U.S. and non-U.S. born populations in six New York community health centers.
Travel Med Infect Dis 2016 Nov - Dec;14(6):551-60. doi: 10.1016/j.tmaid.2016.10.003.
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Keywords: Community-Acquired Infections, Methicillin-Resistant Staphylococcus aureus (MRSA), Injuries and Wounds, Practice-Based Research Network (PBRN), Antibiotics
Belforti RK, Lagu T, Haessler S
Association between initial route of fluoroquinolone administration and outcomes in patients hospitalized for community-acquired pneumonia.
The objective of this study was to compare outcomes of hospitalized patients with community-acquired pneumonia receiving intravenous vs oral respiratory fluoroquinolones. The authors concluded that there was no association between initial route of administration and outcomes.
AHRQ-funded; HS018723.
Citation: Belforti RK, Lagu T, Haessler S .
Association between initial route of fluoroquinolone administration and outcomes in patients hospitalized for community-acquired pneumonia.
Clin Infect Dis 2016 Jul 1;63(1):1-9. doi: 10.1093/cid/ciw209.
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Keywords: Community-Acquired Infections, Pneumonia, Comparative Effectiveness, Patient-Centered Outcomes Research, Antibiotics
Wang HE, Donnelly JP, Griffin R
Derivation of novel risk prediction scores for community-acquired sepsis and severe sepsis.
The researchers derived and internally validated a Sepsis Risk Score and a Severe Sepsis Risk Score predicting future sepsis and severe sepsis events among community-dwelling adults. They concluded that the Sepsis Risk Score and Severe Sepsis Risk Score predict 10-year sepsis and severe sepsis risk among community-dwelling adults and may aid in sepsis prevention or mitigation efforts.
AHRQ-funded; HS013852.
Citation: Wang HE, Donnelly JP, Griffin R .
Derivation of novel risk prediction scores for community-acquired sepsis and severe sepsis.
Crit Care Med 2016 Jul;44(7):1285-94. doi: 10.1097/ccm.0000000000001666.
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Keywords: Community-Acquired Infections, Risk, Risk, Sepsis
Parikh K, Hall M, Blaschke AJ
Aggregate and hospital-level impact of national guidelines on diagnostic resource utilization for children with pneumonia at children's hospitals.
Researchers sought to evaluate the temporal trends in diagnostic testing associated with guideline implementation among children with community-acquired pneumonia (CAP). They concluded that publication of national pneumonia guidelines in 2011 was associated with modest changes in diagnostic testing for children with CAP. However, the changes varied across hospitals, and the financial impact was modest.
AHRQ-funded; HS022342.
Citation: Parikh K, Hall M, Blaschke AJ .
Aggregate and hospital-level impact of national guidelines on diagnostic resource utilization for children with pneumonia at children's hospitals.
J Hosp Med 2016 May;11(5):317-23. doi: 10.1002/jhm.2534.
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Keywords: Children/Adolescents, Community-Acquired Infections, Guidelines, Pneumonia
Self WH, Williams DJ, Zhu Y
Respiratory viral detection in children and adults: comparing asymptomatic controls and patients with community-acquired pneumonia.
The researchers conducted a prospective study to identify the prevalence of 13 viruses in the upper respiratory tract of patients with CAP and concurrently enrolled asymptomatic controls with real-time reverse-transcriptase polymerase chain reaction. They concluded that the probability that a virus detected with real-time reverse-transcriptase polymerase chain reaction in patients with CAP contributed to symptomatic disease varied by age group and specific virus.
AHRQ-funded; HS022342.
Citation: Self WH, Williams DJ, Zhu Y .
Respiratory viral detection in children and adults: comparing asymptomatic controls and patients with community-acquired pneumonia.
J Infect Dis 2016 Feb 15;213(4):584-91. doi: 10.1093/infdis/jiv323.
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Keywords: Children/Adolescents, Community-Acquired Infections, Pneumonia, Respiratory Conditions