National Healthcare Quality and Disparities Report
Latest available findings on quality of and access to health care
Data
- Data Infographics
- Data Visualizations
- Data Tools
- Data Innovations
- All-Payer Claims Database
- Healthcare Cost and Utilization Project (HCUP)
- Medical Expenditure Panel Survey (MEPS)
- AHRQ Quality Indicator Tools for Data Analytics
- State Snapshots
- United States Health Information Knowledgebase (USHIK)
- Data Sources Available from AHRQ
Search All Research Studies
Topics
- Ambulatory Care and Surgery (1)
- Antibiotics (1)
- Antimicrobial Stewardship (1)
- COVID-19 (6)
- Data (1)
- Electronic Health Records (EHRs) (1)
- Emergency Preparedness (1)
- Evidence-Based Practice (1)
- Healthcare-Associated Infections (HAIs) (1)
- Healthcare Delivery (1)
- Health Information Technology (HIT) (1)
- Hospitals (1)
- Infectious Diseases (4)
- Influenza (1)
- Long-Term Care (1)
- Medication (1)
- Prevention (2)
- (-) Public Health (9)
- (-) Respiratory Conditions (9)
- Vaccination (1)
AHRQ Research Studies
Sign up: AHRQ Research Studies Email updates
Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 9 of 9 Research Studies DisplayedAdams C, Chamberlain A, Wang Y
The role of staff in transmission of SARS-CoV-2 in long-term care facilities.
The purpose of this study was to assess the role of long-term care facility (LTCF) staff in transmission of the SARS-CoV-2 virus. From March 2020 to September the researchers evaluated residents and staff of 60 LTCFs in Georgia. The study found that after vaccines were first distributed to LTCFs in December 202, case counts, outbreak size and duration, and time-varying reproduction number [R(t)] declined rapidly. Staff cases were six times more infectious than resident cases, and unvaccinated resident cases were more infectious than vaccinated resident cases. The researchers concluded that staff were the primary drivers of COVID-19 transmission in LTCFs and vaccines slowed the transmission of the virus and contributed to a reduction in cases in LTCFs.
AHRQ-funded; HS025987.
Citation: Adams C, Chamberlain A, Wang Y .
The role of staff in transmission of SARS-CoV-2 in long-term care facilities.
Epidemiology 2022 Sep 1;33(5):669-77. doi: 10.1097/ede.0000000000001510..
Keywords: COVID-19, Respiratory Conditions, Long-Term Care, Public Health
Keller SC, Caballero TM, Tamma PD
AHRQ Author: Miller MA
Assessment of changes in visits and antibiotic prescribing during the Agency for Healthcare Research and Quality Safety Program for Improving Antibiotic Use and the COVID-19 pandemic.
This cohort study evaluated the effectiveness of the AHRQ Safety Program for Improving Antibiotic Use aimed to improve antibiotic prescribing in ambulatory practices by engaging clinicians and staff to incorporate antibiotic stewardship into practice culture, communication, and decision-making. The study ran from December 2019 through November 2020. A total of 389 ambulatory care practices with over 6.5 million visits to 5483 clinicians were compared from the baseline to completion of the program. Participants included 82 primary care practices, 103 urgent care practices, 34 federally supported practices, 21 pediatric-only practices, 39 pediatric urgent care practices, 21 pediatric-only practices, and 14 other practice types. Of the 389 practices who completed the program, 75% submitted completed data. Visits per practice per month decreased from a mean of 1624 at baseline to a nadir of 906 early in the COVID-19 pandemic (April 2020) and were 1797 at the end of the program. Total antibiotic prescribing decreased from 18.2% of visits at baseline to 9.5% at completion of the program. Acute respiratory infection (ARI) visits per practice per month decreased from a baseline of 321 to a nadir of 76 early in the pandemic (May 2020) and gradually increased through completion of the program (n = 239). Antibiotic prescribing for ARIs decreased from 39.2% at baseline to 24.7% at completion of the program.
AHRQ-authored; AHRQ-funded; 233201500020I.
Citation: Keller SC, Caballero TM, Tamma PD .
Assessment of changes in visits and antibiotic prescribing during the Agency for Healthcare Research and Quality Safety Program for Improving Antibiotic Use and the COVID-19 pandemic.
JAMA Netw Open 2022 Jul;5(7):e2220512. doi: 10.1001/jamanetworkopen.2022.20512..
Keywords: Antimicrobial Stewardship, Antibiotics, Medication, COVID-19, Public Health, Respiratory Conditions
Rhee C, Kanjilal S, Baker M
Duration of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infectivity: when is it safe to discontinue isolation?
This review examined the current evidence of when a Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) patient is no longer infectious and no longer needs to be in isolation. Most patients have persistently positive tests for weeks to months following clinical recovery; but this may not indicate their infectivity. SARS-CoV-2 appears to be most contagious around the time of symptom onset. Infectivity decreases to near-zero after about 10 days in mild-moderately ill patients and 15 days in severely-critically ill and immunocompromised patients. The longest interval associated with replication-competent virus found so far is 20 days from symptom onset.
AHRQ-funded; HS025008.
Citation: Rhee C, Kanjilal S, Baker M .
Duration of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infectivity: when is it safe to discontinue isolation?
Clin Infect Dis 2021 Apr 26;72(8):1467-74. doi: 10.1093/cid/ciaa1249..
Keywords: COVID-19, Respiratory Conditions, Public Health, Infectious Diseases
Lee BY, Bartsch SM, Ferguson MC
The value of decreasing the duration of the infectious period of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.
Researchers developed a computational model of the U.S. simulating the spread of SARS-CoV-2 and the potential clinical and economic impact of reducing the infectious period duration. They reported that their study quantifies the potential effects of reducing the SARS-CoV-2 infectious period duration.
AHRQ-funded; HS023317.
Citation: Lee BY, Bartsch SM, Ferguson MC .
The value of decreasing the duration of the infectious period of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.
PLoS Comput Biol 2021 Jan;17(1):e1008470. doi: 10.1371/journal.pcbi.1008470..
Keywords: COVID-19, Respiratory Conditions, Public Health, Prevention, Infectious Diseases
Chou R, Dana T, Jungbauer R
Masks for prevention of respiratory virus infections, including SARS-CoV-2, in health care and community settings : a living rapid review.
This study examined the effectiveness of N95, surgical, and cloth masks in community and health care settings for preventing respiratory virus infections, including coronavirus. The effects of reuse or extended use of N95 masks was also studied. The authors used multiple electronic databases, including the World Health Organization COVID-19 database and medRxiv preprint server (2003 through 2020), and reference lists. Randomized trials of masks and risks for respiratory virus infection were included. The studies were abstracted and methodological limitations were assessed by one reviewer, with a second reviewer providing verification. Thirty-nine studies with 33,867 participants were included. No studies were found that evaluated reuse or extended use of N95 masks. The studies showed that COVID-19 and MERS probably decreased with use versus nonuse and possibly decreased with N95 versus surgical mask use. Random trials in community settings found not much difference between N95 versus surgical masks. The studies’ findings were not definitive.
AHRQ-funded; 290201500009I.
Citation: Chou R, Dana T, Jungbauer R .
Masks for prevention of respiratory virus infections, including SARS-CoV-2, in health care and community settings : a living rapid review.
Ann Intern Med 2020 Oct 6;173(7):542-55. doi: 10.7326/m20-3213..
Keywords: COVID-19, Respiratory Conditions, Infectious Diseases, Prevention, Public Health, Evidence-Based Practice
Bartsch SM, Mitgang EA, Geller G
What if the influenza vaccine did not offer such variable protection?
This study looked at the impact of reducing the variability in responses to the influenza vaccine across the population. Protection from the vaccine can vary significantly from person to person due to differences in immune systems, body types, and other factors. The authors compared the projected cases, direct medical costs, and productivity losses at the 30%, 50%, and 70% efficacy rates.
AHRQ-funded; HS023317.
Citation: Bartsch SM, Mitgang EA, Geller G .
What if the influenza vaccine did not offer such variable protection?
J Infect Dis 2020 Sep 1;222(7):1138-44. doi: 10.1093/infdis/jiaa240..
Keywords: Influenza, Vaccination, Respiratory Conditions, Public Health
Shaker MS, Oppenheimer J, Grayson M
COVID-19: pandemic contingency planning for the allergy and immunology clinic.
In the event of a global infectious pandemic, drastic measures may be needed that limit or require adjustment of ambulatory allergy services. However, no rationale for how to prioritize service shut down and patient care exists. A consensus-based ad-hoc expert panel of allergy/immunology specialists from the United States and Canada developed a service and patient prioritization schematic to temporarily triage allergy/immunology services. This paper describes the process, recommendations and feedback.
AHRQ-funded; HS024599.
Citation: Shaker MS, Oppenheimer J, Grayson M .
COVID-19: pandemic contingency planning for the allergy and immunology clinic.
J Allergy Clin Immunol Pract 2020 May;8(5):1477-88.e5. doi: 10.1016/j.jaip.2020.03.012..
Keywords: COVID-19, Respiratory Conditions, Emergency Preparedness, Public Health, Healthcare Delivery, Ambulatory Care and Surgery, Infectious Diseases
Ji W, McKenna C, Ochoa A
Development and assessment of objective surveillance definitions for nonventilator hospital-acquired pneumonia.
The authors sought to propose and assess potentially objective, efficient, and reproducible surveillance definitions for non-ventilator hospital-acquired pneumonia (NV-HAP) using routine clinical data stored in electronic health record systems. They found that objective surveillance for NV-HAP using electronically computable definitions that incorporate common clinical criteria is feasible and generates incidence, mortality, and adjusted odds ratios for hospital mortality similar to estimates from manual surveillance. They concluded that these definitions have the potential to facilitate widespread, automated surveillance for NV-HAP and thus inform the development and evaluation of prevention programs.
AHRQ-funded; HS025008.
Citation: Ji W, McKenna C, Ochoa A .
Development and assessment of objective surveillance definitions for nonventilator hospital-acquired pneumonia.
JAMA Netw Open 2019 Oct 2;2(10):e1913674. doi: 10.1001/jamanetworkopen.2019.13674..
Keywords: Healthcare-Associated Infections (HAIs), Hospitals, Respiratory Conditions, Public Health, Electronic Health Records (EHRs), Health Information Technology (HIT)
Bhattacharyya S, Gesteland PH, Korgenski K
Cross-immunity between strains explains the dynamical pattern of paramyxoviruses.
The researchers used long-term incidence data on Respiratory Syncytial Virus (RSV), three serotypes of Human Parainfluenza Virus (HPIV), and Human Metapneumovirus to study mathematical models of different mechanisms of pathogen interaction. Their results showed a strong signal of cross-protection from RSV in controlling the timing and magnitude of HPIV outbreaks, and a stronger interaction with more closely related serotypes.
AHRQ-funded; HS018538.
Citation: Bhattacharyya S, Gesteland PH, Korgenski K .
Cross-immunity between strains explains the dynamical pattern of paramyxoviruses.
Proc Natl Acad Sci U S A 2015 Oct 27;112(43):13396-400. doi: 10.1073/pnas.1516698112..
Keywords: Data, Public Health, Respiratory Conditions