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- Asthma (1)
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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.
Results
1 to 9 of 9 Research Studies DisplayedRao S, Armistead I, Tyler A
Respiratory syncytial virus, influenza, and coronavirus disease 2019 hospitalizations in children in Colorado during the 2021-2022 respiratory virus season.
This study compared demographic characteristics, clinical features, and outcomes of children hospitalized with respiratory syncytial virus (RSV), influenza, or severe acute respiratory syndrome coronavirus 2 during their cocirculation 2021-2022 respiratory virus season. The authors conducted a retrospective cohort study using Colorado's hospital respiratory surveillance data comparing coronavirus disease 2019 (COVID-19)-, influenza-, and RSV-hospitalized cases < 18 years of age admitted and undergoing standardized molecular testing between October 1, 2021, and April 30, 2022. The cohort consisted of 847 hospitalized cases, of which 490 (57.9%) were RSV associated, 306 (36.1%) were COVID-19 associated, and 51 (6%) were influenza associated. Most RSV cases were children less than 4 years of age (92.9%), whereas influenza hospitalizations were observed in older children. RSV cases were more likely to require oxygen support higher than nasal cannula compared with COVID-19 and influenza cases, although COVID-19 cases were more likely to require invasive mechanical ventilation than influenza and RSV cases. Compared with children with COVID-19, the risk of intensive care unit admission was highest among children with influenza, whereas the risk of pneumonia, bronchiolitis, longer hospital length of stay, and need for oxygen were more likely among children with RSV.
AHRQ-funded; HS026512.
Citation: Rao S, Armistead I, Tyler A .
Respiratory syncytial virus, influenza, and coronavirus disease 2019 hospitalizations in children in Colorado during the 2021-2022 respiratory virus season.
J Pediatr 2023 Sep; 260:113491. doi: 10.1016/j.jpeds.2023.113491..
Keywords: Children/Adolescents, COVID-19, Respiratory Conditions, Influenza, Hospitalization, Infectious Diseases
Encinosa W, Figueroa J, Elias Y
AHRQ Author: Encinosa W
Severity of hospitalizations from SARS-CoV-2 vs influenza and respiratory syncytial virus infection in children aged 5 to 11 years in 11 US states.
By the time emergency use authorization had been granted for the Pfizer-BioNTech vaccine in October 2021 in children aged 5 to 11 years, there had been 1.8 million diagnoses of SARS-CoV-2 infection, 8,000 hospitalizations, and 143 deaths in that age group. Very little has been reported on the severity of those hospitalizations relative to the influenza virus and respiratory syncytial virus (RSV) which are the most common childhood viruses. The purpose of this study was to compare hospitalizations of children aged 5 to 11 for SARS-CoV-2 infection and multisystem inflammatory system in children (MIS-C, a sequela of COVID-19 disease) with the hospitalizations of children aged 5 to 11 years who were infected with influenza and RSV. The researchers utilized inpatient data from the Agency for Healthcare Research and Quality (AHRQ) Healthcare Cost and Utilization Project from the first 11 states with complete first-quarter data as of October 2021, representing 24% of the US population of children aged 5 to 11 years. The researchers examined 46 complications in 7 body systems, total care costs and charges, and data on race and ethnicity. The resulting cross-sectional study included patient data from a total of 2,269 children. The study found that COVID-19 hospitalizations occurred at the rate of 10.8 per 100,000 children, while Influenza and RSV were rare during the first quarter of 2021 with 23 total hospital discharges combined. However, in 2017, which researchers also measured for data on influenza and RSV, influenza and RSV had 17.0 and 6.2 hospitalizations per 100,000 children, respectively. Inpatient death for all viruses was rare. MIS-C had the highest rates of cardiovascular, hematologic, and gastrointestinal complications. Children with RSV ha the highest rate of respiratory complications. Children with COVID-19 (without MISC-C) had the highest rate of neurologic complications, whereas children with influenza had the highest rate of muscoskeletal complications. Children with MIS-C had the longest median length of stay at a median cost of $23,585 per stay compared to children with influenza with a median length of stay of 2 days and a cost of $5,200.
AHRQ-authored.
Citation: Encinosa W, Figueroa J, Elias Y .
Severity of hospitalizations from SARS-CoV-2 vs influenza and respiratory syncytial virus infection in children aged 5 to 11 years in 11 US states.
JAMA Pediatr 2022 May;176(5):520-22. doi: 10.1001/jamapediatrics.2021.6566..
Keywords: Healthcare Cost and Utilization Project (HCUP), COVID-19, Children/Adolescents, Hospitalization, Influenza, Respiratory Conditions
Butler AM, Layton JB, Dharnidharka VR
Comparative effectiveness of high-dose versus standard-dose influenza vaccine among patients receiving maintenance hemodialysis.
This study compared outcomes of routine dialysis patients who received either the standard dose vaccine (SDV) for influenza or a high-dose vaccine (HDV). Out of 22,215 influenza patient-seasons among adults 65 years and older, 97.4% received SDV and 2.6% received HDV. There did not seem to be any additional protection provided by the HDV for all-cause mortality or influenza-related outcomes.
AHRQ-funded; HS019455.
Citation: Butler AM, Layton JB, Dharnidharka VR .
Comparative effectiveness of high-dose versus standard-dose influenza vaccine among patients receiving maintenance hemodialysis.
Am J Kidney Dis 2020 Jan;75(1):72-83. doi: 10.1053/j.ajkd.2019.05.018..
Keywords: Vaccination, Influenza, Comparative Effectiveness, Dialysis, Kidney Disease and Health, Hospitalization, Outcomes
Goldstein E, Finelli L, O'Halloran A
AHRQ Author: Karaca Z, Steiner C
Hospitalizations associated with respiratory syncytial virus and influenza in children, including children diagnosed with asthma.
This study examined hospitalization rates in children associated with respiratory syncytial virus (RSV) and influenza, including children with asthma. HCUP hospitalization data and additional data to estimate RSV and influenza-associated hospitalization with a respiratory cause was analyzed in different subpopulations of US children between 2003 and 2010. Annual rates of RSV-associated hospitalization was highest in infants and young children, and declined rapidly with age. Influenza hospitalizations also were highest in young children and declined by age 12-17 years. Higher rates of RSV-related and influenza hospitalization in the youngest children with a prior diagnosis of asthma was also found.
AHRQ-authored.
Citation: Goldstein E, Finelli L, O'Halloran A .
Hospitalizations associated with respiratory syncytial virus and influenza in children, including children diagnosed with asthma.
Epidemiology 2019 Nov;30(6):918-26. doi: 10.1097/ede.0000000000001092..
Keywords: Healthcare Cost and Utilization Project (HCUP), Children/Adolescents, Asthma, Influenza, Respiratory Conditions, Hospitalization, Chronic Conditions
McConeghy KW, Lee Y, Zullo AR
Influenza illness and hip fracture hospitalizations in nursing home residents: are they related?
In this retrospective cohort study, the investigators evaluated the association between influenza and hip fracture hospitalizations in long-stay (LS) nursing home (NH) residents. The study authors found that influenza like illness (ILI) hospitalizations were associated with a 13% average increase in hip fracture hospitalization risk. In a given NH week, an increase in the number ILI hospitalizations from none to two was associated with an approximate one percentage point increase in hip fracture hospitalization risk.
AHRQ-funded; HS022998.
Citation: McConeghy KW, Lee Y, Zullo AR .
Influenza illness and hip fracture hospitalizations in nursing home residents: are they related?
J Gerontol A Biol Sci Med Sci 2018 Nov 10;73(12):1638-42. doi: 10.1093/gerona/glx200..
Keywords: Elderly, Injuries and Wounds, Hospitalization, Influenza, Long-Term Care, Nursing Homes
Lee GE, Fisher BT, Xiao R
Burden of influenza-related hospitalizations and attributable mortality in pediatric acute lymphoblastic leukemia.
The researchers investigated the rate of influenza hospitalizations and attributable mortality in children with cancer. They concluded that the burden of influenza-related hospitalizations in children with acute lymphoblastic leukemia is high and associated with significantly increased resource utilization and attributable mortality.
AHRQ-funded; HS020939.
Citation: Lee GE, Fisher BT, Xiao R .
Burden of influenza-related hospitalizations and attributable mortality in pediatric acute lymphoblastic leukemia.
J Pediatric Infect Dis Soc 2015 Dec;4(4):290-6. doi: 10.1093/jpids/piu066..
Keywords: Children/Adolescents, Hospitalization, Influenza, Mortality, Children/Adolescents
Pop-Vicas A, Rahman M, Gozalo PL
Estimating the effect of influenza vaccination on nursing home residents' morbidity and mortality.
This study estimated the effect of influenza vaccination on hospitalization and mortality in nursing home (NH) residents. It found that the association between vaccine match and reduction in overall mortality and pneumonia and influenza hospitalizations was strongest for A/H3N2, the influenza strain typically responsible for the most-severe influenza cases.
AHRQ-funded; HS018462.
Citation: Pop-Vicas A, Rahman M, Gozalo PL .
Estimating the effect of influenza vaccination on nursing home residents' morbidity and mortality.
J Am Geriatr Soc 2015 Sep;63(9):1798-804. doi: 10.1111/jgs.13617..
Keywords: Influenza, Nursing Homes, Vaccination, Hospitalization
Patel RB, Mathur MB, Gould M
Demographic and clinical predictors of mortality from highly pathogenic avian influenza A (H5N1) virus infection: CART analysis of international cases.
The researchers for this international study sought to model individuals at highest risk of mortality from HPAI N5N1 virus infection in order to inform preventive and therapeutic interventions. They found that age, health expenditure, delay from symptom onset to hospitalization and country are significant predictors of mortality.
AHRQ-funded; HS019816
Citation: Patel RB, Mathur MB, Gould M .
Demographic and clinical predictors of mortality from highly pathogenic avian influenza A (H5N1) virus infection: CART analysis of international cases.
PLoS One. 2014 Mar 25;9(3):e91630. doi: 10.1371/journal.pone.0091630..
Keywords: Influenza, Mortality, Critical Care, Hospitalization, Risk
Braithwaite S, Friedman B, Mutter R
AHRQ Author: Friedman B, Mutter R
Microsimulation of financial impact of demand surge on hospitals: the H1N1 influenza pandemic of fall 2009.
Microsimulation was used to assess the financial impact on hospitals of a surge in influenza admissions in advance of the H1N1 pandemic in the fall of 2009 with the goal of estimating net income and losses of a response of filling unused hospital bed capacity proportionately and postponing elective admissions. They concluded that aggregate and distributional results did not suggest that a policy of promising additional financial compensation to hospitals in anticipation of the surge in flu cases was necessary.
AHRQ-authored.
Citation: Braithwaite S, Friedman B, Mutter R .
Microsimulation of financial impact of demand surge on hospitals: the H1N1 influenza pandemic of fall 2009.
Health Serv Res 2013 Apr;48(2 Pt 2):735-52. doi: 10.1111/1475-6773.12041.
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Keywords: Healthcare Costs, Healthcare Cost and Utilization Project (HCUP), Hospitalization, Influenza