2022
Trends in disparities in COVID hospitalizations among community‐dwelling residents of two counties in Connecticut, before and after vaccine introduction, March 2020–September 2021
McWilliams C, Bothwell L, Yousey‐Hindes K, Hadler J. Trends in disparities in COVID hospitalizations among community‐dwelling residents of two counties in Connecticut, before and after vaccine introduction, March 2020–September 2021. Influenza And Other Respiratory Viruses 2022, 17: e13082. PMID: 36509459, PMCID: PMC9835416, DOI: 10.1111/irv.13082.Peer-Reviewed Original ResearchConceptsCOVID-19 hospitalizationNon-Hispanic blacksGeocoded residential addressesAge-adjusted incidenceNon-Hispanic whitesHispanic/LatinxVaccination ratesLaboratory-confirmed COVID-19Residential addressesSocioeconomic statusSurveillance Network databaseCommunity-dwelling residentsNon-institutionalized personsIntroduction of vaccinesLow socioeconomic statusCensus tract measuresRace/ethnicityLower SES groupsVaccine registryVaccine introductionVaccination levelsHospitalizationVaccine rolloutDelta wavesSES disparitiesComparison of Influenza and Coronavirus Disease 2019–Associated Hospitalizations Among Children Younger Than 18 Years Old in the United States: FluSurv-NET (October–April 2017–2021) and COVID-NET (October 2020–September 2021)
Delahoy MJ, Ujamaa D, Taylor CA, Cummings C, Anglin O, Holstein R, Milucky J, O’Halloran A, Patel K, Pham H, Whitaker M, Reingold A, Chai SJ, Alden NB, Kawasaki B, Meek J, Yousey-Hindes K, Anderson EJ, Openo KP, Weigel A, Teno K, Reeg L, Leegwater L, Lynfield R, McMahon M, Ropp S, Rudin D, Muse A, Spina N, Bennett NM, Popham K, Billing LM, Shiltz E, Sutton M, Thomas A, Schaffner W, Talbot HK, Crossland MT, McCaffrey K, Hall AJ, Burns E, McMorrow M, Reed C, Havers FP, Garg S. Comparison of Influenza and Coronavirus Disease 2019–Associated Hospitalizations Among Children Younger Than 18 Years Old in the United States: FluSurv-NET (October–April 2017–2021) and COVID-NET (October 2020–September 2021). Clinical Infectious Diseases 2022, 76: e450-e459. PMID: 35594564, PMCID: PMC9129156, DOI: 10.1093/cid/ciac388.Peer-Reviewed Original ResearchConceptsCOVID-19-associated hospitalizationInfluenza-associated hospitalization ratesHospitalization ratesIntensive care unit admissionPopulation-based surveillance systemCOVID-19COVID-19 pandemicCare unit admissionInfluenza-associated hospitalizationsComparison of influenzaSARS-CoV-2FluSurv-NETICU admissionUnit admissionHospital outcomesInfluenza seasonRespiratory virusesPediatric deathsPediatric hospitalizationsRespiratory illnessSevere outcomesOngoing COVID-19 pandemicAdolescents 12HospitalizationChildren 5Epidemiology, Clinical Characteristics, and Outcomes of Influenza-Associated Hospitalizations in US Children Over 9 Seasons Following the 2009 H1N1 Pandemic
Kamidani S, Garg S, Rolfes MA, Campbell AP, Cummings CN, Haston JC, Openo KP, Fawcett E, Chai SJ, Herlihy R, Yousey-Hindes K, Monroe ML, Kim S, Lynfield R, Smelser C, Muse A, Felsen CB, Billing L, Thomas A, Talbot HK, Schaffner W, Risk I, Anderson EJ. Epidemiology, Clinical Characteristics, and Outcomes of Influenza-Associated Hospitalizations in US Children Over 9 Seasons Following the 2009 H1N1 Pandemic. Clinical Infectious Diseases 2022, 75: 1930-1939. PMID: 35438769, DOI: 10.1093/cid/ciac296.Peer-Reviewed Original ResearchConceptsInfluenza Hospitalization Surveillance NetworkHospital mortality rateMechanical ventilationMortality rateIntensive care unit admissionRecent population-based dataCare unit admissionInfluenza vaccination ratesLaboratory-confirmed influenzaInfluenza-associated hospitalizationsMultivariable logistic regressionPopulation-based dataHospitalization incidence ratesMonths of ageUnit admissionAntiviral treatmentVaccination ratesRisk factorsIncidence rateHigher oddsUS childrenHospitalizationDisease controlLogistic regressionPneumonia
2019
LB19. Patterns of Influenza A Hospitalizations by Subtype and Age in the United States, FluSurv-NET, 2018–2019
Garg S, O’Halloran A, O’Halloran A, Cummings C, Cummings C, Holstein R, Kniss K, Anderson E, Anderson E, Bennett N, Bennett N, Billing L, Billing L, Herlihy R, Hill M, Irizarry L, Irizarry L, Kim S, Kim S, Kirley P, Lynfield R, Lynfield R, Monroe M, Monroe M, Spina N, Talbot K, Talbot K, Thomas A, Thomas A, Yousey-Hindes K, Budd A, Brammer L, Reed C, Reed C. LB19. Patterns of Influenza A Hospitalizations by Subtype and Age in the United States, FluSurv-NET, 2018–2019. Open Forum Infectious Diseases 2019, 6: s1001-s1002. PMCID: PMC6810298, DOI: 10.1093/ofid/ofz415.2502.Peer-Reviewed Original ResearchProportion of casesAge groupsFluSurv-NETHospitalization ratesVirologic surveillanceInfluenza Hospitalization Surveillance NetworkUS Public Health LaboratoriesCumulative hospitalization rateDistribution of influenzaInfluenza hospitalization ratesLaboratory-confirmed influenzaYears of agePublic health laboratoriesInfluenza resultsH1N1pdm09 virusInfluenza vaccinationHospital admissionInfluenza seasonAge-related differencesInfluenza ASubtype distributionHospitalizationSanofi PasteurUnknown subtypeH1 virusesAge-Related Differences in Hospitalization Rates, Clinical Presentation, and Outcomes Among Older Adults Hospitalized With Influenza—U.S. Influenza Hospitalization Surveillance Network (FluSurv-NET)
Czaja CA, Miller L, Alden N, Wald HL, Cummings CN, Rolfes MA, Anderson EJ, Bennett NM, Billing LM, Chai SJ, Eckel S, Mansmann R, McMahon M, Monroe ML, Muse A, Risk I, Schaffner W, Thomas AR, Yousey-Hindes K, Garg S, Herlihy RK. Age-Related Differences in Hospitalization Rates, Clinical Presentation, and Outcomes Among Older Adults Hospitalized With Influenza—U.S. Influenza Hospitalization Surveillance Network (FluSurv-NET). Open Forum Infectious Diseases 2019, 6: ofz225. PMID: 31363771, PMCID: PMC6602897, DOI: 10.1093/ofid/ofz225.Peer-Reviewed Original ResearchLaboratory-confirmed influenzaInfluenza hospitalizationsAge-related differencesHospitalization ratesInfluenza seasonClinical presentationInfluenza Hospitalization Surveillance NetworkInfluenza-associated hospitalization ratesOlder adultsHospital deathHospitalized patientsMedical historyHigher oddsAge strataPatientsAge groupsHospitalizationTreatment effortsAdultsPopulation ratesSurveillance networkInfluenzaPresentationStepwise increaseAgeEffects of Influenza Vaccination in the United States During the 2017–2018 Influenza Season
Rolfes MA, Flannery B, Chung JR, O’Halloran A, Garg S, Belongia EA, Gaglani M, Zimmerman RK, Jackson ML, Monto AS, Alden NB, Anderson E, Bennett NM, Billing L, Eckel S, Kirley PD, Lynfield R, Monroe ML, Spencer M, Spina N, Talbot HK, Thomas A, Torres SM, Yousey-Hindes K, Singleton JA, Patel M, Reed C, Fry AM, McLean H, King J, Nowalk M, Balasubramani G, Bear T, Hickey R, Williams J, Reis E, Moehling K, Eng H, Jackson L, Smith M, Raiyani C, Clipper L, Murthy K, Chen W, Reis M, Petrie J, Malosh R, McSpadden E, Segaloff H, Cheng C, Truscon R, Johnson E, Lamerato L, Rosenblum B, Ford S, Johnson M, Raviotta J, Sax T, Steele J, Susick M, Chabra R, Garofolo E, Iozzi P, Kevish B, Middleton D, Urbanski L, Ponder T, Crumbaker T, Iosefo I, Sleeth P, Gandy V, Bounds K, Kylberg M, Rao A, Fader R, Walker K, Volz M, Ray J, Price D, Thomas J, Wehbe-Janek H, Beeram M, Boyd J, Walkowiak J, Probe R, Couchman G, Motakef S, Arroliga A, Kaniclides A, Bouldin E, Baker C, Berke K, Smith M, Rajesh N, Alleman E, Bauer S, Groesbeck M, Brundidge K, Hafeez N, Jackson J, Anastasia I, Kadoo G, Petnic S, Ryan A, Maslar A, Meek J, Chen R, Stephens S, Thomas S, Segler S, Openo K, Fawcett E, Farley M, Martin A, Ryan P, Sunkel R, Lutich T, Perlmutter R, Grace B, Blood T, Zerrlaut C, McMahon M, Strain A, Christensen J, Angeles K, Butler L, Khanlian S, Mansmann R, McMullen C, Pradhan E, Manzi K, Felsen C, Gaitan M, Long K, Fisher N, Hawley E, O’Shaughnessy R, Scott M, Crawford C, Schaffner W, Markus T, Leib K, Dyer K, Santibanez T, Zhai Y, Lu P, Srivastav A, Hung M. Effects of Influenza Vaccination in the United States During the 2017–2018 Influenza Season. Clinical Infectious Diseases 2019, 69: 1845-1853. PMID: 30715278, PMCID: PMC7188082, DOI: 10.1093/cid/ciz075.Peer-Reviewed Original ResearchConceptsInfluenza-associated illnessVaccine effectivenessInfluenza vaccinationInfluenza seasonMedical visitsCurrent influenza vaccinationInfluenza-associated outcomesInfluenza vaccine coverageInfluenza vaccine effectivenessLaboratory-confirmed influenzaTest-negative designInfluenza virus infectionAge-specific estimatesInfluenza B.Vaccine coverageDisease burdenVirus infectionSubstantial burdenAmbulatory settingVaccinationHospitalizationImproved vaccinesInfluenzaIllnessVisits
2017
Social determinants of influenza hospitalization in the United States
Chandrasekhar R, Sloan C, Mitchel E, Ndi D, Alden N, Thomas A, Bennett NM, Kirley PD, Hill M, Anderson EJ, Lynfield R, Yousey‐Hindes K, Bargsten M, Zansky SM, Lung K, Schroeder M, Monroe M, Eckel S, Markus TM, Cummings CN, Garg S, Schaffner W, Lindegren ML. Social determinants of influenza hospitalization in the United States. Influenza And Other Respiratory Viruses 2017, 11: 479-488. PMID: 28872776, PMCID: PMC5720587, DOI: 10.1111/irv.12483.Peer-Reviewed Original ResearchConceptsAdjusted odds ratioInfluenza hospitalizationsLaboratory-confirmed influenza-associated hospitalizationsHigher adjusted odds ratioPopulation-based surveillance systemInfluenza-associated hospitalizationsInfluenza seasonSubstantial morbidityVs 5Odds ratioHospitalizationHousehold crowdingSocial determinantsTractIndividual factorsMultilevel regression modelsSocioeconomic determinantsAfrican AmericansSurveillance systemRegression modelsUnited StatesHispanicsIndividual-level determinantsDeterminantsMorbidity
2016
Respiratory Viral Testing and Influenza Antiviral Prescriptions During Hospitalization for Acute Respiratory Illnesses
Rolfes MA, Yousey-Hindes KM, Meek JI, Fry AM, Chaves SS. Respiratory Viral Testing and Influenza Antiviral Prescriptions During Hospitalization for Acute Respiratory Illnesses. Open Forum Infectious Diseases 2016, 3: ofv216. PMID: 26885545, PMCID: PMC4751920, DOI: 10.1093/ofid/ofv216.Peer-Reviewed Original Research
2014
Influenza‐related hospitalization of adults associated with low census tract socioeconomic status and female sex in New Haven County, Connecticut, 2007‐2011
Tam K, Yousey‐Hindes K, Hadler JL. Influenza‐related hospitalization of adults associated with low census tract socioeconomic status and female sex in New Haven County, Connecticut, 2007‐2011. Influenza And Other Respiratory Viruses 2014, 8: 274-281. PMID: 24382111, PMCID: PMC4181475, DOI: 10.1111/irv.12231.Peer-Reviewed Original ResearchConceptsAge-adjusted incidenceInfluenza seasonNeighborhood socioeconomic statusSocioeconomic statusFemale sexVaccination effortsCensus tract socioeconomic statusFuture influenza vaccination effortsActive population-based surveillanceLower neighborhood socioeconomic statusSES measuresHospitalizations of adultsInfluenza-related hospitalizationsPopulation-based surveillanceInfluenza hospitalizationsInfluenza infectionCostly complicationRelative riskFemale incidenceHigh riskHigh incidenceHospitalizationNew Haven CountyResidential addressesAge groups
2013
Hospital-onset influenza hospitalizations—United States, 2010-2011
Jhung MA, D'Mello T, Pérez A, Aragon D, Bennett NM, Cooper T, Farley MM, Fowler B, Grube SM, Hancock EB, Lynfield R, Morin C, Reingold A, Ryan P, Schaffner W, Sharangpani R, Tengelsen L, Thomas A, Thurston D, Yousey-Hindes K, Zansky S, Finelli L, Chaves SS. Hospital-onset influenza hospitalizations—United States, 2010-2011. American Journal Of Infection Control 2013, 42: 7-11. PMID: 24183534, DOI: 10.1016/j.ajic.2013.06.018.Peer-Reviewed Original ResearchConceptsIntensive care unitChronic medical conditionsCare unitHO casesMedical conditionsLaboratory confirmationInfluenza Hospitalization Surveillance NetworkCommunity-onset casesInfluenza-related hospitalizationsPopulation-based surveillanceInfluenza hospitalizationsHospital admissionInfluenza seasonClinical outcomesMedian lengthInfluenza diagnosisSeasonal influenzaOverall epidemiologyHospitalizationPatientsInfluenzaAdmissionStaySurveillance networkGreater proportionEffect of the 2009 Influenza A(H1N1) Pandemic on Invasive Pneumococcal Pneumonia
Fleming-Dutra KE, Taylor T, Link-Gelles R, Garg S, Jhung MA, Finelli L, Jain S, Shay D, Chaves SS, Baumbach J, Hancock EB, Beall B, Bennett N, Zansky S, Petit S, Yousey-Hindes K, Farley MM, Gershman K, Harrison LH, Ryan P, Lexau C, Lynfield R, Reingold A, Schaffner W, Thomas A, Moore MR. Effect of the 2009 Influenza A(H1N1) Pandemic on Invasive Pneumococcal Pneumonia. The Journal Of Infectious Diseases 2013, 207: 1135-1143. PMID: 23303809, DOI: 10.1093/infdis/jit008.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedChildChild, PreschoolConfidence IntervalsDatabases, FactualFemaleHospitalizationHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanMaleMiddle AgedOdds RatioPandemicsPneumonia, PneumococcalPoisson DistributionPopulation SurveillanceRisk FactorsSeasonsSeverity of Illness IndexStreptococcus pneumoniaeUnited StatesYoung Adult
2012
Increase in Rates of Hospitalization Due to Laboratory-Confirmed Influenza Among Children and Adults During the 2009–10 Influenza Pandemic
Cox CM, D'Mello T, Perez A, Reingold A, Gershman K, Yousey-Hindes K, Arnold KE, Farley MM, Ryan P, Lynfield R, Morin C, Baumbach J, Hancock EB, Zansky S, Bennett NM, Thomas A, Schaffner W, Finelli L, Network F. Increase in Rates of Hospitalization Due to Laboratory-Confirmed Influenza Among Children and Adults During the 2009–10 Influenza Pandemic. The Journal Of Infectious Diseases 2012, 206: 1350-1358. PMID: 23002448, DOI: 10.1093/infdis/jis517.Peer-Reviewed Original ResearchConceptsLaboratory-confirmed influenzaPrevious influenza seasonRate of hospitalizationInfluenza seasonEmerging Infections Program NetworkInfections Program NetworkPopulation-based surveillancePandemic of influenzaAdult age groupsUS Census Bureau dataMean rateH1N1 infectionHospitalization DueHospitalization ratesIncidence rateInfluenza pandemicAge groupsHospitalizationInfluenzaMonthsCensus Bureau dataSurveillanceAdultsEpisodesChildrenInfluenza-associated Hospitalizations by Industry, 2009–10 Influenza Season, United States - Volume 18, Number 4—April 2012 - Emerging Infectious Diseases journal - CDC
Luckhaupt SE, Sweeney MH, Funk R, Calvert GM, Nowell M, D'Mello T, Reingold A, Meek J, Yousey-Hindes K, Arnold KE, Ryan P, Lynfield R, Morin C, Baumbach J, Zansky S, Bennett NM, Thomas A, Schaffner W, Jones T. Influenza-associated Hospitalizations by Industry, 2009–10 Influenza Season, United States - Volume 18, Number 4—April 2012 - Emerging Infectious Diseases journal - CDC. Emerging Infectious Diseases 2012, 18: 556-562. PMID: 22469504, PMCID: PMC3309704, DOI: 10.3201/eid1804.110337.Peer-Reviewed Original Research
2011
Neighborhood Socioeconomic Status and Influenza Hospitalizations Among Children: New Haven County, Connecticut, 2003–2010
Yousey-Hindes KM, Hadler JL. Neighborhood Socioeconomic Status and Influenza Hospitalizations Among Children: New Haven County, Connecticut, 2003–2010. American Journal Of Public Health 2011, 101: 1785-1789. PMID: 21778498, PMCID: PMC3154248, DOI: 10.2105/ajph.2011.300224.Peer-Reviewed Original ResearchConceptsInfluenza-associated hospitalizationsPublic Health Disparities Geocoding ProjectNew Haven CountySurveillance dataMean annual incidenceIndividual case characteristicsAge 17 yearsNeighborhood socioeconomic statusInfluenza hospitalizationsInfluenza vaccinationInfluenza seasonAnnual incidenceHospitalization incidenceHospitalizationSocioeconomic status measuresStatus measuresSocioeconomic statusSES dataIncidenceSES measuresOngoing monitoringSES variablesChildrenTractCensus tracts