2025
How well do disease-specific studies and WHO-CHOICE cost estimates align? Example of estimating cost per episode of diarrhoea and respiratory syncytial virus in 128 low-income and middle-income countries
Li X, Bilcke J, Asare E, Wenger C, Kwon J, Bont L, Beutels P, Pitzer V. How well do disease-specific studies and WHO-CHOICE cost estimates align? Example of estimating cost per episode of diarrhoea and respiratory syncytial virus in 128 low-income and middle-income countries. BMJ Global Health 2025, 10: e016784. PMID: 40850784, PMCID: PMC12382583, DOI: 10.1136/bmjgh-2024-016784.Peer-Reviewed Original ResearchConceptsRespiratory syncytial virusRSV-related diseaseWHO-CHOICE estimatesEpisodes of diarrheaLower middle-incomeWHO-CHOICELow-incomeUpper middle-incomeSyncytial virusRSV studiesInpatient costsMiddle-incomeDiarrhoeal diseaseEconomic evaluationCost studiesMiddle-income countriesDisease-specific diagnosisRSV-specificDisease-specific costsCost-effectiveness studiesDisease-specific studiesOutpatient costsEmpirical studiesDiarrheaCountry-specific dataDrought, Extreme Heat, and Intimate Partner Violence in Low- and Middle-Income Countries
Wang P, Chu L, Ban J, Asare E, Sivakami M, Henao A, Chimoyi L, Sullivan T, Chen K. Drought, Extreme Heat, and Intimate Partner Violence in Low- and Middle-Income Countries. JAMA Network Open 2025, 8: e2527818. PMID: 40833696, PMCID: PMC12368687, DOI: 10.1001/jamanetworkopen.2025.27818.Peer-Reviewed Original ResearchConceptsIntimate partner violenceIntimate partner violence riskPartner violenceHigher risk of intimate partner violenceRisk of intimate partner violenceSexual intimate partner violenceMiddle-income countriesViolation of human rightsSub-Saharan AfricaCross-sectional studySexual violenceDomestic violenceEmotional violencePhysical violenceViolenceLatin AmericaHigh riskHuman rightsMiddle-incomeSoutheast AsiaCountriesWomenEvaluating the kidney disease progression using a comprehensive patient profiling algorithm: A hybrid clustering approach
Al-Mamun M, Jeun K, Brothers T, Asare E, Shawwa K, Ahmed I. Evaluating the kidney disease progression using a comprehensive patient profiling algorithm: A hybrid clustering approach. PLOS ONE 2025, 20: e0310749. PMID: 40644387, PMCID: PMC12250582, DOI: 10.1371/journal.pone.0310749.Peer-Reviewed Original ResearchConceptsAcute kidney injuryChronic kidney diseaseHA-AKINo-AKI groupCA-AKINo-AKIRisk factorsElectronic health record dataHealth record dataReduce healthcare expendituresHistory of ischemic heart diseaseAcute kidney injury groupAKI to CKD progressionChronic kidney disease patientsOpiate analgesic useAcute kidney injury cohortChronic kidney disease progressionAcute kidney injury phenotypesNephrology follow-upKidney disease progressionHealthcare expendituresEarly risk factorsIschemic heart diseasePrevention strategiesRecord dataCost-effectiveness analysis of alternative infant and neonatal rotavirus vaccination schedules in Malawi
Wenger C, Asare E, Kwon J, Li X, Mwinjiwa E, Chinkhumba J, Jere K, Hungerford D, Cunliffe N, Paltiel A, Pitzer V. Cost-effectiveness analysis of alternative infant and neonatal rotavirus vaccination schedules in Malawi. PLOS Global Public Health 2025, 5: e0004341. PMID: 40209158, PMCID: PMC11984971, DOI: 10.1371/journal.pgph.0004341.Peer-Reviewed Original ResearchDose of RotarixNeonatal vaccinationThird doseDisability-adjusted life yearsRotavirus vaccination strategiesVaccination strategiesVaccination scheduleRV3-BB vaccineRotavirus vaccine scheduleModerate-to-severeCurrent rotavirus vaccinesProbabilistic sensitivity analysesRV3-BBPrevent rotavirusRotavirus casesRotavirus vaccineWTP thresholdAlternate infantsVaccine impactSevere diarrheaWeeks of ageRotarixVaccine effectivenessCost-effectiveness analysisCost-effectiveGlobal estimates of rotavirus vaccine efficacy and effectiveness: a rapid review and meta-regression analysis
Prunas O, Asare E, Sajewski E, Li Y, Pithawala Z, Weinberger D, Warren J, Armah G, Cunliffe N, Iturriza-Gómara M, Lopman B, Pitzer V. Global estimates of rotavirus vaccine efficacy and effectiveness: a rapid review and meta-regression analysis. EClinicalMedicine 2025, 81: 103122. PMID: 40115174, PMCID: PMC11925534, DOI: 10.1016/j.eclinm.2025.103122.Peer-Reviewed Original ResearchRotavirus-associated gastroenteritisRotavirus vaccine efficacyPredicting vaccine efficacyVaccine efficacyVaccine effectivenessVaccine performanceNational rotavirus immunization programImpact of rotavirus vaccinationRotavirus immunization programAffecting young childrenBill &Meta-regression analysisRandomized Controlled TrialsSystematic review of studiesEstimates of vaccine effectivenessRotavirus morbidityMelinda Gates FoundationRotavirus vaccineCohort studyLicensed vaccinesVaccine trialsDecreased efficacyControlled TrialsCase-controlLow-income settingsLong-term drought and risk of infant mortality in Africa: A cross-sectional study
Wang P, Rogne T, Warren J, Asare E, Akum R, Toure N, Ross J, Chen K. Long-term drought and risk of infant mortality in Africa: A cross-sectional study. PLOS Medicine 2025, 22: e1004516. PMID: 39888958, PMCID: PMC11785314, DOI: 10.1371/journal.pmed.1004516.Peer-Reviewed Original ResearchConceptsRisk of infant mortalityInfant mortality riskCross-sectional studyInfant mortalityMortality riskIncreased risk of infant mortalityIncreased risk of neonatal mortalityIncreased riskRisk of neonatal mortalityHealth Surveys ProgramPost-neonatal mortalityCox regression modelsStatistically significant associationChild healthGlobal burdenNon-casesNeonatal mortalitySignificant associationImpact mortalityNon-exposureSurvival periodRegression modelsPregnancyMortalityHealth
2024
Impact of dosing schedules on performance of rotavirus vaccines in Ghana
Asare E, Al-Mamun M, Armah G, Lopman B, Pitzer V. Impact of dosing schedules on performance of rotavirus vaccines in Ghana. Science Advances 2024, 10: eadn4176. PMID: 39661683, PMCID: PMC11633732, DOI: 10.1126/sciadv.adn4176.Peer-Reviewed Original ResearchConceptsVaccine dosing schedulesDosing scheduleDoses of RV1Median percentage reductionImprove vaccine performanceRotavirus vaccine impactThird doseRotavirus vaccineRotarix vaccineVaccine impactAdditional doseVaccine effectivenessVaccine performanceVaccineRotavirusRV1Percentage reductionChildrenRotarixImpact of rotavirus vaccination in Malawi from 2012 to 2022 compared to model predictions
Pitzer V, Ndeketa L, Asare E, Hungerford D, Lopman B, Jere K, Cunliffe N. Impact of rotavirus vaccination in Malawi from 2012 to 2022 compared to model predictions. Npj Vaccines 2024, 9: 227. PMID: 39562592, PMCID: PMC11576906, DOI: 10.1038/s41541-024-01008-6.Peer-Reviewed Original ResearchRotavirus-associated gastroenteritisRotavirus-negative childrenRotavirus-negative controlsImpact of rotavirus vaccinationVaccination coverageRotavirus vaccine impactAcute gastroenteritis casesNational immunization programPre-vaccination dataVaccine introductionRotavirus vaccineVaccine impactAcute gastroenteritisVaccine effectivenessGastroenteritis casesLow-income settingsImmunization programsVaccine
2023
Floods and Diarrhea Risk in Young Children in Low- and Middle-Income Countries
Wang P, Asare E, Pitzer V, Dubrow R, Chen K. Floods and Diarrhea Risk in Young Children in Low- and Middle-Income Countries. JAMA Pediatrics 2023, 177: 1206-1214. PMID: 37782513, PMCID: PMC10546297, DOI: 10.1001/jamapediatrics.2023.3964.Peer-Reviewed Original ResearchConceptsMiddle-income countriesDiarrhea riskOdds ratioMAIN OUTCOMEMixed-effects logistic regression modelRisk of diarrheaCross-sectional studyHigher odds ratioPrevalence of diarrheaLogistic regression modelsHealth survey programUnexposed childrenEffect modificationChild healthDiarrhea prevalenceSurvey clustersSignificant associationHygiene practicesFourth weekWeeksStrong associationRandom interceptYoung childrenChildrenDiarrheaClimate Drivers of Malaria Transmission Seasonality and Their Relative Importance in Sub‐Saharan Africa
Yamba E, Fink A, Badu K, Asare E, Tompkins A, Amekudzi L. Climate Drivers of Malaria Transmission Seasonality and Their Relative Importance in Sub‐Saharan Africa. GeoHealth 2023, 7: e2022gh000698. PMID: 36743738, PMCID: PMC9884660, DOI: 10.1029/2022gh000698.Peer-Reviewed Original Research
2022
Malaria metrics distribution under global warming: assessment of the VECTRI malaria model over Cameroon
Mbouna A, Tamoffo A, Asare E, Lenouo A, Tchawoua C. Malaria metrics distribution under global warming: assessment of the VECTRI malaria model over Cameroon. International Journal Of Biometeorology 2022, 67: 93-105. PMID: 36258135, DOI: 10.1007/s00484-022-02388-x.Peer-Reviewed Original ResearchAssociations between long-term drought and diarrhea among children under five in low- and middle-income countries
Wang P, Asare E, Pitzer VE, Dubrow R, Chen K. Associations between long-term drought and diarrhea among children under five in low- and middle-income countries. Nature Communications 2022, 13: 3661. PMID: 35773263, PMCID: PMC9247069, DOI: 10.1038/s41467-022-31291-7.Peer-Reviewed Original ResearchThe influence of demographic and meteorological factors on temporal patterns of rotavirus infection in Dhaka, Bangladesh
Asare EO, Al-Mamun MA, Sarmin M, Faruque ASG, Ahmed T, Pitzer VE. The influence of demographic and meteorological factors on temporal patterns of rotavirus infection in Dhaka, Bangladesh. Proceedings Of The Royal Society B 2022, 289: 20212727. PMID: 35673869, PMCID: PMC9174722, DOI: 10.1098/rspb.2021.2727.Peer-Reviewed Original ResearchCase fatality risk of diarrhoeal pathogens: a systematic review and meta-analysis
Asare EO, Hergott D, Seiler J, Morgan B, Archer H, Wiyeh AB, Guo B, Driver M, Giersing B, Hasso-Agopsowicz M, Lingappa J, Lopman BA, Pitzer VE. Case fatality risk of diarrhoeal pathogens: a systematic review and meta-analysis. International Journal Of Epidemiology 2022, 51: 1469-1480. PMID: 35578827, PMCID: PMC9557849, DOI: 10.1093/ije/dyac098.Peer-Reviewed Original ResearchConceptsCase fatality riskDiarrhoeal pathogensEnteropathogenic Escherichia coliSystematic reviewMultilevel mixed-effects logistic regression modelsMixed-effects logistic regression modelLower odds ratioOverall case fatality riskRandom-effects modelLogistic regression modelsDiarrhoea mortalityPrimary outcomeFatality riskOdds ratioMortality rateVaccine developmentAge groupsEnteric pathogensPotential predictorsBurden modelMore studiesReview criteriaConsiderable heterogeneityDifferent pathogensCFR estimatesSpatiotemporal Patterns of Diarrhea Incidence in Ghana and the Impact of Meteorological and Socio-Demographic Factors
Asare EO, Warren JL, Pitzer VE. Spatiotemporal Patterns of Diarrhea Incidence in Ghana and the Impact of Meteorological and Socio-Demographic Factors. Frontiers In Epidemiology 2022, 2: 871232. PMID: 35822109, PMCID: PMC9272077, DOI: 10.3389/fepid.2022.871232.Peer-Reviewed Original ResearchSocio-demographic factorsDiarrhea incidenceHealth insurance schemeSignificant public health problemOverall diarrhea incidencePublic health problemGhana Health ServiceHigh-risk districtsConsiderable financial burdenDirection of associationDiarrhea controlDiarrhoea patternsHealth problemsDiarrheaHealth servicesPotential associationSignificant associationDiarrhea dataIncidence
2020
Modeling of rotavirus transmission dynamics and impact of vaccination in Ghana
Asare EO, Al-Mamun MA, Armah GE, Lopman BA, Parashar UD, Binka F, Pitzer VE. Modeling of rotavirus transmission dynamics and impact of vaccination in Ghana. Vaccine 2020, 38: 4820-4828. PMID: 32513513, PMCID: PMC8290434, DOI: 10.1016/j.vaccine.2020.05.057.Peer-Reviewed Original ResearchConceptsVaccine response ratesRotavirus vaccine impactRotavirus incidenceVaccine impactMaternal immunityResponse rateVaccine effectivenessLow-income countriesTeaching hospitalHigh-income countriesKorle-Bu Teaching HospitalKomfo Anokye Teaching HospitalMonovalent rotavirus vaccineRotavirus transmission dynamicsLow vaccine effectivenessProportion of infantsImpact of vaccinationWar Memorial HospitalAge distributionRotavirus casesRotavirus vaccineVaccine introductionVaccine performanceMemorial HospitalRotavirus seasonality
2019
Modelled and observed mean and seasonal relationships between climate, population density and malaria indicators in Cameroon
Mbouna A, Tompkins A, Lenouo A, Asare E, Yamba E, Tchawoua C. Modelled and observed mean and seasonal relationships between climate, population density and malaria indicators in Cameroon. Malaria Journal 2019, 18: 359. PMID: 31707994, PMCID: PMC6842545, DOI: 10.1186/s12936-019-2991-8.Peer-Reviewed Original Research
2017
Assessing Climate Driven Malaria Variability in Ghana Using a Regional Scale Dynamical Model
Asare E, Amekudzi L. Assessing Climate Driven Malaria Variability in Ghana Using a Regional Scale Dynamical Model. Climate 2017, 5: 20. DOI: 10.3390/cli5010020.Peer-Reviewed Original ResearchHydrology schemeSpatio-temporal variabilityClimate variabilityRainfall datasetsRainfall peakRegional modelAgro-ecological zonesSynoptic stationsModel resultsTerms of intensityMonthly variationEcological variabilitySeasonal patternUseful skillsVariabilityField surveyMalaria transmissionTime lagZoneMajor public health challengeMalaria transmission patternsPublic health challengeDynamical modelRainfallClimate
2016
A breeding site model for regional, dynamical malaria simulations evaluated using in situ temporary ponds observations
Asare E, Tompkins A, Amekudzi L, Ermert V. A breeding site model for regional, dynamical malaria simulations evaluated using in situ temporary ponds observations. Geospatial Health 2016, 11: 390. PMID: 27063734, DOI: 10.4081/gh.2016.390.Peer-Reviewed Original ResearchMosquito breeding site water temperature observations and simulations towards improved vector-borne disease models for Africa
Asare E, Tompkins A, Amekudzi L, Ermert V, Redl R. Mosquito breeding site water temperature observations and simulations towards improved vector-borne disease models for Africa. Geospatial Health 2016, 11: 391. PMID: 27063735, DOI: 10.4081/gh.2016.391.Peer-Reviewed Original Research
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