Recent Publications
1. Hyun C, Yoon SY, Kim S, Lee S, McMenamin J. Patient Navigator facilitated text messaging intervention improves linkage to care in viral hepatitis B: a pilot study. J Mobile Technology in Medicine 2017; 6 (2) doi:10.7309/jmtm.6.2.2.
2. Hyun C, McMenamin J, Ko O, Kim S. Efficacy of a Mobile Texting App (HepTalk) in Encouraging Patient Participation in Viral Hepatitis B Care: Development and Cohort Study. JMIR Mhealth Uhealth. 2020 Apr; 8(4): e15098. Published online 2020 Apr 1. doi: 10.2196/15098.
3. Hyun C, Wang H, Ko O, Lee S, McMenamin J. Hepatitis B Awareness Campaign in Chinese Americans: A Community Outreach Model to Facilitate Screening and Linkage to Care. International Journal of Health Promotion and Education. Aug 2021 DOI: 10.1080/14635240.2021.1964375.
4. Hyun C, Cho D. Gastric Cancer Disparities in the United States: Overcoming the Barriers. International Journal of Clinical Medicine. (Review article) 15:1 Jan 2024 10.4236/ijcm.2024.151002.
5. Hyun C, Kim S, Li E, Kim M, Spinnell M, Mcmenamin J, Cho D. Chronic hepatitis B in Indian Americans: Lack of Screening and Poor Linkage to Care. IJCM 15:4; 197-209 April 2024. https://doi.org/10.4236/ijcm.2024.154014
6. Hyun C, Kim S, Hyun S, McMenamin J. Community-BaseHepatitis B Campaign in Asian Americans. IJCM 15:9; 389-412. Sept.2024 DOI: 10.4236/ijcm.2024.159025
7. Hyun CS. From ivory towers to Main Street: advancing community health in a corporate era. Health Aff Forefront. July 1, 2025. https://www.healthaffairs.org/content/forefront/ivory-towers-main-street-advancing-community-health-corporate-era
8. "From Ivory Towers To Main Street: Advancing Community Health In A Corporate Era", Health Affairs Forefront, July 1, 2025. DOI: 10.1377/forefront.20250624.9221
9. Chul S. Hyun et al. Gastric Adenocarcinoma in the United States: The Toll of Late Diagnosis and Racial and Geographic Disparities. JCO Oncol Adv 2, e2500063(2025). DOI:10.1200/OA-25-00063
Publications
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2026
- Peer-Reviewed Original ResearchFamily historyFamily history of gastric cancerAmerican CollegeHistory of gastric cancerBritish Society of GastroenterologyGastric cancer riskIncidence of gastric cancerGastric cancer preventionTest-and-treatSociety of GastroenterologyHigh-risk populationEndoscopy useCancer riskAge-based strategiesPrimary preventionCancer preventionHigh-risk groupPreventable deathsU.S. populationGastric cancerNew-onset dyspepsiaAlarm featuresH. pylori eradicationAdvance equityBritish Society
Beyond Incidence and Mortality: Socioeconomic Mediation of Gastric Cancer Disparities in the United States, 1990–2021
Kim Y, Oh S, Hong S, Kim M, Yon D, Shin J, Hyun C. Beyond Incidence and Mortality: Socioeconomic Mediation of Gastric Cancer Disparities in the United States, 1990–2021. Annals Of Global Health 2026, 92: 14. PMID: 41659210, PMCID: PMC12880004, DOI: 10.5334/aogh.5015.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsConceptsDisability-adjusted life yearsDistrict of ColumbiaSocioeconomic mediatorsEthnic disparitiesConclusions:Results:Global burdenGlobal Burden of DiseaseBurden of diseaseLow-income populationsCancer disparitiesSocial determinantsGC incidenceSocioeconomic differencesSociodemographic indexGC ratesNutritional interventionHispanic populationLife yearsHealth burdenDisease burdenNational averageMigrant-receiving countriesDisparitiesAsian populationsOne cancer, two stories: divergent estimates of gastric cancer burden in Korea
Hyun C, Kim Y, Oh S, Hong S, Shin J. One cancer, two stories: divergent estimates of gastric cancer burden in Korea. Archives Of Public Health 2026, 84: 13. PMID: 41535985, PMCID: PMC12801540, DOI: 10.1186/s13690-025-01801-2.Peer-Reviewed Original ResearchConceptsDisability-adjusted life yearsKorean National Burden of DiseaseBurden of diseaseBurden of disease estimatesNational burden of diseaseGastric cancer burdenGastric cancer screeningNational screening programGBD estimatesCancer screeningCancer burdenHealth comparisonsMortality dataMortality reportsGBD methodScreening programNational screeningYLLDALI studyYLDsLife yearsNational dataGBDDisabilityConclusionOur findings
2025
Population screening for Helicobacter pylori to reduce gastric cancer – Authors' reply
Sundar R, Hyun C, Smyth E. Population screening for Helicobacter pylori to reduce gastric cancer – Authors' reply. The Lancet 2025, 406: 2060-2061. PMID: 41176388, DOI: 10.1016/s0140-6736(25)01957-9.Peer-Reviewed Original ResearchAltmetricConceptsMigration-Informed Strategies for Gastric Cancer Prevention in the United States: Closing the Equity Gap
Hyun C. Migration-Informed Strategies for Gastric Cancer Prevention in the United States: Closing the Equity Gap. Cancer Control 2025, 32: 10732748251406673. PMID: 41381049, PMCID: PMC12698997, DOI: 10.1177/10732748251406673.Peer-Reviewed Original ResearchAltmetricMeSH Keywords and ConceptsConceptsGastric cancer preventionCancer preventionStomach cancer preventionCancer prevention policiesNon-cardia gastric adenocarcinomaColorectal cancer preventionPrevent diseaseHelicobacter pylori exposureHigh-incidence regionsAvoidable disparitiesNational recognitionUnderserved populationsHealth lensNational screeningUnited StatesPrevention policiesPrevention infrastructureEquity gapCommunity organizationsGastric cancerSources of inequalityPreventionAcademic centersTargeted testingElevated ratesGastric Adenocarcinoma in the United States: The Toll of Late Diagnosis and Racial and Geographic Disparities
Chul S. Hyun et al. Gastric Adenocarcinoma in the United States: The Toll of Late Diagnosis and Racial and Geographic Disparities. JCO Oncol Adv 2, e2500063(2025). DOI:10.1200/OA-25-00063Peer-Reviewed Original ResearchGastric Adenocarcinoma in the United States: The Toll of Late Diagnosis and Racial and Geographic Disparities
Hyun C, Wang R, Kim Y, Hong S, Shin J, Sundar R, Kunz P. Gastric Adenocarcinoma in the United States: The Toll of Late Diagnosis and Racial and Geographic Disparities. JCO Oncology Advances 2025 DOI: 10.1200/oa-25-00063.Peer-Reviewed Original ResearchCitationsAltmetricConceptsGastric adenocarcinomaPoor survivalHazard ratioGastric cancerMedian survivalGeographic disparitiesRacial disparitiesDistant stageNon-Hispanic black patientsSurvival rateNon-Hispanic AsiansTargeted prevention strategiesEarly detection effortsHigh-risk populationTumor locationSurvival outcomesLate diagnosisPrevention strategiesElevated riskUnited StatesBlack patientsDetection programGA incidenceGA casesDisparitiesA Migration-Informed, Risk-Based Approach to <i>H. pylori</i> Screening and Gastric Cancer Prevention in the U.S.
Hyun C. A Migration-Informed, Risk-Based Approach to H. pylori Screening and Gastric Cancer Prevention in the U.S. The Korean Journal Of Helicobacter And Upper Gastrointestinal Research 2025, 25: 205-208. PMID: 40935620, PMCID: PMC12425664, DOI: 10.7704/kjhugr.2025.0028.Peer-Reviewed Original ResearchRethinking gastric cancer prevention through an immigrant health lens
Hyun C, Oh S, Wu L, Moy R, Shin J. Rethinking gastric cancer prevention through an immigrant health lens. Nature Reviews Gastroenterology & Hepatology 2025, 22: 600-601. PMID: 40691298, DOI: 10.1038/s41575-025-01098-0.Peer-Reviewed Original ResearchCitationsAltmetricFrom Ivory Towers To Main Street: Advancing Community Health In A Corporate Era
"From Ivory Towers To Main Street: Advancing Community Health In A Corporate Era", Health Affairs Forefront, July 1, 2025. DOI: 10.1377/forefront.20250624.922192Commentaries, Editorials and Letters
2024
Chronic Hepatitis B in Indian Americans: Lack of Screening and Poor Linkage to Care
Hyun C, Kim S, Li E, Lee M, Spinnell M, McMenamin J, Cho D. Chronic Hepatitis B in Indian Americans: Lack of Screening and Poor Linkage to Care. International Journal Of Clinical Medicine 2024, 15: 197-209. DOI: 10.4236/ijcm.2024.154014.Peer-Reviewed Original ResearchCitations
2021
Hepatitis B Awareness Campaign in Chinese Americans: A Community Outreach Model to Facilitate Screening and Linkage to Care
Hyun C, Wang H, Ko O, Lee S, McMenamin J. Hepatitis B Awareness Campaign in Chinese Americans: A Community Outreach Model to Facilitate Screening and Linkage to Care. International Journal Of Health Promotion And Education 2021, 59: 366-377. DOI: 10.1080/14635240.2021.1964375.Peer-Reviewed Original ResearchCitationsAltmetricConceptsHepatitis B virusAccessing CareChronic hepatitis BChinese AmericansLinkage-to-careChinese-American adultsCommunity outreach modelChinese-AmericansPrevalence of chronic HBV infectionHepatitis B virus-infected individualsScreening educationHepatitis B virus prevalenceHepatitis B surface antigenChronic HBV infectionAwareness of infectionAdequate careOutreach modelPatient awarenessB surface antigenLiver-related morbidityInadequate educationCareSeropositive subjectsHBV infectionHepatitis B
2020
Efficacy of a Mobile Texting App (HepTalk) in Encouraging Patient Participation in Viral Hepatitis B Care: Development and Cohort Study
Hyun C, McMenamin J, Ko O, Kim S. Efficacy of a Mobile Texting App (HepTalk) in Encouraging Patient Participation in Viral Hepatitis B Care: Development and Cohort Study. JMIR MHealth And UHealth 2020, 8: e15098. PMID: 32234704, PMCID: PMC7160703, DOI: 10.2196/15098.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsImprove patient engagementHealth care accessPatient navigationPatient engagementCare accessTexting appsHepatitis B careHealth care providersAdequate health careKorean American participantsPatient participationCare providersHealth careHealth educationIntervention periodFinding providersScheduling appointmentsNumerous barriersText messagesCohort studyHealthProvidersAsian AmericansAmerican participantsParticipants
2019
Long term outcome of a community-based hepatitis B awareness campaign: eight-year follow-up on linkage to care (LTC) in HBV infected individuals
Hyun C, Ko O, Lee S, McMenamin J. Long term outcome of a community-based hepatitis B awareness campaign: eight-year follow-up on linkage to care (LTC) in HBV infected individuals. BMC Infectious Diseases 2019, 19: 638. PMID: 31319805, PMCID: PMC6637477, DOI: 10.1186/s12879-019-4283-x.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsConceptsLack of health insuranceHigh-risk immigrant populationsCommunity screening eventsContinuum of careHBV-infected individualsKorean American adultsHealth insurance statusHepatitis B screeningAwareness of HBV infectionAsian American populationEight-year follow-upHBV-infected participantsHealth disparitiesAccessing CareHealthcare accessFollow-upScreening eventsHealth educationBackgroundChronic hepatitis BHBV infectionInsurance statusNumerous barriersSelf-AwarenessAmerican adultsLack of engagementThe prevalence and significance of isolated hepatitis B core antibody (anti-HBc) in endemic population
Hyun C, Lee S, Ventura W. The prevalence and significance of isolated hepatitis B core antibody (anti-HBc) in endemic population. BMC Research Notes 2019, 12: 251. PMID: 31060623, PMCID: PMC6501423, DOI: 10.1186/s13104-019-4287-z.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsHepatitis B virusPrevalence of isolated anti-HBcHepatitis B core antibodyIsolated anti-HBcAnti-HBcAnti-HBsRisk of HBV reactivationSusceptibility to hepatitis B virusPrevalence of hepatitis B virusPrevalence of HBV exposureHepatitis B virus infectionHepatitis B virus screening programHepatitis B surface antibodyHepatitis B surface antigenB surface antigenModerate to high riskNon-immune populationHBV reactivationHBV exposureChronic infectionSerological markersB virusHBV screeningScreening programHBsAg
2017
Patient Navigator Facilitated Text Messaging Intervention Improves Linkage to care in Viral Hepatitis B: A Pilot Study
Hyun C, Yoon S, Kim S, Lee S, McMenamin J. Patient Navigator Facilitated Text Messaging Intervention Improves Linkage to care in Viral Hepatitis B: A Pilot Study. Journal Of Mobile Technology In Medicine 2017, 6: 11-18. DOI: 10.7309/jmtm.6.2.2.Peer-Reviewed Original ResearchCitations
2016
Chronic hepatitis B in Korean Americans: decreased prevalence and poor linkage to care
Hyun C, Kim S, Kang S, Jung S, Lee S. Chronic hepatitis B in Korean Americans: decreased prevalence and poor linkage to care. BMC Infectious Diseases 2016, 16: 415. PMID: 27526685, PMCID: PMC4986342, DOI: 10.1186/s12879-016-1732-7.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsLinkage-to-careKorean AmericansSusceptible to HBVKorean American adultsSelf-administered questionnaireHepatitis B virus(HBV) infectionAsian American populationHBV prevalencePrevalence of chronic HBVHigh-risk populationAccessing CareHBV-infected subjectsHepatitis B surface antibodyHepatitis B surface antigenChronic hepatitis BCompared to femalesClinical carePoor linkageRate of HBsAgB surface antigenImpact of HBVLiver related morbidityAmerican adultsHistory of infectionHBV screeningA community- based hepatitis B linkage-to-care program: a case study on Asian Americans chronically infected with hepatitis B virus
Hyun C, Ventura W, Kim S, Yoon S, Lee S. A community- based hepatitis B linkage-to-care program: a case study on Asian Americans chronically infected with hepatitis B virus. Hepatology, Medicine And Policy 2016, 1: 6. PMID: 30288310, PMCID: PMC5898511, DOI: 10.1186/s41124-016-0006-8.Peer-Reviewed Original ResearchCitationsAltmetricConceptsPatient navigationCommunity-based patient navigatorsNetwork of health care providersAsian AmericansCommunity screening eventsImprove health outcomesHealth care providersHepatitis B virusPlanned follow-up visitsHepatitis B virus-infected individualsCulturally competent programsSelf-report questionnairesChronic hepatitis BKorean American communityHigh-risk populationPN programsCare providersLinkage ratesHealth outcomesEthnic disparitiesScreening eventsHealth careAdequate carePrevalence of hepatitis BPatient progressAnalysis of Speeding Characteristics Using Data from Red Light and Speed Enforcement Cameras
PARK J, KIM J, HYUN C, JOO D. Analysis of Speeding Characteristics Using Data from Red Light and Speed Enforcement Cameras. Journal Of Korean Society Of Transportation 2016, 34: 29-42. DOI: 10.7470/jkst.2016.34.1.029.Peer-Reviewed Original ResearchCitationsConceptsSpeed enforcement camerasSpeeding violationsEnforcement camerasSignalized intersectionsCrash occurrenceCrash severityTraffic safetySpeed limitViolation historyRoad environmentCity of CheongjuCrashesSuburban areasViolation casesUse dataTicketsSPSS 20.0 softwareTrafficRoadViolationDriversRed lightVehicleDemographic characteristicsIntersection
2015
Assessment of Cultural Competence in an Ethnic Health Program: Evidence-Based Study
Cho M, Kim J, Hyun S, Hyun C, Cho D. Assessment of Cultural Competence in an Ethnic Health Program: Evidence-Based Study. Journal Of Patient-Centered Research And Reviews 2015, 2: 113-114. DOI: 10.17294/2330-0698.1135.Peer-Reviewed Original ResearchConceptsLocal medical centerHealth programsHealth professionalsHealth Care Access ProgramLinguistic needsCultural competenceOutcomes of health servicesHealth care interpretersHealth care accessMedical CenterAssessment of cultural competenceCulturally sensitive programsKorean American participantsRadio and newspapersKorean American communityEthnic groupsCare accessHealth accessHealth servicesHealth careSociodemographic characteristicsSocioeconomic determinantsAccess barriersHealth campaignsTrained staff