Zhenqiu Lin, PhD
Senior Research ScientistCards
Appointments
Additional Titles
Senior Director, Healthcare Analytics, Center for Outcomes Research and Evaluation, Center for Outcomes Research & Evaluation (CORE)
Contact Info
Appointments
Additional Titles
Senior Director, Healthcare Analytics, Center for Outcomes Research and Evaluation, Center for Outcomes Research & Evaluation (CORE)
Contact Info
Appointments
Additional Titles
Senior Director, Healthcare Analytics, Center for Outcomes Research and Evaluation, Center for Outcomes Research & Evaluation (CORE)
Contact Info
About
Titles
Senior Research Scientist
Senior Director, Healthcare Analytics, Center for Outcomes Research and Evaluation, Center for Outcomes Research & Evaluation (CORE)
Biography
Zhenqiu Lin, PhD is Senior Director of Healthcare Analytics at the Yale/Yale-New Haven Hospital Center for Outcomes Research and Evaluation (CORE) and Senior Research Scientist at Yale University School of Medicine. He received his undergraduate and master degrees from Peking University, China and his PhD from the State University of New York at Stony Brook. His interests focus on developing quality of care measures to evaluate healthcare provider performance and advancing measurement sciences. He has led the development of many quality measures that cover different care settings including hospital, hospital outpatient department, ambulatory surgical center, accountable care organization, eligible clinician and group practice. Most of these measures have been endorsed by National Quality Forum and are now publicly reported by CMS. Recently, he has focused on developing innovative metrics that shed light on health disparities both within and across healthcare providers while simultaneously conducting research to evaluate the tangible impact of social risk factors like housing, income, education, transportation, food security, and limited access to resources
Appointments
Cardiovascular Medicine
Senior Research ScientistPrimary
Other Departments & Organizations
Education & Training
- PhD
- State University of New York (1997)
- MS
- Peking University (1989)
- BS
- Peking University (1986)
Research
Overview
Public Health Interests
ORCID
0000-0002-3089-141X
Research at a Glance
Yale Co-Authors
Publications Timeline
Harlan Krumholz, MD, SM
Joseph Ross, MD, MHS
Jennifer Mattera, DrPH, MPH
Shu-Xia Li, PhD
Jeph Herrin, PhD
Arjun Venkatesh, MD, MBA, MHS
Publications
Featured Publications
Disparities in Excess Mortality Associated with COVID-19 — United States, 2020
Rossen LM, Ahmad FB, Anderson RN, Branum AM, Du C, Krumholz HM, Li SX, Lin Z, Marshall A, Sutton PD, Faust JS. Disparities in Excess Mortality Associated with COVID-19 — United States, 2020. MMWR Morbidity And Mortality Weekly Report 2021, 70: 1114-1119. PMID: 34411075, PMCID: PMC8375709, DOI: 10.15585/mmwr.mm7033a2.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsMortality incidence ratesIncidence rateExcess mortalityAge groupsHighest excess mortality ratesExcess Mortality AssociatedGreater excess mortalityExcess mortality ratesAI/AN populationsNon-Hispanic American IndianNon-Hispanic blacksNational Vital Statistics SystemCOVID-19 pandemicPublic health messagingNon-Hispanic white populationRace/ethnicityVital Statistics SystemMortality AssociatedLack of adjustmentMortality rateExcess deathsAN populationsEthnic groupsHealth messagingHispanic personsAll-Cause Excess Mortality and COVID-19–Related Mortality Among US Adults Aged 25-44 Years, March-July 2020
Faust JS, Krumholz HM, Du C, Mayes KD, Lin Z, Gilman C, Walensky RP. All-Cause Excess Mortality and COVID-19–Related Mortality Among US Adults Aged 25-44 Years, March-July 2020. JAMA 2021, 325: 785-787. PMID: 33325994, PMCID: PMC7745134, DOI: 10.1001/jama.2020.24243.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsHospital-Readmission Risk — Isolating Hospital Effects from Patient Effects
Krumholz HM, Wang K, Lin Z, Dharmarajan K, Horwitz LI, Ross JS, Drye EE, Bernheim SM, Normand ST. Hospital-Readmission Risk — Isolating Hospital Effects from Patient Effects. New England Journal Of Medicine 2017, 377: 1055-1064. PMID: 28902587, PMCID: PMC5671772, DOI: 10.1056/nejmsa1702321.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsRisk-standardized readmission ratesReadmission ratesObserved readmission ratesSimilar diagnosesHospital effectsDifferent hospitalsHospital readmission performanceRate of readmissionHospital readmission ratesLower readmission ratesStudy sampleYears of ageSignificant differencesMultiple admissionsReadmission outcomesOnly significant differencePatient effectsSame patientMedicare recipientsPatientsReadmission performanceRisk-standardized hospital readmission ratesHospitalHospital qualityQuartileAssociation of Changing Hospital Readmission Rates With Mortality Rates After Hospital Discharge
Dharmarajan K, Wang Y, Lin Z, Normand ST, Ross JS, Horwitz LI, Desai NR, Suter LG, Drye EE, Bernheim SM, Krumholz HM. Association of Changing Hospital Readmission Rates With Mortality Rates After Hospital Discharge. JAMA 2017, 318: 270-278. PMID: 28719692, PMCID: PMC5817448, DOI: 10.1001/jama.2017.8444.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsRisk-adjusted readmission ratesRisk-adjusted mortality ratesAcute myocardial infarctionHeart failureReadmission ratesMortality rateMyocardial infarctionMedicare feeService beneficiariesHospital readmission ratesMean hospitalHospital mortalityPostdischarge mortalityHospital dischargeHospital readmissionRetrospective studyAffordable Care ActReadmission reductionMAIN OUTCOMEPneumoniaHospitalSecondary analysisWeighted Pearson correlation coefficientMortalityCare ActAccounting For Patients’ Socioeconomic Status Does Not Change Hospital Readmission Rates
Bernheim SM, Parzynski CS, Horwitz L, Lin Z, Araas MJ, Ross JS, Drye EE, Suter LG, Normand SL, Krumholz HM. Accounting For Patients’ Socioeconomic Status Does Not Change Hospital Readmission Rates. Health Affairs 2016, 35: 1461-1470. PMID: 27503972, PMCID: PMC7664840, DOI: 10.1377/hlthaff.2015.0394.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsHospital Readmissions Reduction ProgramPatients' socioeconomic statusMedicare's Hospital Readmissions Reduction ProgramLow socioeconomic statusReadmission ratesSocioeconomic statusRisk-standardized readmission ratesHospital readmission ratesReadmissions Reduction ProgramMedicaid Services methodologyReadmission measuresHospital resultsPatientsHospitalSuch hospitalsPayment penaltiesReduction programsStatusCurrent CentersLower proportionLarge proportionPercentAdjustmentProportionRelationship Between Hospital Readmission and Mortality Rates for Patients Hospitalized With Acute Myocardial Infarction, Heart Failure, or Pneumonia
Krumholz HM, Lin Z, Keenan PS, Chen J, Ross JS, Drye EE, Bernheim SM, Wang Y, Bradley EH, Han LF, Normand SL. Relationship Between Hospital Readmission and Mortality Rates for Patients Hospitalized With Acute Myocardial Infarction, Heart Failure, or Pneumonia. JAMA 2013, 309: 587-593. PMID: 23403683, PMCID: PMC3621028, DOI: 10.1001/jama.2013.333.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsRisk-standardized mortality ratesAcute myocardial infarctionRisk-standardized readmission ratesHospital risk-standardized mortality ratesHeart failureMyocardial infarctionHospital characteristicsMortality rateReadmission ratesProportion of hospitalsHospital readmissionMedicare feePneumoniaInfarctionService beneficiariesHospitalPatientsMedicaid ServicesHospital performanceSubgroupsFailureCauseReadmissionSignificant negative linear relationshipAn Administrative Claims Measure Suitable for Profiling Hospital Performance on the Basis of 30-Day All-Cause Readmission Rates Among Patients With Heart Failure
Keenan PS, Normand SL, Lin Z, Drye EE, Bhat KR, Ross JS, Schuur JD, Stauffer BD, Bernheim SM, Epstein AJ, Wang Y, Herrin J, Chen J, Federer JJ, Mattera JA, Wang Y, Krumholz HM. An Administrative Claims Measure Suitable for Profiling Hospital Performance on the Basis of 30-Day All-Cause Readmission Rates Among Patients With Heart Failure. Circulation Cardiovascular Quality And Outcomes 2008, 1: 29-37. PMID: 20031785, DOI: 10.1161/circoutcomes.108.802686.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsRisk-standardized readmission ratesCause readmission rateReadmission ratesHeart failureHospital-level readmission ratesAdjusted readmission ratesAdministrative Claims MeasureUnadjusted readmission ratesHeart failure patientsHospital risk-standardized readmission ratesMedical record dataProfiling Hospital PerformanceHierarchical logistic regression modelsUse of MedicareMedical record modelNational Quality ForumLogistic regression modelsCause readmissionClaims-based modelsHospital dischargeFailure patientsC-statisticPreventable eventsPatientsQuality Forum
2025
JACC Data Report Cardiovascular Disease Mortality Trends in the United States (1999-2023)
Yan B, Arun A, Curtis L, Kadakia K, Lin Z, Lu Y, Wadhera R, Krumholz H, Dhruva S. JACC Data Report Cardiovascular Disease Mortality Trends in the United States (1999-2023). Journal Of The American College Of Cardiology 2025, 85: 2495-2498. PMID: 40562514, DOI: 10.1016/j.jacc.2025.05.018.Peer-Reviewed Original ResearchAltmetricUse of Present-on-Admission Indicators to Improve Accuracy of Pulmonary Embolism Identification from Electronic Health Record Data
Rashedi S, Leyva H, Pfeferman M, Krishnathasan D, Bejjani A, Khairani C, Zarghami M, Jimenez D, Muriel A, Goldhaber S, Wang L, Secemsky E, Piazza G, Krumholz H, Lin Z, Bikdeli B. Use of Present-on-Admission Indicators to Improve Accuracy of Pulmonary Embolism Identification from Electronic Health Record Data. Seminars In Thrombosis And Hemostasis 2025 PMID: 40555267, DOI: 10.1055/a-2554-0043.Peer-Reviewed Original ResearchAltmetricFirearm Laws and Pediatric Mortality in the US
Faust J, Chen J, Bhat S, Otugo O, Yaver M, Renton B, Chen A, Lin Z, Krumholz H. Firearm Laws and Pediatric Mortality in the US. JAMA Pediatrics 2025, 179 PMID: 40489107, PMCID: PMC12150223, DOI: 10.1001/jamapediatrics.2025.1363.Peer-Reviewed Original ResearchAltmetricConceptsUS Supreme Court decisionSupreme Court decisionPediatric firearm mortalityCourt decisionsFirearm deathsFirearm mortalityLegal landscapeLaw categoriesLaw groupFirearm lawsFirearm regulationsLegal actionWide-ranging Online DataFirearmExcess mortalityUS children aged 0Centers for Disease Control and Prevention Wide-ranging Online DataUS Centers for Disease Control and Prevention Wide-ranging ONline DataNon-Hispanic black populationUS statesLawMortality incidence ratesChildren aged 0Associated with excess mortalityOnline Data
Academic Achievements & Community Involvement
Activities
activity Artificial Intelligence in Quality Measures Technical Expert Panel
2023 - PresentAdvisory BoardsCommittee MemberDetailsNational Quality Forumactivity Scientific Methods Panel
2023 - PresentAdvisory BoardsCommittee MemberDetailsPartnership for Quality Measurementactivity Endorsement and Maintenance Primary Prevention Committee
2023 - PresentAdvisory BoardsCommittee MemberDetailsPartnership for Quality Measurementactivity CMS Chronic Conditions Subject Matter Expert Panel and Berenson-Eggs Type of Service Classification System Restructuring Technical Panel
2019 - PresentAdvisory BoardsCommittee MemberDetailsCMSactivity JACC
2024 - PresentJournal ServiceDeputy Editor
News
News
- July 02, 2024
Yale Faculty Members Named to JACC Editorial Board
- April 03, 2024
Assessing Equity Measures in Hospital Readmissions
- April 17, 2023
Adjust For Social Risk Factors in a Measure of Quality? It Depends, Says New Study
- December 18, 2022
Yale Insights in Cardiovascular Medicine: 2022