2021
Prevalence of Missing Data in the National Cancer Database and Association With Overall Survival
Yang DX, Khera R, Miccio JA, Jairam V, Chang E, Yu JB, Park HS, Krumholz HM, Aneja S. Prevalence of Missing Data in the National Cancer Database and Association With Overall Survival. JAMA Network Open 2021, 4: e211793. PMID: 33755165, PMCID: PMC7988369, DOI: 10.1001/jamanetworkopen.2021.1793.Peer-Reviewed Original ResearchConceptsNational Cancer DatabaseNon-small cell lung cancerOverall survivalCell lung cancerCancer DatabaseMedical recordsLung cancerProstate cancerBreast cancerPatient recordsComplete dataRetrospective cohort studyCohort studyCancer RegistryCommon cancerVariables of interestHigh prevalenceMAIN OUTCOMEPatientsClinical advancementReal-world data sourcesCancerPrevalenceSurvivalHeterogeneous differences
2018
The China Patient-centered Evaluative Assessment of Cardiac Events (China PEACE) retrospective heart failure study design
Yu Y, Zhang H, Li X, Lu Y, Masoudi FA, Krumholz HM, Li J. The China Patient-centered Evaluative Assessment of Cardiac Events (China PEACE) retrospective heart failure study design. BMJ Open 2018, 8: e020918. PMID: 29748344, PMCID: PMC5950642, DOI: 10.1136/bmjopen-2017-020918.Peer-Reviewed Original ResearchConceptsHeart failureChina PatientEthics CommitteeRetrospective cohort studyHeart Failure StudyCardiovascular disease prevalenceEthics committee approvalQuality of careHospital outcomesCohort studyPatient characteristicsLeading causeMedical recordsCardiovascular diseaseCase ascertainmentTreatment outcomesCurrent burdenCommittee approvalData abstractionDiagnostic testingPatient recordsCentral Ethics CommitteeLocal approvalPatientsStudy design
2006
Acute, Severe Noncardiac Conditions in Patients with Acute Myocardial Infarction
Lichtman JH, Fathi A, Radford MJ, Lin Z, Loeser CS, Krumholz HM. Acute, Severe Noncardiac Conditions in Patients with Acute Myocardial Infarction. The American Journal Of Medicine 2006, 119: 843-850. PMID: 17000215, DOI: 10.1016/j.amjmed.2006.03.040.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionNoncardiac conditionsHospital mortalityPrognostic importanceMyocardial infarctionMortality riskYale-New Haven HospitalExcessive mortality riskHospital mortality riskSubgroup of patientsSubset of patientsRisk-adjusted analysisRisk of deathMultivariable logistic modelCardiac severityInitial therapyConsecutive patientsClinical presentationMultivariable analysisMedical historyPatientsPatient recordsMortalityMarked increaseInfarction