2020
Diet and Risk of Myeloproliferative Neoplasms in Older Individuals from the NIH-AARP Cohort
Podoltsev NA, Wang X, Wang R, Hofmann JN, Liao LM, Zeidan AM, Mesa RA, Ma X. Diet and Risk of Myeloproliferative Neoplasms in Older Individuals from the NIH-AARP Cohort. Cancer Epidemiology Biomarkers & Prevention 2020, 29: 2343-2350. PMID: 32868318, PMCID: PMC8895351, DOI: 10.1158/1055-9965.epi-20-0592.Peer-Reviewed Original ResearchConceptsRisk of MPNPolycythemia veraEssential thrombocythemiaMyeloproliferative neoplasmsHazard ratioSugar intakeDietary factorsMultivariable Cox proportional hazards modelsRisk of PVCox proportional hazards modelHigh sugar intakeNIH-AARP DietIntake of fatConfidence intervalsNIH-AARP cohortRole of dietProportional hazards modelPotential confounding variablesParticipants ages 50Warrants further investigationProspective cohortHigh intakePV riskAge 50Health Study
2019
Clinical Outcomes of Older Patients (pts) with Acute Myeloid Leukemia (AML) Receiving Hypomethylating Agents (HMAs): A Large Population-Based Study in the United States
Zeidan A, Wang R, Wang X, Shallis R, Podoltsev N, Bewersdorf J, Huntington S, Neparidze N, Giri S, Gore S, Davidoff A, Ma X. Clinical Outcomes of Older Patients (pts) with Acute Myeloid Leukemia (AML) Receiving Hypomethylating Agents (HMAs): A Large Population-Based Study in the United States. Blood 2019, 134: 646. DOI: 10.1182/blood-2019-127398.Peer-Reviewed Original ResearchRBC transfusion dependenceAcute myeloid leukemiaMedian overall survivalTransfusion independenceOverall survivalTransfusion dependenceHypomethylating agentCelgene CorporationHMA initiationIntensive chemotherapyOS probabilityMedian timeMultivariable analysisMultivariable Cox proportional hazards modelsBoehringer IngelheimAdvisory CommitteeCox proportional hazards modelDaiichi SankyoChemotherapy-related hospitalizationMo of diagnosisRBC transfusion independenceImproved overall survivalClinical trial evidenceInferior overall survivalWorse overall survival
2018
Use of Statins, Survival and Incidence of Thrombosis Among Older Adults with Polycythemia Vera: A Population-Based Study
Podoltsev N, Zhu M, Wang R, Zeidan A, Wang X, Davidoff A, Huntington S, Giri S, Gore S, Ma X. Use of Statins, Survival and Incidence of Thrombosis Among Older Adults with Polycythemia Vera: A Population-Based Study. Blood 2018, 132: 3580. DOI: 10.1182/blood-2018-99-119272.Peer-Reviewed Original ResearchStatin usersImpact of statinsLog-rank testRisk of thrombosisOverall survivalPercentage of daysPV patientsMyeloproliferative neoplasmsPV diagnosisMultivariate Cox proportional hazards modelContinuous Medicare Parts ACox proportional hazards modelCardiovascular risk factorsEnd Results-MedicareErythropoietin-independent erythroid colony formationBetter overall survivalKaplan-Meier curvesType of statinPopulation-based cohortNumber of phlebotomiesEnd of studyProportional hazards modelPart DMedicare Part AHealth maintenance organizationUse of Statins, Survival and Incidence of Thrombosis Among Older Adults with Essential Thrombocythemia: A Population-Based Study
Podoltsev N, Zhu M, Wang R, Zeidan A, Wang X, Huntington S, Giri S, Davidoff A, Gore S, Ma X. Use of Statins, Survival and Incidence of Thrombosis Among Older Adults with Essential Thrombocythemia: A Population-Based Study. Blood 2018, 132: 4865. DOI: 10.1182/blood-2018-99-119118.Peer-Reviewed Original ResearchUse of statinsIncidence of thrombosisStatin usersLog-rank testRisk of thrombosisOverall survivalEssential thrombocythemiaET diagnosisPercentage of daysHydrophilic statinsOlder adultsET patientsMultivariate Cox proportional hazards modelLarge population-based cohort studyContinuous Medicare Parts APopulation-based cohort studyCox proportional hazards modelEnd Results-MedicareErythropoietin-independent erythroid colony formationBetter overall survivalKaplan-Meier curvesPopulation-based cohortEnd of studyProportional hazards modelPart D
2017
Physician volume and discontinuation of rituximab during lymphoma treatment.
Huntington S, Long J, Hoag J, Wang R, Zeidan A, Giri S, Gore S, Ma X, Gross C, Davidoff A. Physician volume and discontinuation of rituximab during lymphoma treatment. Journal Of Clinical Oncology 2017, 35: 6593-6593. DOI: 10.1200/jco.2017.35.15_suppl.6593.Peer-Reviewed Original ResearchNon-Hodgkin lymphomaEarly discontinuationRituximab discontinuationPhysician volumeProvider volumeEnd Results-Medicare dataB-cell non-Hodgkin lymphomaCell non-Hodgkin lymphomaCox proportional hazards modelDiscontinuation of rituximabSevere infusion reactionsRetrospective cohort studyImpact of discontinuationDays of initiationProportional hazards modelDose-dependent mannerRituximab cyclesRituximab initiationInfusion reactionsOverall survivalCohort studyPrimary outcomeSystemic treatmentLymphoma treatmentRelative risk
2015
Comparative Effectiveness of Azacitidine Versus Decitabine Among Older Adults Diagnosed with Higher-Risk Myelodysplastic Syndromes (HR-MDS)
Zeidan A, Long J, Hall J, Wang R, Huntington S, Abel G, Prebet T, Podoltsev N, Gross C, Gore S, Ma X, Davidoff A. Comparative Effectiveness of Azacitidine Versus Decitabine Among Older Adults Diagnosed with Higher-Risk Myelodysplastic Syndromes (HR-MDS). Blood 2015, 126: 3285. DOI: 10.1182/blood.v126.23.3285.3285.Peer-Reviewed Original ResearchHigh-risk myelodysplastic syndromeHR-MDS patientsKaplan-Meier survival curvesEnd of studyHMA initiationMedian OSClinical trialsComorbidity countHazard ratioHigh school educationClinical practiceMultivariate Cox proportional hazards modelSurvival curvesEnd Results-Medicare databaseMedian household incomeRandomized phase III trialReal-world clinical practiceCox proportional hazards modelOlder MDS patientsDisability Status ScoreRetrospective cohort studyOverall survival advantagePhase III trialsYear of diagnosisErythropoiesis-stimulating agents
2011
Cigarette smoking shortens the survival of patients with low-risk myelodysplastic syndromes
Ma X, Wang R, Galili N, Mayne ST, Wang SA, Yu H, Raza A. Cigarette smoking shortens the survival of patients with low-risk myelodysplastic syndromes. Cancer Causes & Control 2011, 22: 623-629. PMID: 21287258, PMCID: PMC3086405, DOI: 10.1007/s10552-011-9735-6.Peer-Reviewed Original ResearchConceptsLower-risk myelodysplastic syndromesSurvival of patientsRisk of deathMyelodysplastic syndromeMDS survivalLifestyle factorsMultivariate Cox proportional hazards modelHigh-risk myelodysplastic syndromeCox proportional hazards modelLow-risk patientsProportional hazards modelInitial clinical encounterClinical characteristicsHazard ratioIndependent predictorsPrognostic roleMDS patientsCigarette smokingPoor survivalHematological malignanciesElevated riskHazards modelPatientsSmokingClinical encounters
2009
Neighborhood socioeconomic status influences the survival of elderly patients with myelodysplastic syndromes in the United States
Wang R, Gross CP, Halene S, Ma X. Neighborhood socioeconomic status influences the survival of elderly patients with myelodysplastic syndromes in the United States. Cancer Causes & Control 2009, 20: 1369-1376. PMID: 19455395, PMCID: PMC2921772, DOI: 10.1007/s10552-009-9362-7.Peer-Reviewed Original ResearchConceptsNeighborhood socioeconomic statusMyelodysplastic syndromeSocioeconomic statusElderly patientsHazard ratioMultivariate Cox proportional hazards modelCox proportional hazards modelSurvival of patientsPopulation-based studyRisk of deathRisk of mortalityProportional hazards modelImpact of SESLow socioeconomic statusCensus tractsPrognostic roleMDS patientsIndependent determinantsRefractory anemiaHistological subtypesHazards modelPatientsSES statusTractS scoresComorbidities and survival in a large cohort of patients with newly diagnosed myelodysplastic syndromes
Wang R, Gross CP, Halene S, Ma X. Comorbidities and survival in a large cohort of patients with newly diagnosed myelodysplastic syndromes. Leukemia Research 2009, 33: 1594-1598. PMID: 19324411, PMCID: PMC2749891, DOI: 10.1016/j.leukres.2009.02.005.Peer-Reviewed Original ResearchConceptsMyelodysplastic syndromeHazard ratioComorbid conditionsMDS patientsCharlson indexMultivariate Cox proportional hazards modelPrognosis of MDSChronic obstructive pulmonary diseaseCox proportional hazards modelLarge population-based studyCongestive heart failureObstructive pulmonary diseaseRole of comorbiditiesMedian survival timePopulation-based studyProportional hazards modelMDS survivalHeart failurePulmonary diseaseIndependent determinantsShorter survivalLarge cohortSurvival timeHazards modelComorbidities