2023
Statin use, survival and incidence of thrombosis among older patients with polycythemia vera and essential thrombocythemia
Podoltsev N, Wang R, Shallis R, Stempel J, Di M, Neparidze N, Zeidan A, Huntington S, Giri S, Hull S, Gore S, Ma X. Statin use, survival and incidence of thrombosis among older patients with polycythemia vera and essential thrombocythemia. Cancer Medicine 2023, 12: 18889-18900. PMID: 37702132, PMCID: PMC10557879, DOI: 10.1002/cam4.6528.Peer-Reviewed Original ResearchConceptsIncidence of thrombosisPolycythemia veraEssential thrombocythemiaStatin useOlder adultsEnd Results-Medicare databasePopulation-based cohort studyArterial thrombotic eventsSurvival of patientsUse of statinsClaims-based studyRisk of thrombosisCardiovascular morbidityCause mortalityTreatment weighting (IPTW) approachCohort studyOlder patientsOverall survivalThrombotic eventsVenous thrombosisPatient populationPrevious registryStatinsTherapeutic strategiesET subgroupSecond malignancies among older patients with classical myeloproliferative neoplasms treated with hydroxyurea
Wang R, Shallis R, Stempel JM, Huntington SF, Zeidan AM, Gore SD, Ma X, Podoltsev NA. Second malignancies among older patients with classical myeloproliferative neoplasms treated with hydroxyurea. Blood Advances 2023, 7: 734-743. PMID: 35917456, PMCID: PMC9989521, DOI: 10.1182/bloodadvances.2022008259.Peer-Reviewed Original ResearchConceptsSecond malignanciesAcute myeloid leukemiaOlder patientsMyelodysplastic syndromeMyeloproliferative neoplasmsHU usersHigh riskPolycythemia veraEssential thrombocythemiaRisk of SMAML/myelodysplastic syndromeClassical Philadelphia chromosome-negative myeloproliferative neoplasmsImpact of hydroxyureaRetrospective cohort studyUse of hydroxyureaPhiladelphia chromosome-negative myeloproliferative neoplasmsClassical myeloproliferative neoplasmsCumulative incidence probabilityCohort studyCytoreductive therapyPatient characteristicsMedian ageHU useMyeloid leukemiaSecondary myelofibrosis
2020
Lifestyle factors and risk of myeloproliferative neoplasms in the NIH‐AARP diet and health study
Podoltsev NA, Wang X, Wang R, Hofmann JN, Liao LM, Zeidan AM, Mesa R, Ma X. Lifestyle factors and risk of myeloproliferative neoplasms in the NIH‐AARP diet and health study. International Journal Of Cancer 2020, 147: 948-957. PMID: 31904114, PMCID: PMC8919268, DOI: 10.1002/ijc.32853.Peer-Reviewed Original ResearchConceptsNIH-AARP DietPolycythemia veraMyeloproliferative neoplasmsEssential thrombocythemiaHazard ratioLifestyle factorsCaffeine intakeHealth StudyMultivariable Cox proportional hazards regression modelsCox proportional hazards regression modelRisk of PVProportional hazards regression modelsRisk of MPNLarge prospective studiesHazards regression modelsConfidence intervalsPhiladelphia chromosome-negative myeloproliferative neoplasmsMPN riskOverall cohortProspective cohortProspective studyInverse associationRisk factorsPV riskProtective effect
2018
The impact of phlebotomy and hydroxyurea on survival and risk of thrombosis among older patients with polycythemia vera
Podoltsev NA, Zhu M, Zeidan AM, Wang R, Wang X, Davidoff AJ, Huntington SF, Giri S, Gore SD, Ma X. The impact of phlebotomy and hydroxyurea on survival and risk of thrombosis among older patients with polycythemia vera. Blood Advances 2018, 2: 2681-2690. PMID: 30333100, PMCID: PMC6199652, DOI: 10.1182/bloodadvances.2018021436.Peer-Reviewed Original ResearchConceptsRisk of thrombosisPV patientsOverall survivalThrombotic eventsMultivariable Cox proportional hazards modelsEnd Results-Medicare databaseHigh-risk PV patientsCox proportional hazards modelOlder adultsImpact of phlebotomyRetrospective cohort studyPopulation-based studyProportional hazards modelEffect of phlebotomyOutcomes of interestPolycythemia vera patientsContemporary clinical practiceImproved OSCohort studyCytoreductive therapyOlder patientsTherapeutic phlebotomyTreatment modalitiesCurrent guidelinesLower risk
2016
Differences in treatment goals and perception of symptom burden between patients with myeloproliferative neoplasms (MPNs) and hematologists/oncologists in the United States: Findings from the MPN Landmark survey
Mesa RA, Miller CB, Thyne M, Mangan J, Goldberger S, Fazal S, Ma X, Wilson W, Paranagama DC, Dubinski DG, Naim A, Parasuraman S, Boyle J, Mascarenhas JO. Differences in treatment goals and perception of symptom burden between patients with myeloproliferative neoplasms (MPNs) and hematologists/oncologists in the United States: Findings from the MPN Landmark survey. Cancer 2016, 123: 449-458. PMID: 27690182, PMCID: PMC5297986, DOI: 10.1002/cncr.30325.Peer-Reviewed Original ResearchConceptsPatient respondentsPhysician respondentsTreatment goalsPhysicians' self-reported practicesProportion of patientsImportant treatment goalSatisfaction of patientsPatient-physician communicationPrognostic risk classificationSelf-reported practicesThrombotic eventsCommon symptomsSymptom improvementPatient recollectionSymptom assessmentPatients' perceptionsPatient educationDelay progressionImportant symptomPatientsRisk classificationSymptomsDisease managementLandmark surveyOne-third
2008
Prevalence of polycythemia vera and essential thrombocythemia
Ma X, Vanasse G, Cartmel B, Wang Y, Selinger HA. Prevalence of polycythemia vera and essential thrombocythemia. American Journal Of Hematology 2008, 83: 359-362. PMID: 18181200, DOI: 10.1002/ajh.21129.Peer-Reviewed Original ResearchConceptsPrevalence of PVPolycythemia veraEssential thrombocythemiaMyeloproliferative disordersUS populationAge-standardized prevalenceHealth claims dataAge-specific prevalenceLarge US populationEntire US populationClaims dataET patientsInsurance payerHealth claimsLogistic regressionPrevalencePatientsMedicaid ServicesMolecular etiologyCommon typeThrombocythemiaDisordersUnited StatesAffected populationVera