2020
Birth Characteristics and Risk of Early-Onset Synovial Sarcoma
Wiemels JL, Wang R, Feng Q, Clark CJ, Amatruda JF, Rubin E, Yee AC, Morimoto LM, Metayer C, Ma X. Birth Characteristics and Risk of Early-Onset Synovial Sarcoma. Cancer Epidemiology Biomarkers & Prevention 2020, 29: 1162-1167. PMID: 32245786, PMCID: PMC7605594, DOI: 10.1158/1055-9965.epi-20-0093.Peer-Reviewed Original ResearchConceptsSynovial sarcomaBirth weightMultivariable logistic regression analysisEpidemiologic researchFurther epidemiologic researchLittle epidemiologic researchHigh birth weightSynovial sarcoma casesSiblings of patientsLogistic regression analysisBirth orderNon-Hispanic whitesYoung adult periodYear of birthElevated cancer incidencePoor outcomeBirth characteristicsPeak incidenceRare cancersRisk factorsCancer incidenceCancer casesAggressive cancerHigh riskSarcoma cases
2018
Does Provider Experience Treating Patients (pts) with Myelodysplastic Syndromes (MDS) Explain Duration of Hypomethylating Agent (HMA) Therapy and Overall Survival (OS)? A Large Population-Based Analysis
Zeidan A, Hu X, Zhu W, Stahl M, Giri S, Huntington S, Wang R, Podoltsev N, Gore S, Ma X, Davidoff A. Does Provider Experience Treating Patients (pts) with Myelodysplastic Syndromes (MDS) Explain Duration of Hypomethylating Agent (HMA) Therapy and Overall Survival (OS)? A Large Population-Based Analysis. Blood 2018, 132: 370. DOI: 10.1182/blood-2018-99-111052.Peer-Reviewed Original ResearchHMA cyclesOverall survivalHMA initiationHMA therapyMyelodysplastic syndromeProvider typeCancer CenterMD volumeMultivariate Cox proportional hazardsKaplan-Meier log-rank testAZA-001 trialMedian overall survivalTwo-sided statistical testsLog-rank testReal-world survivalCox proportional hazardsLogistic regression analysisWilcoxon rank sum testChi-square testCommunity-based practiceRank sum testEligible ptsLookback periodEarly discontinuationAgent therapyAssociation Between Prostate Magnetic Resonance Imaging and Observation for Low-risk Prostate Cancer
Leapman MS, Wang R, Park HS, Yu JB, Weinreb JC, Gross CP, Ma X. Association Between Prostate Magnetic Resonance Imaging and Observation for Low-risk Prostate Cancer. Urology 2018, 124: 98-106. PMID: 30107188, DOI: 10.1016/j.urology.2018.07.041.Peer-Reviewed Original ResearchConceptsLow-risk prostate cancerProstate magnetic resonance imagingMagnetic resonance imagingProstate cancerDefinitive treatmentPCa diagnosisEnd Results-Medicare databaseResonance imagingMultivariable logistic regression analysisPropensity scoreDiagnosis of PCaUse of MRIConditional logistic regression modelsLogistic regression analysisLogistic regression modelsInitial managementMultivariable analysisGreater oddsPatientsSocioeconomic statusDiagnosisHigher likelihoodRegression analysisDemographic factorsCancer
2017
Health Care Use by Older Adults With Acute Myeloid Leukemia at the End of Life
Wang R, Zeidan AM, Halene S, Xu X, Davidoff AJ, Huntington SF, Podoltsev NA, Gross CP, Gore SD, Ma X. Health Care Use by Older Adults With Acute Myeloid Leukemia at the End of Life. Journal Of Clinical Oncology 2017, 35: jco.2017.72.714. PMID: 28783450, PMCID: PMC5648174, DOI: 10.1200/jco.2017.72.7149.Peer-Reviewed Original ResearchConceptsAcute myeloid leukemiaDays of lifeEnd of lifeLife careHospice careOlder patientsHospice enrollmentMyeloid leukemiaIntensive care unit admissionMultivariable logistic regression analysisOlder adultsLate hospice enrollmentCare unit admissionRetrospective cohort studyUse of chemotherapyIntensive care unitHealth care useLogistic regression analysisYears of ageUnit admissionAggressive treatmentCohort studyOverall cohortAML diagnosisCare unit
2012
HLA-DP genetic variation, proxies for early life immune modulation and childhood acute lymphoblastic leukemia risk
Urayama KY, Chokkalingam AP, Metayer C, Ma X, Selvin S, Barcellos LF, Wiemels JL, Wiencke JK, Taylor M, Brennan P, Dahl GV, Moonsamy P, Erlich HA, Trachtenberg E, Buffler PA. HLA-DP genetic variation, proxies for early life immune modulation and childhood acute lymphoblastic leukemia risk. Blood 2012, 120: 3039-3047. PMID: 22923493, PMCID: PMC3471514, DOI: 10.1182/blood-2012-01-404723.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultCase-Control StudiesChildChild, PreschoolFemaleGenetic Predisposition to DiseaseGenetic VariationGenotypeHispanic or LatinoHLA-DP alpha-ChainsHLA-DP beta-ChainsHumansImmunologic FactorsInfantMalePrecursor Cell Lymphoblastic Leukemia-LymphomaPrognosisRisk FactorsWhite PeopleYoung AdultConceptsAcute lymphoblastic leukemiaImmune modulationChildhood acute lymphoblastic leukemiaChildhood acute lymphoblastic leukemia riskAcute lymphoblastic leukemia riskEarly immune modulationHuman leukocyte antigen (HLA) genesLowest exposure categoryLogistic regression analysisEtiology of childhoodNon-Hispanic whitesHLA-DPB1 geneRace/ethnicityInfectious exposureLymphoblastic leukemiaImmune mechanismsExposure categoriesHispanic ethnicityLeukemia riskGenetic susceptibility lociHLA-DPA1Immune systemHispanic childrenRegression analysisEvidence of interaction
2005
Vaccination history and risk of childhood leukaemia
Ma X, Does MB, Metayer C, Russo C, Wong A, Buffler PA. Vaccination history and risk of childhood leukaemia. International Journal Of Epidemiology 2005, 34: 1100-1109. PMID: 15951359, DOI: 10.1093/ije/dyi113.Peer-Reviewed Original ResearchConceptsChildhood leukemiaB vaccineHaemophilus influenzae type b vaccineInfluenzae type b vaccineConditional logistic regression analysisBirth certificate controlsType b vaccineHepatitis B vaccineNorthern California Childhood Leukemia StudyCase-control studyRole of vaccinationNumber of dosesType of vaccineRisk of leukemiaPotential confounding factorsLogistic regression analysisCalifornia Childhood Leukemia StudyChildhood Leukemia StudyDetailed exposure assessmentNumber of administrationsHib vaccinationHib vaccineVaccination historyIncident casesMore doses