2025
Association between patient demographics and smoldering multiple myeloma progression to multiple myeloma: A SEER-Medicare data analysis
Theprungsirikul P, Wang R, Ahmad I, Neparidze N, Ma X, Chang S, Wang S. Association between patient demographics and smoldering multiple myeloma progression to multiple myeloma: A SEER-Medicare data analysis. Clinical Lymphoma Myeloma & Leukemia 2025 DOI: 10.1016/j.clml.2025.06.016.Peer-Reviewed Original ResearchSmoldering multiple myelomaSmoldering multiple myeloma patientsMultiple myelomaPatient demographicsProgression to multiple myelomaSymptomatic multiple myelomaDevelopment of hypercalcemiaCox proportional hazards modelsRisk stratification modelConfidence intervalsNon-cancer controlsEstimate hazard ratiosProportional hazards modelNon-cancer patientsSymptomatic MMRandom sample of Medicare beneficiariesSMM patientsRenal failureAnalyzed SurveillanceSEER-MedicareNatural history modelHazard ratioBone diseasePatientsSample of Medicare beneficiariesPerinatal Exposures to Ambient Fine Particulate Matter and Outdoor Artificial Light at Night and Risk of Pediatric Papillary Thyroid Cancer
Deziel N, Wang R, Warren J, Dinauer C, Ogilvie J, Clark C, Zhong C, Wiemels J, Morimoto L, Metayer C, Ma X. Perinatal Exposures to Ambient Fine Particulate Matter and Outdoor Artificial Light at Night and Risk of Pediatric Papillary Thyroid Cancer. Environmental Health Perspectives 2025, 133: 057026. PMID: 40209106, PMCID: PMC12121722, DOI: 10.1289/ehp14849.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAir PollutantsCaliforniaCarcinoma, PapillaryCase-Control StudiesChildChild, PreschoolEnvironmental ExposureFemaleHumansInfantInfant, NewbornLightingMaleParticulate MatterPregnancyPrenatal Exposure Delayed EffectsRisk FactorsThyroid Cancer, PapillaryThyroid NeoplasmsYoung AdultConceptsThyroid cancer riskOutdoor artificial lightAmbient fine particulate matterCancer riskOdds ratioAge groupsConfidence intervalsExposure to ambient fine particulate matterIndividual-level exposuresAssociated with thyroid cancerPediatric thyroid cancer incidenceControls frequency-matchedPapillary thyroid cancer riskThyroid cancer incidenceFine particulate matterCalifornia birth cohortOutdoor air pollutionAerodynamic diameter <Case-control studyHypothesized risk factorsStatistically significant associationCancer incidenceThyroid cancerExposure tertilesFrequency-matchedInitial management of patients with acquired aplastic anemia in the United States: results from a large national claims database
Stempel J, Wang R, Lee A, Zeidan A, Ma X, Podoltsev N. Initial management of patients with acquired aplastic anemia in the United States: results from a large national claims database. Annals Of Hematology 2025, 104: 2507-2515. PMID: 40102305, PMCID: PMC12052795, DOI: 10.1007/s00277-025-06307-z.Peer-Reviewed Original ResearchConceptsHematopoietic stem cell transplantationAcquired aplastic anemiaCalcineurin inhibitorsParoxysmal nocturnal hemoglobinuriaTransfusion-dependentTriple therapyAA patientsAplastic anemiaAllogeneic hematopoietic stem cell transplantationTreated with calcineurin inhibitorsTreated with antithymocyte globulinFlow cytometryInitial management of patientsSevere AA patientsStem cell transplantationBone marrow failureImmune-mediated disordersTreatment initiation delayRetrospective cohort studyManagement of patientsDiagnosis to treatmentNational claims databaseAntithymocyte globulinSibling donorMarrow failurePerinatal exposure to ambient fine particle air pollution and risk of childhood ewing sarcoma in a population-based case-control study in California (1988–2015)
Clark C, Wang R, Wiemels J, Metayer C, Deziel N, Ma X. Perinatal exposure to ambient fine particle air pollution and risk of childhood ewing sarcoma in a population-based case-control study in California (1988–2015). Environmental Health 2025, 24: 6. PMID: 40055781, PMCID: PMC11887085, DOI: 10.1186/s12940-025-01159-6.Peer-Reviewed Original ResearchConceptsHispanic childrenSarcoma riskControls frequency-matched to casesFrequency-matched to casesBirth yearPopulation-based case-control studyOdds ratioPM2.5 exposureConfidence intervalsAir pollution exposureCalifornia birth cohortNon-Hispanic childrenAmbient PM2.5 exposureFine particle air pollutionCase-control studyAmbient fine particulate matterHigher PM2.5 levelsMaternal residenceCancer riskMaternal educationPotential disparitiesBirth cohortHispanic ethnicityElevated oddsLinkage studiesPrenatal exposure to per- and polyfluoroalkyl substances (PFAS) from contaminated water and risk of childhood cancer in California, 2000–2015
Binczewski N, Morimoto L, Wiemels J, Ma X, Metayer C, Vieira V. Prenatal exposure to per- and polyfluoroalkyl substances (PFAS) from contaminated water and risk of childhood cancer in California, 2000–2015. Environmental Epidemiology 2025, 9: e365. PMID: 39802752, PMCID: PMC11723701, DOI: 10.1097/ee9.0000000000000365.Peer-Reviewed Original ResearchAdjusted odds ratiosPolyfluoroalkyl substancesPerfluorooctanesulfonic acidPerfluorooctanoic acidWilms tumorEmbryonal tumorsChildhood cancerSerum concentrationsIncreased risk of Wilms tumorRisk of Wilms tumorNon-Hodgkin's lymphomaRisk of childhood cancerMaternal serum concentrationsAcute myeloid leukemiaLevels of PFASConcentrations of perfluorooctanesulfonic acidConfidence intervalsContaminant Monitoring RuleContaminated drinking waterExposure to per-Myeloid leukemiaMexico-born mothersHealthy controlsIncreased riskContaminated water
2024
Active Surveillance or Watchful Waiting for Intermediate-Risk Prostate Cancer, 2010-2020
Ajjawi I, Loeb S, Cooperberg M, Catalona W, Gross C, Ma X, Leapman M. Active Surveillance or Watchful Waiting for Intermediate-Risk Prostate Cancer, 2010-2020. JAMA 2024, 332: 2033-2036. PMID: 39565605, PMCID: PMC11579888, DOI: 10.1001/jama.2024.20580.Peer-Reviewed Original ResearchAutoimmune Diseases and Risk of Non‐Hodgkin Lymphoma: A Mendelian Randomisation Study
Shi X, Wallach J, Ma X, Rogne T. Autoimmune Diseases and Risk of Non‐Hodgkin Lymphoma: A Mendelian Randomisation Study. Cancer Medicine 2024, 13: e70327. PMID: 39506244, PMCID: PMC11540836, DOI: 10.1002/cam4.70327.Peer-Reviewed Original ResearchConceptsRisk of non-Hodgkin lymphomaNon-Hodgkin's lymphomaAutoimmune diseasesMendelian randomisationType 1 diabetesAssociated with risk of non-Hodgkin lymphomaWeak instrument biasNon-Hodgkin lymphoma subtypesTwo-sample MRNon-Hodgkin lymphoma riskRisk factorsSusceptibility to type 1 diabetesMendelian randomisation studiesCohorts of European ancestryAssociated with riskNo significant associationPotential pleiotropyPotential risk factorsUK BiobankFinnGen studyNon-HodgkinHaematological malignanciesRandomised studyEuropean ancestrySignificant associationUse of Calcineurin Inhibitor (CNI) and Eltrombopag (EPAG) Among Patients with Acquired Aplastic Anemia (AA) in the United States: Results from a Large National Database
Stempel J, Wang R, Lee A, Ma X, Podoltsev N. Use of Calcineurin Inhibitor (CNI) and Eltrombopag (EPAG) Among Patients with Acquired Aplastic Anemia (AA) in the United States: Results from a Large National Database. Blood 2024, 144: 2319. DOI: 10.1182/blood-2024-202185.Peer-Reviewed Original ResearchHorse anti-thymocyte globulinLow transfusion burdenAcquired aplastic anemiaCalcineurin inhibitor levelsCalcineurin inhibitorsSevere AARed blood cellsEltrombopag therapyTransfusion burdenMedian proportion of daysTransfusion of red blood cellsCalcineurin inhibitor agentsMedian starting doseAnti-thymocyte globulinDiagnosis to initiationTransplant-ineligible patientsBone marrow failureRare autoimmune disorderReduce transfusion requirementsBaseline red blood cellRetrospective cohort studyStudent's t-testProportion of daysBlue Cross Blue ShieldElixhauser comorbidity scoreGenome-Wide Association Study of Acute Lymphoblastic Leukemia in Hispanic/Latino Children Identifies a Putatively Novel Risk Locus at Chromosome 5q31.1
Liu T, Langie J, Yang W, Morimoto L, Ma X, Metayer C, Lupo P, Scheurer M, Yang J, Wiemels J, Chiang C, de Smith A. Genome-Wide Association Study of Acute Lymphoblastic Leukemia in Hispanic/Latino Children Identifies a Putatively Novel Risk Locus at Chromosome 5q31.1. Blood 2024, 144: 317. DOI: 10.1182/blood-2024-208796.Peer-Reviewed Original ResearchGenome-wide association studiesMulti-Ethnic Study of AtherosclerosisCalifornia Childhood Leukemia StudySingle nucleotide polymorphismsMinor allele frequencyRisk lociHispanic/Latino individualsHispanic/Latino populationFixed-effect inverse-variance weighted meta-analysisMeta-analysis genome-wide association studyInverse-variance weighted meta-analysisHispanic Community Health Study/Study of LatinosHispanic Community Health Study/StudyHigher risk of acute lymphoblastic leukemiaHigher risk allele frequencyOdds of acute lymphoblastic leukemiaGenome-wide significant association signalsImputation quality scoreSNPs' minor allele frequencyRisk of acute lymphoblastic leukemiaGenome-wide significance thresholdAcute lymphoblastic leukemia riskEuropean ancestry populationsGenome-wide imputationMulti-Ethnic StudyDisparities in Colorectal Cancer Screening Before and After the Onset of the COVID Pandemic
Siddique S, Wang R, Gaddy J, Stempel J, Warren J, Gross C, Ma X. Disparities in Colorectal Cancer Screening Before and After the Onset of the COVID Pandemic. Journal Of General Internal Medicine 2024, 40: 611-619. PMID: 39495455, PMCID: PMC11861447, DOI: 10.1007/s11606-024-09153-3.Peer-Reviewed Original ResearchRisk of CRCSocioeconomic statusCRC screeningArea-level socioeconomic measuresArea-level socioeconomic factorsHigher risk of CRCArea residentsColorectal cancer screeningSocial deprivation indexHigher socioeconomic statusLow socioeconomic statusEthnic minoritized populationsDifference-in-differences analysisPost-onset periodDesignRetrospective cohort studyDeprivation indexCancer screeningSocioeconomic measuresPrivately insured individualsMetropolitan area residentsCOVID pandemicScreen useAverage riskCompare disparitiesSocioeconomic factorsThe Influence of DNA Repair Genes and Prenatal Tobacco Exposure on Risk of Childhood Acute Lymphoblastic Leukemia: A Gene-Environment Interaction Study.
Wang X, Zhong C, Ma X, Metayer C, Mancuso N, Gauderman W, Wiemels J. The Influence of DNA Repair Genes and Prenatal Tobacco Exposure on Risk of Childhood Acute Lymphoblastic Leukemia: A Gene-Environment Interaction Study. Cancer Epidemiology Biomarkers & Prevention 2024, 34: 100-107. PMID: 39495115, PMCID: PMC11981794, DOI: 10.1158/1055-9965.epi-24-1037.Peer-Reviewed Original ResearchPrenatal tobacco exposureTobacco exposureGene-environment interaction studiesNon-Latino white childrenAcute lymphoblastic leukemia riskChildhood ALL riskRepair genesGene-environment interactionsAcute lymphoblastic leukemiaStatistically significant interactionPotential risk factorsDNA repair genesTobacco smokeLatino childrenPediatric oncologyALL riskTargeted preventionWhite childrenLogistic regressionEpidemiological studiesEnvironmental exposuresRisk factorsTobaccoGenotype dataSignificant interactionUsing a Bayesian analytic approach to identify county-level ecological factors associated with survival among individuals with early-onset colorectal cancer
Siddique S, Baum L, Deziel N, Kelly J, Warren J, Ma X. Using a Bayesian analytic approach to identify county-level ecological factors associated with survival among individuals with early-onset colorectal cancer. PLOS ONE 2024, 19: e0311540. PMID: 39471191, PMCID: PMC11521299, DOI: 10.1371/journal.pone.0311540.Peer-Reviewed Original ResearchConceptsAge-of-onset colorectal cancerEarly-onset colorectal cancerEnd Results Program dataCenters for Disease Control and Prevention dataCounty-level factorsColorectal cancerHealth risk behaviorsIdentified principal componentsOdds of survivalPreventive servicesSurvival disparitiesLinear mixed modelsEOCRCChronic diseasesPreventive factorsUS countiesSalt Lake CountyCA residentsRisk behaviorsUnited StatesProgram dataCounty-levelOlder ageBayesian analytical approachYounger ageAmbient Temperature and Stroke Risk Among Adults Aged 18-64 Years A Case-Crossover Study
Chu L, Wang R, Gross C, Chen K, Ma X. Ambient Temperature and Stroke Risk Among Adults Aged 18-64 Years A Case-Crossover Study. Journal Of The American College Of Cardiology 2024, 84: 2327-2331. PMID: 39453364, PMCID: PMC12060033, DOI: 10.1016/j.jacc.2024.08.058.Peer-Reviewed Original ResearchLong-Term Outcomes of Prostate-Specific Membrane Antigen–PET Imaging of Recurrent Prostate Cancer
Kunst N, Long J, Westvold S, Sprenkle P, Kim I, Saperstein L, Rabil M, Ghaffar U, Karnes R, Ma X, Gross C, Wang S, Leapman M. Long-Term Outcomes of Prostate-Specific Membrane Antigen–PET Imaging of Recurrent Prostate Cancer. JAMA Network Open 2024, 7: e2440591. PMID: 39441595, PMCID: PMC11581571, DOI: 10.1001/jamanetworkopen.2024.40591.Peer-Reviewed Original ResearchConceptsProstate-specific antigenProstate-specific antigen levelPSMA-PETRecurrent prostate cancerBiochemical recurrenceProstate cancerLong-term outcomesProstate-specific membrane antigen positron emission tomographyEvaluation of biochemical recurrenceDetection of biochemical recurrenceLife yearsConventional imagingDefinitive local therapyPSMA PET imagingProstate cancer deathDetection of metastasesRetrospective cohort studyBase case analysisIncremental life-yearsPositron emission tomographyDecision-analytic modelLocal therapyConventional imaging strategiesDelayed treatmentDisease courseUSPSTF Colorectal Cancer Screening Recommendation and Uptake for Individuals Aged 45 to 49 Years
Siddique S, Wang R, Yasin F, Gaddy J, Zhang L, Gross C, Ma X. USPSTF Colorectal Cancer Screening Recommendation and Uptake for Individuals Aged 45 to 49 Years. JAMA Network Open 2024, 7: e2436358. PMID: 39361285, PMCID: PMC11450516, DOI: 10.1001/jamanetworkopen.2024.36358.Peer-Reviewed Original ResearchConceptsUS Preventive Services Task ForceUS Preventive Services Task Force recommendationsColorectal cancer screening uptakeAverage-risk individualsScreening uptakeHigher socioeconomic statusSocioeconomic statusScreening recommendationsColorectal cancerColorectal cancer screening recommendationsPreventive Services Task ForceCohort studyCancer screening recommendationsScreening uptake ratesInterrupted time series analysisLow socioeconomic statusPrivate insurance beneficiariesScreening ratesSocioeconomic disparitiesRetrospective cohort studyMain OutcomesPotential disparitiesEvaluate changesClaims dataAbsolute changePatterns of Physical Therapy Referral and Subsequent Attendance Among Childhood Cancer Survivors with Chemotherapy-Induced Peripheral Neuropathy at a Regional Childhood Cancer Survivorship Clinic
Kang L, Kadan-Lottick N, Rotatori J, Kujawski S, Messerschmidt E, Auerbach C, Balsamo L, Lustberg M, Ma X, Rodwin R. Patterns of Physical Therapy Referral and Subsequent Attendance Among Childhood Cancer Survivors with Chemotherapy-Induced Peripheral Neuropathy at a Regional Childhood Cancer Survivorship Clinic. Seminars In Oncology Nursing 2024, 40: 151716. PMID: 39164160, DOI: 10.1016/j.soncn.2024.151716.Peer-Reviewed Original ResearchChildhood cancer survivorsChemotherapy-induced peripheral neuropathyCharacteristics of survivorsPhysical therapyPercentage of adultsPT referralSurvivorship clinicCancer survivorsAttended PTPT attendanceNeighborhood characteristicsChemotherapy-induced peripheral neuropathy symptomsCancer survivorship clinicPhysical therapy referralsHigh school diplomaSurvivor educationCare coordinationOlder survivorsTherapy referralsImprove attendanceMedian percentageCancer diagnosisSchool diplomaPercentage of householdsAttendanceEnvironmental exposures and residential mobility among Hispanic and non-Hispanic White families in California
Pardeshi A, Kang A, Morimoto L, Ma X, De Smith A, Metayer C, Wiemels J, Zhong C. Environmental exposures and residential mobility among Hispanic and non-Hispanic White families in California. ISEE Conference Abstracts 2024, 2024 DOI: 10.1289/isee.2024.0554.Peer-Reviewed Original ResearchExposure to ambient air pollution during early life and risk of childhood Ewing sarcoma in a California case-control study (1988-2015)
Clark C, Wang R, Deziel N, Wiemels J, Metayer C, Ma X. Exposure to ambient air pollution during early life and risk of childhood Ewing sarcoma in a California case-control study (1988-2015). ISEE Conference Abstracts 2024, 2024 DOI: 10.1289/isee.2024.0493.Peer-Reviewed Original ResearchAssociations Between Prostate Magnetic Resonance Imaging, Genomic Testing, and Treatment for Localized Prostate Cancer
Sundaresan V, Wang R, Long J, Sprenkle P, Seibert T, Loeb S, Cooperberg M, Catalona W, Ma X, Gross C, Leapman M. Associations Between Prostate Magnetic Resonance Imaging, Genomic Testing, and Treatment for Localized Prostate Cancer. Urology Practice 2024, 11: 965-973. PMID: 39196719, DOI: 10.1097/upj.0000000000000679.Peer-Reviewed Original ResearchLocalized prostate cancerClinically localized prostate cancerHigh-risk diseaseProstate MRIProstate cancerTreatment intensificationIntensified treatmentGenomic testingTreated patientsProstate magnetic resonance imagingEnd Results databaseLong-term patient outcomesProstate cancer prognosisRetrospective cohort studyAssociated with decreased oddsRisk stratification toolPrimary study outcomeAssociated with increased oddsMagnetic resonance imagingResults databaseStratification toolTreatment patientsCohort studyRisk strataCancer prognosisHigh ambient temperature in pregnancy and risk of childhood acute lymphoblastic leukaemia: an observational study
Rogne T, Wang R, Wang P, Deziel N, Metayer C, Wiemels J, Chen K, Warren J, Ma X. High ambient temperature in pregnancy and risk of childhood acute lymphoblastic leukaemia: an observational study. The Lancet Planetary Health 2024, 8: e506-e514. PMID: 38969477, PMCID: PMC11260908, DOI: 10.1016/s2542-5196(24)00121-9.Peer-Reviewed Original ResearchConceptsRisk of childhood acute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaAcute lymphoblastic leukemiaLymphoblastic leukemiaLatino childrenNon-Latino white childrenAssociated with risk of adverse pregnancy outcomesCalifornia Cancer RegistryRisk of acute lymphoblastic leukemiaCalifornia birth recordsRisk of adverse pregnancy outcomesPre-pregnancy periodAssociated with riskBayesian meta-regressionNational Institutes of HealthCancer RegistryCases of childhood acute lymphoblastic leukemiaNational Center for Advancing Translational SciencesAdverse pregnancy outcomesAcute lymphoblastic leukemia casesInstitutes of HealthInvestigation of mechanistic pathwaysBirth recordsGestational weeks 8Pre-pregnancy
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