Xiaomei Ma, PhD
Interim Department Chair and Professor of Epidemiology (Chronic Diseases)Cards
About
Research
Overview
Medical Research Interests
Chronic Disease; Epidemiology; Leukemia; Lymphoma; Myelodysplastic Syndromes; Myeloproliferative Disorders; Neoplasms
Public Health Interests
Cancer; Aging; Chronic Diseases; Health Policy; Maternal & Child Health
Publications
2025
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)
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, 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 StudyThe 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, 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 interactionDisparities 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 factorsUsing 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, DOI: 10.1016/j.jacc.2024.08.058.Peer-Reviewed Original Research
News
News
- April 02, 2025
Yale Cancer Center Annual Awards
- November 22, 2024
More Patients Opting for Close Monitoring of Early-stage Prostate Cancer
- October 23, 2024
Study Links Higher Temperatures to Increased Stroke Risk
- October 04, 2024Source: Medical Xpress
Colonoscopies among the young are on the rise
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Chronic Disease Epidemiology
PO Box 208034, 60 College Street
New Haven, CT 06520-8034
United States
Locations
60 College Street
Academic Office
Ste 406
New Haven, CT 06510