2010
A meta-analysis of the association between day-care attendance and childhood acute lymphoblastic leukaemia
Urayama KY, Buffler PA, Gallagher ER, Ayoob JM, Ma X. A meta-analysis of the association between day-care attendance and childhood acute lymphoblastic leukaemia. International Journal Of Epidemiology 2010, 39: 718-732. PMID: 20110276, PMCID: PMC2878455, DOI: 10.1093/ije/dyp378.Peer-Reviewed Original ResearchMeSH KeywordsCase-Control StudiesChildChild Day Care CentersCommunicable DiseasesHumansPrecursor Cell Lymphoblastic Leukemia-LymphomaRisk AssessmentConceptsDay care attendanceAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaLymphoblastic leukemiaOdds ratioRisk of childhoodCase-control studyEarly life exposureRandom-effects modelCommon infectionsSubgroup analysisProphylactic interventionsInfluence of timingObservational studyChildhood leukemiaStudy heterogeneityPubMed databaseInfected individualsRisk estimatesSimilar findingsLeukemiaInfectionEarly childhoodRare responsesEffects model
2008
Infection and pediatric acute lymphoblastic leukemia
Ma X, Urayama K, Chang J, Wiemels JL, Buffler PA. Infection and pediatric acute lymphoblastic leukemia. Blood Cells Molecules And Diseases 2008, 42: 117-120. PMID: 19064328, PMCID: PMC2834409, DOI: 10.1016/j.bcmd.2008.10.006.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAge of OnsetCase-Control StudiesChildChild Day Care CentersChild, PreschoolClone CellsCocarcinogenesisEmploymentForecastingHumansInfantInfectionsModels, BiologicalMutationNorth CarolinaParentsPrecursor B-Cell Lymphoblastic Leukemia-LymphomaPrecursor Cell Lymphoblastic Leukemia-LymphomaProspective StudiesRisk FactorsVaccinationConceptsNorthern California Childhood Leukemia StudyVaccination historyPediatric acute lymphoblastic leukemiaAcute lymphoblastic leukemiaCalifornia Childhood Leukemia StudyChild's vaccination historyChildhood Leukemia StudyDaycare attendanceLymphoblastic leukemiaInfectious agentsImmune systemLeukemia StudyChildren's exposureInfectionRecent findingsExposureSocial contactLeukemiaExposure to infections through day-care attendance and risk of childhood leukaemia
Urayama KY, Ma X, Buffler PA. Exposure to infections through day-care attendance and risk of childhood leukaemia. Radiation Protection Dosimetry 2008, 132: 259-266. PMID: 18940822, PMCID: PMC2879097, DOI: 10.1093/rpd/ncn271.Peer-Reviewed Original ResearchMeSH KeywordsCaliforniaCausalityChildChild Day Care CentersComorbidityEnvironmental ExposureHumansIncidenceInfectionsLeukemiaRisk AssessmentRisk FactorsYoung AdultConceptsDay care attendanceRisk of childhoodAcute lymphoblastic leukemiaChildhood leukemiaCommon infectionsMore common infectionsNon-Hispanic white childrenNorthern California Childhood Leukemia StudyCommon B-cell precursorDose-response effectPrevious epidemiological studiesCalifornia Childhood Leukemia StudyChildhood Leukemia StudyB cell precursorsDay care settingsSummary measuresLymphoblastic leukemiaEpidemiological studiesNumber of childrenMajority of studiesInfectionLeukemiaLeukemia StudySocial contactRelevant studies
2005
Ethnic Difference in Daycare Attendance, Early Infections, and Risk of Childhood Acute Lymphoblastic Leukemia
Ma X, Buffler PA, Wiemels JL, Selvin S, Metayer C, Loh M, Does MB, Wiencke JK. Ethnic Difference in Daycare Attendance, Early Infections, and Risk of Childhood Acute Lymphoblastic Leukemia. Cancer Epidemiology Biomarkers & Prevention 2005, 14: 1928-1934. PMID: 16103439, DOI: 10.1158/1055-9965.epi-05-0115.Peer-Reviewed Original ResearchConceptsNon-Hispanic white childrenAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaDaycare attendanceLymphoblastic leukemiaC-ALLOdds ratioEarly infectionWhite childrenNorthern California Childhood Leukemia StudyPossible etiologic roleRisk of childhoodEthnic differencesCalifornia Childhood Leukemia StudyChildhood Leukemia StudyDose-response relationshipImportant ethnic differencesEar infectionsEtiologic roleInfectious agentsMagnitude of effectInfectionDisease hypothesisLeukemia StudyHispanic children
2002
Daycare attendance and risk of childhood acute lymphoblastic leukaemia
Ma X, Buffler PA, Selvin S, Matthay KK, Wiencke JK, Wiemels JL, Reynolds P. Daycare attendance and risk of childhood acute lymphoblastic leukaemia. British Journal Of Cancer 2002, 86: 1419-1424. PMID: 11986774, PMCID: PMC2375371, DOI: 10.1038/sj.bjc.6600274.Peer-Reviewed Original ResearchConceptsAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaLymphoblastic leukemiaOdds ratioNorthern California Childhood Leukemia StudyPopulation-based controlsCalifornia Childhood Leukemia StudyCase-control pairsChildhood Leukemia StudyDate of birthBirth RegistryDaycare attendanceCommon infectionsIncident casesYounger ageLeukemiaLeukemia StudyMore childrenLonger durationChildrenDaycare settingRiskDaycareMore hoursPreschool attendance