2010
Early life exposure to infections and risk of childhood acute lymphoblastic leukemia
Urayama KY, Ma X, Selvin S, Metayer C, Chokkalingam AP, Wiemels JL, Does M, Chang J, Wong A, Trachtenberg E, Buffler PA. Early life exposure to infections and risk of childhood acute lymphoblastic leukemia. International Journal Of Cancer 2010, 128: 1632-1643. PMID: 21280034, PMCID: PMC3165002, DOI: 10.1002/ijc.25752.Peer-Reviewed Original ResearchConceptsNorthern California Childhood Leukemia StudyAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaNon-Hispanic white childrenEarly life exposureDaycare attendanceLymphoblastic leukemiaEar infectionsLife exposureHispanic childrenCommon childhood infectionsAge 6 monthsWhite childrenCalifornia Childhood Leukemia StudyBirth orderChildhood Leukemia StudyChildhood infectionsCommon infectionsProtective roleInfectionSociodemographic differencesLeukemia StudyHispanic populationChildrenRiskA 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 ResearchConceptsDay 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
Exposure 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 ResearchConceptsDay 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
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