2025
Estimating the Effects of Hypothetical Ambient PM2.5 Interventions on the Risk of Dementia Using the Parametric g-Formula in the UK Biobank Cohort
Lin C, Liu R, Sutton C, DeWan A, Forastiere L, Chen K. Estimating the Effects of Hypothetical Ambient PM2.5 Interventions on the Risk of Dementia Using the Parametric g-Formula in the UK Biobank Cohort. Environmental Health Perspectives 2025, 133: 047007. PMID: 40062909, PMCID: PMC12010936, DOI: 10.1289/ehp14723.Peer-Reviewed Original ResearchConceptsRisk of dementiaParametric g-formulaUK Biobank cohortG-formulaBiobank cohortLate lifeFree of dementiaUK Biobank participantsModifiable risk factorsParticulate matterAerodynamic diameter <Annual average standardBiobank participantsHypothetical interventionAmbient particulate matterNo interventionDementiaRisk differenceInterventionRisk factorsHealth benefitsPotential health benefitsCohortRiskParticipants
2024
Estimation and inference for causal spillover effects in egocentric-network randomized trials in the presence of network membership misclassification
Chao A, Spiegelman D, Buchanan A, Forastiere L. Estimation and inference for causal spillover effects in egocentric-network randomized trials in the presence of network membership misclassification. Biostatistics 2024, 26: kxaf009. PMID: 40159413, PMCID: PMC11955068, DOI: 10.1093/biostatistics/kxaf009.Peer-Reviewed Original ResearchConceptsHIV Prevention Trials NetworkBehavioral changesImpact of interventionsPopulation behavior changePeer-based strategiesRandomized trialsIntervention effectsBehavioral interventionsStudy designSpillover effectsInterventionTrials NetworkInvestigate finite sample propertiesAverage spillover effectFinite sample propertiesBehavioral trainingParticipantsLeverage peer influenceMisclassificationDisseminate informationInterference settingOutcomesPeer influenceSurrogate networksSample propertiesAssessing Direct and Spillover Effects of Intervention Packages in Network-randomized Studies
Buchanan A, Hernández-Ramírez R, Lok J, Vermund S, Friedman S, Forastiere L, Spiegelman D. Assessing Direct and Spillover Effects of Intervention Packages in Network-randomized Studies. Epidemiology 2024, 35: 481-488. PMID: 38709023, DOI: 10.1097/ede.0000000000001742.Peer-Reviewed Original ResearchIntervention packageEffectiveness of interventional packageImprove intervention deliveryPeer education interventionHIV prevention trialsPeer educator trainingMarginal structural modelsPublic health impactHIV risk behaviorsIntervention deliveryIntervention NetworkEducational interventionParticipant visitsPrevention trialsFollow-up visitRisk behaviorsHealth impactsInterventionEducational trainingParticipantsSpillover effectsVisitsHIVExposed networksPeer
2022
Development of a Psychometric Tool to Measure Community Solidarity Among Sexual Minorities: Evidence From a Pay-it-Forward Randomized Controlled Trial
Sung A, Zhang TP, Huang W, Tang W, Alexander M, Forastiere L, Kumar N, Hall BJ, Ransome Y, Dieckhaus KD, Wu D, Tucker JD, Yang F. Development of a Psychometric Tool to Measure Community Solidarity Among Sexual Minorities: Evidence From a Pay-it-Forward Randomized Controlled Trial. Sexually Transmitted Diseases 2022, 49: 628-634. PMID: 35675708, PMCID: PMC9378620, DOI: 10.1097/olq.0000000000001659.Peer-Reviewed Original ResearchConceptsTest uptakeMultivariable logistic regressionCross-sectional questionnaireControlled TrialsInfection testingIntervention armStudy armsChlamydia testSocial network supportHigher oddsChinese menHealth outcomesPsychometric toolsLogistic regressionMenPublic healthTrialsFuture studiesSexParticipantsArmUptakeGonorrheaFactorsMSM
2021
Improving HIV Self-Testing Social Network Interventions: The Role of Sexual Behavior Disclosure Among Chinese Men Who Have Sex with Men
Kumar N, Forastiere L, Janmohamed K, Yang F, Zhang T, Sha Y, Tucker JD, Tang W, Alexander M. Improving HIV Self-Testing Social Network Interventions: The Role of Sexual Behavior Disclosure Among Chinese Men Who Have Sex with Men. AIDS And Behavior 2021, 25: 1984-1992. PMID: 33471242, DOI: 10.1007/s10461-020-03128-1.Peer-Reviewed Original ResearchConceptsIndex participantsIndex menTreatment arm dataHIV self-testing (HIVST) kitsSelf-testing kitsSexual behaviorHIV SelfHIVST interventionHIVST kitsChinese menSocial network interventionKey populationsNetwork-based interventionsSocial contactMenInterventionMSMSexKitNetwork interventionMore kitsArm dataParticipants
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