2024
Negative Life Events and Emotional Symptoms From Ages 2 to 30 Years
Copeland W, Keen R, Tong G, Shanahan L. Negative Life Events and Emotional Symptoms From Ages 2 to 30 Years. JAMA Network Open 2024, 7: e2429448. PMID: 39207754, PMCID: PMC11362870, DOI: 10.1001/jamanetworkopen.2024.29448.Peer-Reviewed Original ResearchConceptsCross-sectional analysisEmotional symptomsNegative life eventsAssociated with emotional symptomsLife eventsYoung adulthoodAssociated with increased mental health symptomsCohort study analyzed dataStressful eventsTraumatic eventsMental health symptomsCross-sectional associationsLongitudinal analysisAged 2Years of follow-upStudy analyzed dataDevelopmental periodIndividuals aged 2Lifetime traumatic eventsHealth symptomsMain OutcomesLate adolescenceEmotional functioningCohort studyPrimary outcome
2022
Contingency management and pre-exposure prophylaxis adherence support services (CoMPASS): A hybrid type 1 effectiveness-implementation study to promote HIV risk reduction among people who inject drugs
Sung M, Viera A, Esserman D, Tong G, Davidson D, Aiudi S, Bailey G, Buchanan A, Buchelli M, Jenkins M, John B, Kolakowski J, Lame A, Murphy S, Porter E, Simone L, Paris M, Rash C, Edelman E. Contingency management and pre-exposure prophylaxis adherence support services (CoMPASS): A hybrid type 1 effectiveness-implementation study to promote HIV risk reduction among people who inject drugs. Contemporary Clinical Trials 2022, 125: 107037. PMID: 36460267, PMCID: PMC9918697, DOI: 10.1016/j.cct.2022.107037.Peer-Reviewed Original ResearchConceptsAdherence support servicesHIV risk reductionPrEP adherenceContingency managementHybrid type 1 effectiveness-implementation trialHIV pre-exposure prophylaxisEffectiveness-implementation studyPre-exposure prophylaxisEffectiveness-implementation trialOpioid use disorderStrengths-based case managementRisk reductionSupport servicesCommunity-based programsPrEP initiationPrimary outcomeWeek 12Clinical trialsHIV preventionUse disordersCM sessionsCase managementBlood spotsPWIDStudy design
2021
Sample size and power considerations for cluster randomized trials with count outcomes subject to right truncation
Li F, Tong G. Sample size and power considerations for cluster randomized trials with count outcomes subject to right truncation. Biometrical Journal 2021, 63: 1052-1071. PMID: 33751620, PMCID: PMC9132617, DOI: 10.1002/bimj.202000230.Peer-Reviewed Original ResearchConceptsCluster Randomized TrialPrimary outcomeGroup-based interventionRandomized trialsHealth StudySuch trialsPublic health studiesRight truncationTrialsOutcomesVector-borne diseasesCountSample size formulaAnalysis of CRTsPower calculationPopulation-level effectsSample sizeSize formulaClosed-form sample size formulaMarginal modeling approachMalariaDisease