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