2021
Individual and poly-substance use and condomless sex among HIV-uninfected adults reporting heterosexual sex in a multi-site cohort
Fredericksen RJ, Whitney BM, Trejo E, Nance RM, Fitzsimmons E, Altice FL, Carrico AW, Cleland CM, Del Rio C, Duerr A, El-Sadr WM, Kahana S, Kuo I, Mayer K, Mehta S, Ouellet LJ, Quan VM, Rich J, Seal DW, Springer S, Taxman F, Wechsberg W, Crane HM, Delaney JAC. Individual and poly-substance use and condomless sex among HIV-uninfected adults reporting heterosexual sex in a multi-site cohort. BMC Public Health 2021, 21: 2002. PMID: 34736425, PMCID: PMC8567631, DOI: 10.1186/s12889-021-12026-7.Peer-Reviewed Original ResearchConceptsLikelihood of CSRecent substance useHIV-negative partnersVaginal sexAnal sexSubstance useHIV-status unknown partnersMultivariable relative risk regressionExposure classificationType of sexHIV-negative adultsPooled effect estimatesPartner's HIV statusMulti-site cohortHigher likelihoodHeterosexual sexRelative risk regressionSingle substance usePoly-substance useHIV-negativeHIV statusRisk regressionPolysubstance useCannabis useSU exposureCorrelates of newly diagnosed HIV infection among cisgender women sex workers and transgender women sex workers in Greater Kuala Lumpur, Malaysia
Wang M, Lim SH, Gibson BA, Azwa I, Guadamuz TE, Altice FL, Kamarulzaman A, Wickersham JA. Correlates of newly diagnosed HIV infection among cisgender women sex workers and transgender women sex workers in Greater Kuala Lumpur, Malaysia. International Journal Of STD & AIDS 2021, 32: 609-619. PMID: 33752518, DOI: 10.1177/0956462420970417.Peer-Reviewed Original ResearchConceptsHIV infectionCisgender women sex workersWomen sex workersSex workersTransgender women sex workersMultivariable logistic regressionCondomless vaginal sexDetection of HIVUnique vulnerabilitiesHIV/Infection screeningHIVVaginal sexInfectionLogistic regressionEcstasy/MDMALower likelihoodLifetime useMost participantsKuala LumpurUnderstudied populationCorrelatesSex workers' experiencesPopulationChlamydia
2020
Integrating HIV pre‐exposure prophylaxis and harm reduction among men who have sex with men and transgender women to address intersecting harms associated with stimulant use: a modelling study
Bórquez A, Rich K, Farrell M, Degenhardt L, McKetin R, Tran LT, Cepeda J, Silva‐Santisteban A, Konda K, Cáceres CF, Kelly S, Altice FL, Martin NK. Integrating HIV pre‐exposure prophylaxis and harm reduction among men who have sex with men and transgender women to address intersecting harms associated with stimulant use: a modelling study. Journal Of The International AIDS Society 2020, 23: e25495. PMID: 32562365, PMCID: PMC7305413, DOI: 10.1002/jia2.25495.Peer-Reviewed Original ResearchConceptsMSM/transgender womenHIV pre-exposure prophylaxisPre-exposure prophylaxisNew HIV infectionsHIV infectionTransgender womenStimulant useCVD mortalityCVD deathHealth harmsIntegrated substance useMore HIV infectionsHigh HIV incidenceCardiovascular disease mortalityRandom allocationUnprotected anal sexRisk of suicideHIV incidenceHIV transmissionDisease mortalityHIV riskGlobal systematic reviewAnal sexReduction interventionsSystematic review
2017
Prevalence of Human Immunodeficiency Virus and Sexually Transmitted Infections Among Cisgender and Transgender Women Sex Workers in Greater Kuala Lumpur, Malaysia
Wickersham JA, Gibson BA, Bazazi AR, Pillai V, Pedersen CJ, Meyer JP, El-Bassel N, Mayer KH, Kamarulzaman A, Altice FL. Prevalence of Human Immunodeficiency Virus and Sexually Transmitted Infections Among Cisgender and Transgender Women Sex Workers in Greater Kuala Lumpur, Malaysia. Sexually Transmitted Diseases 2017, 44: 663-670. PMID: 28708696, PMCID: PMC5636657, DOI: 10.1097/olq.0000000000000662.Peer-Reviewed Original ResearchConceptsTransgender women sex workersHuman immunodeficiency virusInconsistent condom useCisgender women sex workersHIV prevalenceImmunodeficiency virusSex workersWomen sex workersDrug useCondom useHigh human immunodeficiency virusGlobal HIV prevalenceLast HIV testLifetime HIV testingPooled HIV prevalenceRespondent-driven samplingSTI prevalenceHIV testHIV burdenHIV testingMedian timeSTI preventionΧ testChlamydia trachomatisIndependent sample t-testActive syphilis and its association with HIV and sexual risk behaviours in a multicity sample of men who have sex with men and transgender women in Peru
Pizzicato LN, Vagenas P, Gonzales P, Lama JR, Pun M, Sanchez J, Altice FL. Active syphilis and its association with HIV and sexual risk behaviours in a multicity sample of men who have sex with men and transgender women in Peru. Sexual Health 2017, 14: 304-312. PMID: 28514994, DOI: 10.1071/sh16149.Peer-Reviewed Original ResearchConceptsActive syphilis infectionActive syphilisIndependent correlatesSyphilis infectionTransgender womenRisk factorsRecent sexRecent sex workSignificant independent correlatesReceptive anal intercourseFemale partnersRecent drug useSexual risk behaviorsTreatment of syphilisBackground SyphilisTGW populationPresent studySyphilis testingSyphilis screeningTransmissible infectionsSyphilis diagnosisHigh prevalenceStratified analysisSyphilis epidemicAge 35A Qualitative Assessment of Alcohol Consumption and Sexual Risk Behaviors Among Men Who Have Sex With Men and Transgender Women in Peru
Vagenas P, Brown SE, Clark JL, Konda KA, Lama JR, Sánchez J, Duerr AC, Altice FL. A Qualitative Assessment of Alcohol Consumption and Sexual Risk Behaviors Among Men Who Have Sex With Men and Transgender Women in Peru. Substance Use & Misuse 2017, 52: 831-839. PMID: 28426357, PMCID: PMC5595368, DOI: 10.1080/10826084.2016.1264968.Peer-Reviewed Original ResearchConceptsAlcohol use disorderMSM/transgender womenTransgender womenAlcohol consumptionRisk behaviorsRisky sexual behaviorConcentrated HIV epidemicMultiple sexual partnersSexual behaviorSexual risk behaviorsAntiretroviral therapyHIV infectionHIV incidenceHIV transmissionMedication adherenceProblematic drinkingSemi-structured focus groupsHIV epidemicHigh prevalencePharmacological interventionsUse disordersFocus groupsUnprotected sexAlcohol dependencePeruvian menCorrelates of willingness to initiate pre-exposure prophylaxis and anticipation of practicing safer drug- and sex-related behaviors among high-risk drug users on methadone treatment
Shrestha R, Karki P, Altice FL, Huedo-Medina TB, Meyer JP, Madden L, Copenhaver M. Correlates of willingness to initiate pre-exposure prophylaxis and anticipation of practicing safer drug- and sex-related behaviors among high-risk drug users on methadone treatment. Drug And Alcohol Dependence 2017, 173: 107-116. PMID: 28214391, PMCID: PMC5366273, DOI: 10.1016/j.drugalcdep.2016.12.023.Peer-Reviewed Original ResearchConceptsPre-exposure prophylaxisHIV risk reductionDrug injectionHIV riskRisk behaviorsHigh-risk drug usersHigh-risk PWUDOpioid-dependent personsHIV prevention approachesRecent risk behaviorsCross-sectional studyConsistent condom useHigh-risk behaviorsRisk reductionCorrelates of willingnessPrEP deliveryMethadone treatmentIndependent correlatesMethadone programsSafe drugElevated riskCasual partnersNeurocognitive impairmentDrug usersKey populations
2016
Willingness to Use Pre-Exposure Prophylaxis (PrEP): An Empirical Test of the Information-Motivation-Behavioral Skills (IMB) Model among High-Risk Drug Users in Treatment
Shrestha R, Altice FL, Huedo-Medina TB, Karki P, Copenhaver M. Willingness to Use Pre-Exposure Prophylaxis (PrEP): An Empirical Test of the Information-Motivation-Behavioral Skills (IMB) Model among High-Risk Drug Users in Treatment. AIDS And Behavior 2016, 21: 1299-1308. PMID: 27990587, PMCID: PMC5380590, DOI: 10.1007/s10461-016-1650-0.Peer-Reviewed Original ResearchConceptsHigh-risk PWUDBehavioral skills modelCommunity-based methadone maintenance treatmentPre-exposure prophylaxis trialsSex-related HIV risk behaviorsHigh-risk drug usersPre-exposure prophylaxisIMB modelMethadone maintenance treatmentEfficacy of PrEPUse of PrEPHIV risk behaviorsKey risk populationsHealth behavior changeHIV acquisitionProphylaxis trialsHIV infectionMaintenance treatmentHIV preventionRisk populationsDrug usersRisk behaviorsPrEPPWUDIntervention development
2013
A systematic review of alcohol use and sexual risk-taking in Latin America.
Vagenas P, Lama JR, Ludford KT, Gonzales P, Sanchez J, Altice FL. A systematic review of alcohol use and sexual risk-taking in Latin America. BULL PAN AM HEALTH ORGAN 2013, 34: 267-74. PMID: 24301738, PMCID: PMC3895327.Peer-Reviewed Original ResearchHigh rates of unprotected anal intercourse with regular and casual partners and associated risk factors in a sample of ethnic Malay men who have sex with men (MSM) in Penang, Malaysia
Lim SH, Bazazi AR, Sim C, Choo M, Altice FL, Kamarulzaman A. High rates of unprotected anal intercourse with regular and casual partners and associated risk factors in a sample of ethnic Malay men who have sex with men (MSM) in Penang, Malaysia. Sexually Transmitted Infections 2013, 89: 642. PMID: 23787168, DOI: 10.1136/sextrans-2012-050995.Peer-Reviewed Original ResearchConceptsUnprotected anal intercourseHIV testingCasual partnersAnal intercourseMalay menSexual partnersPrior HIV testingRapid HIV testingMultivariate logistic regressionRegular sexual partnersHIV risk behaviorsCasual sexual partnersFuture prevention effortsSexual negotiation skillsHIV seropositivityRisk factorsHIV preventionCasual partnershipsRegular partnersPrevention servicesMalay ethnicityRisk reduction practicesMultivariate analysisRisk behaviorsLogistic regression
2011
Attitudes toward opioid substitution therapy and pre-incarceration HIV transmission behaviors among HIV-infected prisoners in Malaysia: Implications for secondary prevention
Bachireddy C, Bazazi AR, Kavasery R, Govindasamy S, Kamarulzaman A, Altice FL. Attitudes toward opioid substitution therapy and pre-incarceration HIV transmission behaviors among HIV-infected prisoners in Malaysia: Implications for secondary prevention. Drug And Alcohol Dependence 2011, 116: 151-157. PMID: 21232882, PMCID: PMC3084892, DOI: 10.1016/j.drugalcdep.2010.12.001.Peer-Reviewed Original ResearchMeSH KeywordsAdultAttitudeComorbidityHealth Knowledge, Attitudes, PracticeHIV InfectionsHumansMalaysiaMaleMiddle AgedNeedle SharingOpiate Substitution TreatmentOpioid-Related DisordersPrisonersPrisonsRisk-TakingSecondary PreventionSexual BehaviorSubstance Abuse, IntravenousTime FactorsUnsafe SexYoung AdultConceptsOpioid substitution therapyHIV transmission behaviorsSubstitution therapyUnprotected sexSecondary HIV prevention effortsCommunity HIV transmissionInjection of buprenorphineSecondary HIV preventionInjection drug useHIV prevention effortsSterile injection equipmentOpioid injectionSecondary preventionOpioid dependenceHIV transmissionHIV preventionMale prisonersHIV riskInjection riskDrug useHIVCareful monitoringSexual riskBehavioral interventionsPrevention efforts