2002
High-risk behaviors associated with transition from illicit non-injection to injection drug use among adolescent and young adult drug users: a case-control study
Fuller C, Vlahov D, Ompad D, Shah N, Arria A, Strathdee S. High-risk behaviors associated with transition from illicit non-injection to injection drug use among adolescent and young adult drug users: a case-control study. Drug And Alcohol Dependence 2002, 66: 189-198. PMID: 11906806, DOI: 10.1016/s0376-8716(01)00200-9.Peer-Reviewed Original ResearchConceptsInjection drug usersInjection drug useAge-matched case-control analysisDrug usersDrug useBlood-borne infectionsAge-matched personsCase-control studyConditional logistic regressionCase-control analysisHigh-risk behaviorsNon-injection heroinCharacteristics of personsHIV seroprevalenceCohort studyInjection useAdult drug usersLogistic regressionPrevention effortsSame calendar timeYoung adult drug usersCalendar timePrior yearAfrican AmericansBaseline
2001
Sex Differences in Risk Factors for HIV Seroconversion Among Injection Drug Users: A 10-Year Perspective
Strathdee S, Galai N, Safaiean M, Celentano D, Vlahov D, Johnson L, Nelson K. Sex Differences in Risk Factors for HIV Seroconversion Among Injection Drug Users: A 10-Year Perspective. JAMA Internal Medicine 2001, 161: 1281-1288. PMID: 11371255, DOI: 10.1001/archinte.161.10.1281.Peer-Reviewed Original ResearchConceptsInjection drug usersIncidence of HIVHIV seroconversionRisk factorsProspective studyDrug usersHigh-risk heterosexual activityHuman immunodeficiency virus interventionsHIV-negative injection drug usersHuman immunodeficiency virus (HIV) infectionFemale injection drug usersImmunodeficiency virus infectionInjection drug useDrug-related risksHomosexual activityTime-dependent covariatesHIV testMedian agePerson yearsDaily injectionsNeedle sharingCocaine injectionHIV riskVirus infectionSeroconversionMultiple Access to Sterile Syringes for Injection Drug Users: Vending Machines, Needle Exchange Programs and Legal Pharmacy Sales in Marseille, France
Moatti J, Vlahov D, Feroni I, Perrin V, Obadia Y. Multiple Access to Sterile Syringes for Injection Drug Users: Vending Machines, Needle Exchange Programs and Legal Pharmacy Sales in Marseille, France. European Addiction Research 2001, 7: 40-45. PMID: 11316925, DOI: 10.1159/000050713.Peer-Reviewed Original ResearchConceptsInjection drug usersNeedle exchange programsSterile syringesNEP usersNew syringesPharmacy salesCharacteristics of IDUsDrug usersPrevention of HIVDrug use characteristicsHIV prevention programsSelf-administered questionnaireMethadone programsHeroin injectorsUseful adjunctPrevention programsInfectious diseasesProgram utilizationHIVSyringesPharmacyExchange programsQuestionnaireBuprenorphineDisease
1999
Self-Reported Bacterial Infections Among Women with or at Risk for Human Immunodeficiency Virus Infection
Flanigan T, Hogan J, Smith D, Schoenbaum E, Vlahov D, Schuman P, Mayer K. Self-Reported Bacterial Infections Among Women with or at Risk for Human Immunodeficiency Virus Infection. Clinical Infectious Diseases 1999, 29: 608-612. PMID: 10530455, DOI: 10.1086/598641.Peer-Reviewed Original ResearchConceptsHuman immunodeficiency virus (HIV) infectionCD4 cell countImmunodeficiency virus infectionBacterial infectionsRecent pneumoniaVirus infectionCell countHIV-negative womenHIV-seropositive womenUrinary tract infectionInjection drug useLogistic regression analysisSelf-reported pneumoniaCross-sectional analysisSeronegative womenTract infectionsHIV infectionDrug useLifetime historyInfectionPneumoniaMajor causeWomenRegression analysisCell categoriesCell-associated infectious HIV-1 viral load as a predictor of clinical progression and survival among HIV-1 infected injection drug users and homosexual men
Lyles C, Graham N, Astemborski J, Vlahov D, Margolick J, Saah A, Farzadegan H. Cell-associated infectious HIV-1 viral load as a predictor of clinical progression and survival among HIV-1 infected injection drug users and homosexual men. European Journal Of Epidemiology 1999, 15: 99-108. PMID: 10204638, DOI: 10.1023/a:1007556327269.Peer-Reviewed Original ResearchMeSH KeywordsAcquired Immunodeficiency SyndromeAdultAIDS-Related Opportunistic InfectionsBacterial InfectionsCause of DeathCD4 Lymphocyte CountCohort StudiesConfidence IntervalsDisease ProgressionFemaleFollow-Up StudiesHIV InfectionsHIV-1Homosexuality, MaleHumansImmunocompromised HostLeukocytes, MononuclearMalePredictive Value of TestsProportional Hazards ModelsRisk FactorsSubstance Abuse, IntravenousSurvival AnalysisSurvival RateViral LoadViremiaConceptsHIV-1 viral loadViral loadHomosexual menRisk groupsHIV-1Relative hazardDrug usersPeripheral blood mononuclear cellsMicroculture techniqueBlood mononuclear cellsInjection drug usersHIV-1 progressionInitial CD4Clinical progressionMononuclear cellsNegative culturesPredictive valueSurvival analysisBacterial infectionsTotal participantsAIDSProgressionInfectious unitsCells/Death
1997
Long-term Perspective on the Prevalent-Cohort Biases in Studies of Human Immunodeficiency Virus Progression
Alcabes P, Pezzotti P, Phillips A, Rezza G, Vlahov D. Long-term Perspective on the Prevalent-Cohort Biases in Studies of Human Immunodeficiency Virus Progression. American Journal Of Epidemiology 1997, 146: 543-551. PMID: 9326431, DOI: 10.1093/oxfordjournals.aje.a009312.Peer-Reviewed Original ResearchConceptsPSP cohortRelative riskSeroincident cohortHIV infectionPrevalent cohortAIDS riskAcquired immunodeficiency syndrome (AIDS) diagnosisHuman immunodeficiency virus (HIV) infectionDisease Control case definitionHuman immunodeficiency virus (HIV) progressionImmunodeficiency syndrome diagnosisImmunodeficiency virus infectionPrevalent HIV infectionProportional hazards regressionAmbulatory care clinicsRate of progressionStudies of cohortsItalian National RegistryAIDS-free subjectsObserved relative riskSeroconversion datesHIV seroconversionCare clinicsHazards regressionNational registry
1995
Incidence and Risk Factors for Human T-Lymphotropic Virus Type II Seroconversion Among Injecting Drug Users in Baltimore, Maryland, U.S.A
Vlahov D, Khabbaz R, Cohn S, Galai N, Taylor E, Kaplan J. Incidence and Risk Factors for Human T-Lymphotropic Virus Type II Seroconversion Among Injecting Drug Users in Baltimore, Maryland, U.S.A. JAIDS Journal Of Acquired Immune Deficiency Syndromes 1995, 9: 89-96. PMID: 7712239, DOI: 10.1097/00042560-199505010-00013.Peer-Reviewed Original ResearchConceptsRisk factorsDrug usersEnzyme immunoassayWestern blotHuman T-lymphotropic virusNeedle-sharing practicesRisk factor analysisT-lymphotropic virusMedian lag timeCase-control designALIVE studyRecent serumSeronegative IDUsStudy entryBaseline historyIncidence rateSeroconversionPositive casesSex partnersIDUsHTLVCalendar timeMonthsIncidenceBaseline
1994
Low power? Use two-dimensional confidence regions as a graphical method for depicting uncertainty
Chilcoat H, Muñoz A, Vlahov D, Anthony J. Low power? Use two-dimensional confidence regions as a graphical method for depicting uncertainty. Drug And Alcohol Dependence 1994, 36: 39-48. PMID: 7988358, DOI: 10.1016/0376-8716(94)90008-6.Peer-Reviewed Original ResearchMaturity of human immunodeficiency virus infection and incubation period of acquired immunodeficiency syndrome in injecting drug users
Alcabes P, Muñoz A, Vlahov D, Friedland G. Maturity of human immunodeficiency virus infection and incubation period of acquired immunodeficiency syndrome in injecting drug users. Annals Of Epidemiology 1994, 4: 17-26. PMID: 7911376, DOI: 10.1016/1047-2797(94)90038-8.Peer-Reviewed Original ResearchMeSH KeywordsAcquired Immunodeficiency SyndromeBaltimoreCD4-Positive T-LymphocytesCohort StudiesConfidence IntervalsHIV InfectionsHIV SeroprevalenceHomosexualityHumansIncidenceLeukocyte CountLife TablesMaleModels, StatisticalNew York CityPlatelet CountRegression AnalysisSubstance Abuse, IntravenousSurvival RateTime FactorsConceptsHIV infectionDrug usersImmunodeficiency syndromeMedian timeCombined cohortHomosexual menHuman immunodeficiency virus (HIV) infectionHuman immunodeficiency virus (HIV) epidemicPercent of CD4Immunodeficiency virus infectionIncident HIV infectionProduct-limit methodMarkers of maturityHIV incubation distributionsPlatelet countVirus infectionLarge cohortSeroconversionCohortInfectionConfidence intervalsIncubation distributionAIDSVirus epidemicPopulation groups
1992
Cancer of the Pancreas and Drinking Water: A Population-based Case-Control Study in Washington County, Maryland
IJsselmuiden C, Gaydos C, Feighner B, Novakoski W, Serwadda D, Caris L, Vlahov D, Comstock G. Cancer of the Pancreas and Drinking Water: A Population-based Case-Control Study in Washington County, Maryland. American Journal Of Epidemiology 1992, 136: 836-842. PMID: 1442749, DOI: 10.1093/aje/136.7.836.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedCase-Control StudiesChlorineConfidence IntervalsFemaleHumansMaleMarylandMiddle AgedOdds RatioPancreatic NeoplasmsWater Supply