2025
Cannabis Legalization and Opioid Use Disorder in Veterans Health Administration Patients
Mannes Z, Wall M, Alschuler D, Malte C, Olfson M, Livne O, Fink D, Keyhani S, Keyes K, Martins S, Cerdá M, Sacco D, Gutkind S, Maynard C, Sherman S, Saxon A, Hasin D. Cannabis Legalization and Opioid Use Disorder in Veterans Health Administration Patients. JAMA Health Forum 2025, 6: e251369. PMID: 40512510, PMCID: PMC12166489, DOI: 10.1001/jamahealthforum.2025.1369.Peer-Reviewed Original ResearchConceptsVeterans Health AdministrationVeterans Health Administration patientsMedical cannabis lawsOpioid use disorderPrevalence of opioid use disorderClassification of DiseasesRecreational cannabis lawsChronic painVeterans Health Administration electronic health recordClinical ModificationConsistent with overall findingsState medical cannabis lawsInternational Statistical Classification of DiseasesReceipt of prescription opioidsStatistical Classification of DiseasesElectronic health recordsInternational Classification of DiseasesNon-Hispanic whitesOpioid use disorder diagnosisOpioid use disorder prevalenceInternational Statistical ClassificationDifference-in-differences analysisCannabis lawsUse disorderBurden of opioid use disorderCannabis legalization and increasing cannabis use in the United States: Data from urine toxicology testing in emergency room patients
Fink D, Samples H, Malte C, Olfson M, Wall M, Alschuler D, Simpson T, Mannes Z, Saxon A, Hasin D. Cannabis legalization and increasing cannabis use in the United States: Data from urine toxicology testing in emergency room patients. International Journal Of Drug Policy 2025, 138: 104765. PMID: 40058102, PMCID: PMC11967342, DOI: 10.1016/j.drugpo.2025.104765.Peer-Reviewed Original ResearchConceptsUrine drug screensCannabis use disorderMedical cannabis lawsVeterans Health AdministrationCannabis useRecreational cannabis lawsRates of cannabis use disordersCannabis lawsEmergency departmentIndicators of cannabis useUrine toxicology testsIncreased cannabis useDifference-in-differences analysisLegalized cannabis useEmergency room patientsSelf-reported dataBinomial regression modelsED visitsED patientsHealth AdministrationCannabis involvementPatient samplesPatientsUse disorderCannabis
2023
Chronic pain, cannabis legalisation, and cannabis use disorder among patients in the US Veterans Health Administration system, 2005 to 2019: a repeated, cross-sectional study
Hasin D, Wall M, Alschuler D, Mannes Z, Malte C, Olfson M, Keyes K, Gradus J, Cerdá M, Maynard C, Keyhani S, Martins S, Fink D, Livne O, McDowell Y, Sherman S, Saxon A. Chronic pain, cannabis legalisation, and cannabis use disorder among patients in the US Veterans Health Administration system, 2005 to 2019: a repeated, cross-sectional study. The Lancet Psychiatry 2023, 10: 877-886. PMID: 37837985, PMCID: PMC10627060, DOI: 10.1016/s2215-0366(23)00268-7.Peer-Reviewed Original ResearchConceptsVeterans Health AdministrationMedical cannabis lawsRecreational cannabis lawsCannabis use disorder prevalenceDisorder prevalenceChronic painCannabis use disorderVA Centers of ExcellenceUse disorderUS Veterans Health AdministrationVeterans Health Administration systemPresence of chronic painMental health visitsElectronic health record datasetAbsolute increaseHealth Administration systemDifference-in-differences analysisCross-sectional studyPainful medical conditionsPalliative careBinomial regression modelsPrimary careRisk of cannabis use disorderOlder age groupsHealth visitsState Cannabis Legalization and Cannabis Use Disorder in the US Veterans Health Administration, 2005 to 2019
Hasin D, Wall M, Choi C, Alschuler D, Malte C, Olfson M, Keyes K, Gradus J, Cerdá M, Maynard C, Keyhani S, Martins S, Fink D, Livne O, Mannes Z, Sherman S, Saxon A. State Cannabis Legalization and Cannabis Use Disorder in the US Veterans Health Administration, 2005 to 2019. JAMA Psychiatry 2023, 80: 380-388. PMID: 36857036, PMCID: PMC9979011, DOI: 10.1001/jamapsychiatry.2023.0019.Peer-Reviewed Original ResearchConceptsVeterans Health AdministrationMedical cannabis lawsRecreational cannabis lawsHealth AdministrationVeterans Health Administration primary careUS Veterans Health AdministrationMental health visitsElectronic health recordsInternational Classification of DiseasesCannabis use disorderCannabis use disorder diagnosesAbsolute increaseAge groupsGeneral population studiesMedian household incomeDifference-in-differences analysisClassification of DiseasesCannabis lawsCannabis use disorder prevalenceUse disorderHospice/palliative careBinomial regression modelsPrimary careHealth visitsPatient age groupsChanges in Opioid and Benzodiazepine Poisoning Deaths After Cannabis Legalization in the US: A County-level Analysis, 2002–2020
Castillo-Carniglia A, Rivera-Aguirre A, Santaella-Tenorio J, Fink D, Crystal S, Ponicki W, Gruenewald P, Martins S, Keyes K, Cerdá M. Changes in Opioid and Benzodiazepine Poisoning Deaths After Cannabis Legalization in the US: A County-level Analysis, 2002–2020. Epidemiology 2023, 34: 467-475. PMID: 36943813, PMCID: PMC10712490, DOI: 10.1097/ede.0000000000001609.Peer-Reviewed Original ResearchConceptsCannabis legalizationCannabis lawsRecreational cannabis lawsAvailability of cannabisMedical cannabis legalizationMedical cannabis lawsBenzodiazepine useBenzodiazepinesCannabisCannabis accessAssociated with higher ratesAssociated with increased deathAssociated with lower ratesOpioidSemi-synthetic opioidAssociated with fewer deathsSecondary analysisReducing opioidsCounty-level analysisAssociated with consistent reductionsPoisoning deathsLawRecreational dispensariesLegalitySynthetic opioidsAdult use of highly-potent Δ9-THC cannabis concentrate products by U.S. state cannabis legalization status, 2021
Hasin D, Borodovsky J, Shmulewitz D, Walsh C, Struble C, Livne O, Habib M, Fink D, Aharonovich E, Budney A. Adult use of highly-potent Δ9-THC cannabis concentrate products by U.S. state cannabis legalization status, 2021. Addictive Behaviors 2023, 140: 107617. PMID: 36736229, PMCID: PMC9930475, DOI: 10.1016/j.addbeh.2023.107617.Peer-Reviewed Original ResearchConceptsCannabis concentratesCannabis lawsDelta-9-tetrahydrocannabinolCannabis-related harmsFactors associated with useCannabis legalization statusMedical cannabis lawsCannabis usersCannabis useRecreational cannabis lawsAssociated with greater likelihoodOdds ratioCannabisCannabis productsLogistic regressionAdult useGreater likelihoodPatient useConcentrate useOddsLegal statusParticipantsAverage potency
2021
Use of highly-potent cannabis concentrate products: More common in U.S. states with recreational or medical cannabis laws
Hasin D, Borodovsky J, Shmulewitz D, Walsh C, Livne O, Struble C, Aharonovich E, Fink D, Budney A. Use of highly-potent cannabis concentrate products: More common in U.S. states with recreational or medical cannabis laws. Drug And Alcohol Dependence 2021, 229: 109159. PMID: 34844095, PMCID: PMC8667084, DOI: 10.1016/j.drugalcdep.2021.109159.Peer-Reviewed Original ResearchConceptsMedical cannabis lawsRecreational cannabis lawsPast-month cannabis useCannabis lawsHigh-potency cannabis productsMCL statesMultivariate logistic regression modelConfidence intervalsCannabis-related harmsCannabis legalization statusCannabis usersCannabis useLogistic regression modelsLow-potencyOdds ratioHigh-potencyCannabis concentratesCannabisU.S. statesCannabis productsCannabis legalizationOddsState of residencePain, cannabis use, and physical and mental health indicators among veterans and nonveterans: results from the National Epidemiologic Survey on Alcohol and Related Conditions-III
Enkema M, Hasin D, Browne K, Stohl M, Shmulewitz D, Fink D, Olfson M, Martins S, Bohnert K, Sherman S, Cerda M, Wall M, Aharonovich E, Keyhani S, Saxon A. Pain, cannabis use, and physical and mental health indicators among veterans and nonveterans: results from the National Epidemiologic Survey on Alcohol and Related Conditions-III. Pain 2021, 163: 267-273. PMID: 34108436, PMCID: PMC8985055, DOI: 10.1097/j.pain.0000000000002345.Peer-Reviewed Original ResearchConceptsCannabis use disorderRecent painMedical cannabis lawsPrevalence differencesNonmedical cannabis useNational Epidemiologic SurveyCannabis useChronic painMental health indicatorsPhysical health difficultiesConditions-IIIPrevalence of cannabis use disorderDSM-5 cannabis use disorderEpidemiological surveyPrevalence of frequent cannabis useFrequent cannabis useMCL statesRelated Conditions-IIIHealth difficultiesPhysical healthMental healthHealth indicatorsCannabis variablesVeterans' reportsVeteransState Medical Cannabis Laws Associated With Reduction in Opioid Prescriptions by Orthopaedic Surgeons in Medicare Part D Cohort.
Lopez C, Boddapati V, Jobin C, Hickernell T. State Medical Cannabis Laws Associated With Reduction in Opioid Prescriptions by Orthopaedic Surgeons in Medicare Part D Cohort. Journal Of The American Academy Of Orthopaedic Surgeons 2021, 29: e188-e197. PMID: 32404683, DOI: 10.5435/jaaos-d-19-00767.Peer-Reviewed Original ResearchConceptsMedical cannabis lawsMedicare Part D patientsState medical cannabis lawsTotal daily dosesDaily dosesOpioid medicationsOpioid prescriptionsOrthopaedic surgeonsOpioid prescribingD patientsSignificant reductionPopulation-based ecological studyTotal opioid prescriptionsCannabis lawsAnalgesic optionsAnalgesic alternativeOpioid useHigh prescribersOrthopedic patientsPatient cohortD cohortSignificant associationPatient accessMedicationsOpioids
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