• Author: Mark Olfson
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Cannabis legalization and cannabis use disorder by sex in Veterans Health Administration patients, 2005-2019

Abstract: BACKGROUND: Understanding sex differences in the effects of cannabis legalization and increasing risk for cannabis use disorder (CUD) is important. We hypothesized that …

Cannabis legalization and cannabis use disorder by sex in Veterans Health Administration patients, 2005–2019

Abstract: Background: Understanding sex differences in the effects of cannabis legalization and increasing risk for cannabis use disorder (CUD) is important. We hypothesized that …

Cannabis legalization and cannabis use disorder in United States Veterans Health Administration patients with and without psychiatric disorders, 2005-2022: A repeated cross-sectional study

Abstract: Background We investigated whether the associations of state medical and recreational cannabis legalization (MCL, RCL enactment) with increasing prevalence of Cannabis …

Cannabis legalization and opioid use disorder in Veterans Health Administration patients

Abstract: IMPORTANCE: In the context of the US opioid crisis, factors associated with the prevalence of opioid use disorder (OUD) must be identified to aid prevention and …

State cannabis legalization and opioid use disorder in the US Veterans Health Administration, 2005 to 2019

Abstract: Aim: Cannabis use is legal in many U.S. states, and opioids may be substituted for cannabis. Fewer opioids may reduce its consequences, including opioid use disorder …

Trends in opioid use disorder in the Veterans Health Administration, 2005-2022

Abstract: Importance: Given the personal and social burdens of opioid use disorder (OUD), understanding time trends in OUD prevalence in large patient populations is key to …

Cannabis use and cannabis use disorder among U.S. adults with psychiatric disorders: 2001-2002 and 2012-2013

Abstract: Background: Rates of cannabis use disorder (CUD) have increased disproportionately among Veterans Administration (VA) patients with psychiatric disorders compared to …

Association of cannabis legalization with cannabis positive drug screening in US Veterans

Abstract: BACKGROUND: Although cannabis legalization is associated with increases in self-report cannabis use, biological measures of cannabis use are needed to address potential …

Trends in prevalence of cannabis use disorder among U.S. Veterans with and without psychiatric disorders between 2005 and 2019

Abstract: OBJECTIVE: Cannabis use disorder diagnoses are increasing among U.S. adults and are more prevalent among people with comorbid psychiatric disorders. Recent changes in …

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

Abstract: Background: Cannabis use disorder is associated with considerable comorbidity and impairment in functioning, and prevalence is increasing among adults with chronic pain. …

Increasing risk of cannabis use disorder among U.S. veterans with chronic pain: 2005-2019

Abstract: In the United States, cannabis is increasingly used to manage chronic pain. Veterans Health Administration (VHA) patients are disproportionately affected by pain and may …

Trends in cannabis-positive urine toxicology test results: US Veterans Health Administration emergency department patients, 2008 to 2019

Abstract: Objectives This study aimed to examine trends in cannabis-positive urine drug screens (UDSs) among emergency department (ED) patients from 2008 to 2019 using data from …