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Browse normalized, publication-ready research with direct links to its evidence and source.
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Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
Loading articles data…
Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
16 articles
Newest firstBackground Predicting progression from substance use to substance use disorder (SUD) is challenging, particularly for participants with cannabis and stimulant use who follow distinct risk trajectories. Machine learning enables integration of demographic, behavioral, wearable-derived, and social determinants of health (SDoH) data, yet few studies have compared linear and non-linear approaches in large, diverse popu…
Open article record in new tab ↗Introduction Tobacco use is disproportionately prevalent among people living with HIV (PWH) and is a significant contributor to morbidity and mortality in this population. Reaching communities of PWH to facilitate smoking cessation is challenging. Digital Therapeutics (DTx) can facilitate widespread implementation and adoption of smoking cessation treatments for PWH. Methods We compared the feasibility and accepta…
Background Alcohol and cannabis are commonly used substances for young adults, and person-level co-use (i.e., concurrent or simultaneous use of both) is associated with increased likelihood of experiencing positive and negative alcohol-related consequences. However, findings regarding within-person effects (i.e.,day-level) co-use on consequences are mixed, possibly due to inconsistency in including alcohol quantit…
Background With the rising prevalence of daily cannabis use in the U.S., more individuals may seek treatment for adverse outcomes (e.g., cannabis use disorder) arising from frequent cannabis use. Adaptive interventions leverage self-reported motives for cannabis use to develop personalized support. Research has demonstrated that these motives can be collected on a yearly, monthly, or daily basis, and strongly pred…
Open article record in new tab ↗Background Sleep-promotion is one of the most common reasons people use cannabis. Previous studies, primarily among young adults, suggest that cannabis use has negligible day-level effects on sleep but may attenuate alcohol's negative effects when both substances are used. Studies among middle-aged/older adults are needed to determine the generalizability of these day-level associations. Methods This preregistered…
Open article record in new tab ↗Background Early life stress (ELS) increases the risk of substance use disorder (SUD) in adulthood. The pathway from ELS to SUD is hypothesized to be influenced by sex. We examine the impact of ELS on adolescent first substance use, a common precursor to adult SUDs, and test for sex differences in the relationship between ELS and risk of first use of alcohol, nicotine, and marijuana. Methods Individuals from the A…
Background:Approximately 30 % of people who use tobacco also use cannabis, and rates of co-use are rising. Relative to people who use tobacco alone (TO), individuals who co-use tobacco and cannabis (TC) experience greater difficulty with tobacco cessation, yet mechanisms underlying this phenomenon remain unexplored. Leveraging data from a multi-site, double-blind clinical trial for tobacco cessation, we compared t…
Open article record in new tab ↗Background With increasing legalization and rising potency of cannabis products, cannabis use disorder (CUD) is a growing public health concern, particularly among young adults, who have the highest rates of CUD. While substance use is known to be associated with the oral microbiome, the impact of CUD remains understudied. Given the oral microbiome's role in overall health, identifying microbial signatures associa…
Open article record in new tab ↗Alcohol use is common in the U.S., with 10.9 % of adults meeting criteria for alcohol use disorder (AUD) in 2023. Co-use of alcohol and cannabis is also widespread and is associated with increased alcohol-related harms. Few studies have examined how different co-use patterns, such as simultaneous (same day use with overlapping effects) versus concurrent (same day use without overlapping effects) use affect alcohol…
Open article record in new tab ↗Background There is little research examining perceptions of cannabis use risk to mental health in countries with differing cannabis regulations. This study therefore examines such perceptions among youth between 2017 and 2021 in Canada (non-medical cannabis legalized in October 2018), England (highly-restricted medical cannabis legalized November 2018), and the US (non-medical cannabis legal in some states). Meth…
Open article record in new tab ↗Background:Polysubstance use among people who misuse opioids (PWMO) is highly prevalent, but understudied. We defined, estimated, and analyzed national polysubstance use patterns among PWMO using National Household Survey on Drug Use and Health data (2017–2019).Methods:We obtained estimates of past-month patterns of polydrug use using cluster analysis and latent class/profile analysis. We considered misuse of pres…
Open article record in new tab ↗Background Justice-involved youth use cannabis at higher rates than their same-aged peers increasing likelihood of adverse behavioral health consequences and continued legal involvement. This study examined individual level predictors of early onset use cannabis use (<13 years of age) and cannabis use initiation in the 12 months following first court contact. Methods Participants were 391 first-time justice-involv…
Open article record in new tab ↗Background Although studies have examined the association between tobacco and cannabis use in adolescence with subsequent cognitive functioning, study designs are usually not able to distinguish correlation from causation. Methods Separate patterns of tobacco and cannabis use were derived using longitudinal latent class analysis based on measures assessed on five occasions from age 13-18 in a large UK population c…
Open article record in new tab ↗BACKGROUND: This study assesses differences in social norms towards smoking and vaping among youth across countries (England, Canada, US) and smoking and vaping status. METHODS: Data are from the 2017 ITC Youth Tobacco and Vaping Survey, among youth age 16-19 in England (N = 3444), Canada (N = 3327), and US (N = 3509). Prevalence of friend smoking, friend vaping, peer approval of smoking, and peer approval of vapi…
Open article record in new tab ↗BACKGROUND: The majority of the U.S. healthcare resources are utilized by a small population characterized as high-risk, high-need persons with complex care needs (e.g., adults with multiple chronic conditions). Substance use disorders (SUDs) and mental health disorders (MHDs) are a driver of poor health and additional healthcare costs, but they are understudied among high-need patients. OBJECTIVE: We examine the…
Open article record in new tab ↗Highlights•We studied the extent that cigarette smoking predicts level of cannabis addiction.•We tested whether cigarette smoking mediates the effect of cannabis use on dependence.•We interviewed 298 cannabis and tobacco users, of which 65 were followed up.•Cigarette smoking accounted for 29% of the variance in cannabis dependence.•Cigarette smoking mediated the relationship between cannabis use and dependence. Ai…