Quantifying cannabis: A field study of marijuana quantity estimation.

Prince, Mark A.; Pearson, Matthew R.

doi:10.1037/adb0000370

Cited by 87 publications

(65 citation statements)

References 42 publications

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“…Fifth, our sample reported considerably higher number of joints per week that prior work (Collins et al, 2007). It is unclear whether these differences are attributed to a higher-risk sample, or are an artifact of participants overestimating their marijuana use quantity (Prince, Conner, & Pearson, 2018). Sixth, we had a small (n = 18) sample who reported recent alcohol and marijuana use but not SAM use, precluding us from making comparisons between SAM, concurrent, and alcohol-only users.…”

Section: Discussionmentioning

confidence: 93%

Simultaneous Use of Alcohol and Marijuana: Patterns and Individual Differences

Linden-Carmichael

Stamates

Lau‐Barraco

2019

Substance Use & Misuse

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Background: Simultaneous alcohol and marijuana (SAM) use, or using alcohol and marijuana in such a way that their effects overlap, is associated with negative health and behavioral outcomes. Objectives: Our study sought to fill gaps in our knowledge on this emerging public health concern by comparing SAM users and alcohol-only users on individual-level factors and substance use outcomes as well as examining associations of SAM use frequency, within users. Methods: Participants were recruited through online postings. Our analytic sample consisted of 1,017 young adults (18-25 years) who reported past-month alcohol use. Most were male (67.8%), Caucasian (71.5%), and had attended at least some college (74.8%). Results: Past-year SAM users reported higher levels of sensation seeking and greater perceptions of their close friends' drinking behavior in comparison to alcohol-only users. SAM users reported heavier and more frequent alcohol use than alcohol-only users. Within past-year SAM users, 70% reported SAM use at least weekly. More frequent SAM use was associated with all alcohol use outcomes (e.g., weekly quantity, frequency, alcohol-related problems) and marijuana use outcomes (e.g., quantity, frequency, peak use) and higher drinking norms. Conclusions/Importance: It is clear that SAM users are a vulnerable sub-population of young adult drinkers. SAM users are differentiated from alcohol-only users in terms of their personality characteristics and perceptions of peer groups' drinking. SAM users and more frequent users are also at heightened risk for substance use outcomes. Prevention and intervention efforts targeting high-risk drinking may benefit from also assessing whether they simultaneously use alcohol and marijuana.

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Section: Discussionmentioning

confidence: 93%

Simultaneous Use of Alcohol and Marijuana: Patterns and Individual Differences

Linden-Carmichael

Stamates

Lau‐Barraco

2019

Substance Use & Misuse

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“…In light of state‐by‐state changes in recreational and medicinal marijuana legislature, it is becoming increasingly important to identify best practices for measuring marijuana use quantity. There are many challenges to assessing marijuana use quantity given overestimations in self‐reported use (Prince et al., ) and differences in level of high achieved with different routes of administration (Cooper and Haney, ; Spindle et al., ); thus, more work is needed in this area. Fourth, our study did not measure simultaneous use of alcohol and marijuana.…”

Section: Discussionmentioning

confidence: 99%

Are Co‐users of Alcohol and Marijuana More Willing to Experience Consequences From Drinking? A Longitudinal Examination Among First‐Year College Students

Linden-Carmichael

Mallett

Sell

et al. 2019

Alcoholism Clin & Exp Res

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Background: Alcohol and marijuana co-users are at heightened vulnerability for experiencing a variety of negative alcohol use outcomes including heavier alcohol use and driving under the influence. The current study explored willingness to experience negative consequences as a potential factor underlying the association between co-user status and negative consequences in an effort to guide future intervention work. From a longitudinal study of first-year college students, we examined willingness to experience consequences at Time 2 as a mediator of co-user status at Time 1 and experience of negative consequences at Time 3.Methods: First-year college student drinkers (n = 1,914) at a large university completed surveys in the fall and spring of their freshman year and the fall of their sophomore year.Results: Alcohol and marijuana co-users reported higher willingness to experience consequences than alcohol-only users. Willingness to experience consequences partially explained the association between alcohol and marijuana couse and consequences.Conclusions: The current study was the first to compare co-users of alcohol and marijuana to alcohol-only users on willingness to experience consequences, and examine the role of willingness as a mediator between co-user status and consequences experienced. Co-users were more willing to experience adverse effects from drinking, in turn predicting more consequences. Intervention work targeting consequences may be less effective for co-users; thus, additional work is needed to identify other potential mechanisms for change for this at-risk group.

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“…Literature suggests patients tend to underreport cannabis use, and inaccurately estimate the quantity of cannabis consumed. [92][93][94][95] The NHANES surveys also lack data on the potency, specific cannabis strain, and lifetime cannabis use of individuals. The survey also presents insufficient data on the characterization of tinnitus; no data on the severity of tinnitus and the impact on quality of life were assessed, making comparisons between participants difficult.…”

Section: Survey and Clinical Studiesmentioning

confidence: 99%

“…A major limitation of the study is that both key variables examined, cannabis use and presence of tinnitus, are self‐reported variables and may be subject to recall bias. Literature suggests patients tend to underreport cannabis use, and inaccurately estimate the quantity of cannabis consumed 92‐95 . The NHANES surveys also lack data on the potency, specific cannabis strain, and lifetime cannabis use of individuals.…”

Section: Survey and Clinical Studiesmentioning

confidence: 99%

Does cannabis alleviate tinnitus? A review of the current literature

Narwani

Bourdillon

Nalamada

et al. 2020

Laryngoscope Investig Oto

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Objective(s): Endocannabinoid pathways have been proposed to affect the underlying pathophysiology of tinnitus. The aim of this study is to evaluate the scope and findings of existing literature on the relationship between cannabis and cannabinoid pathways and tinnitus. Methods: We conducted a review of animal, clinical and survey studies investigating the relationship between the use of cannabis-derived agents and tinnitus. Using pertinent keywords and MeSH terms on PubMed, relevant studies were identified, yielding four animal studies, two large cross-sectional survey studies, one clinical crossover study, and one case report. Results: Animal studies revealed that cannabinoid receptor expression in the cochlear nucleus varied with tinnitus symptomatology and the use of cannabinoid agents either increased or had no effect on tinnitus-related behavior. Survey studies yielded conflicting results between cannabis use and tinnitus in the general population. Clinical data is largely lacking, although a small cohort study showed a dose-dependent relationship between tetrahydrocannabinol consumption and frequency of tinnitus episodes in patients receiving treatment for cancer. Conclusion: While animal studies have revealed that cannabinoid receptors likely have a role in modulating auditory signaling, there is no compelling data either from animal or human studies for the use of cannabinoids to alleviate tinnitus. Further research is necessary to elucidate their precise role to guide development of therapeutic interventions.

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Quantifying cannabis: A field study of marijuana quantity estimation.

Cited by 87 publications

References 42 publications

Simultaneous Use of Alcohol and Marijuana: Patterns and Individual Differences

Simultaneous Use of Alcohol and Marijuana: Patterns and Individual Differences

Are Co‐users of Alcohol and Marijuana More Willing to Experience Consequences From Drinking? A Longitudinal Examination Among First‐Year College Students

Does cannabis alleviate tinnitus? A review of the current literature

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