Is the Sum Greater than its Parts? Variations in Substance-Related Consequences by Conjoint Alcohol-Marijuana Use Patterns

Cummings, Courtenay; Beard, Charlotte L.; Habarth, Janice; Weaver, Charlotte A.; Haas, Amie L.

doi:10.1080/02791072.2019.1599473

Cited by 31 publications

(36 citation statements)

References 54 publications

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“…Using both alcohol and cannabis has been associated with more serious consequences, (greater than either substance alone; Cummings et al, 2019;Sokolovsky et al, 2020). In a similar fashion, our results show that alcohol/cannabis co-use, but not separate use, showed sibling interdependence with unprotected sex, such that siblings' and referred adolescents' couse was associated with referred adolescents' unprotected sex.…”

Section: Discussionsupporting

confidence: 73%

“…Additionally, college students' self-reports indicated that using both alcohol and cannabis (either simultaneously or overlapping time periods) was associated with risky sex, compared to alcohol use alone (Cummings, Beard, Habarth, Weaver, & Haas, 2019). Using both cannabis and alcohol at a high rate in adolescence has also been associated with a significantly higher rate of teen pregnancy, compared to moderate alcohol use alone or no use (Green et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Adolescent sibling associations among alcohol, cannabis, and sexual risk behavior: A test of interdependence

Thomas¹,

Micalizzi²,

Meisel³

et al. 2021

Preprint

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Although siblings are conceptualized as a salient social influence during adolescence, few studies have examined how adolescent siblings influence each other’s substance use and risky sexual behavior. This study’s objective was to investigate the influence of alcohol use days, cannabis use days, and cannabis and alcohol co-use days on the sexual risk behavior of siblings while accounting for dyadic influence. At the baseline visit for a randomized controlled trial for adolescents referred due to parents’ concerns about their substance use (“referred adolescents”; n=99; Mage=15.95), we assessed alcohol and cannabis use days as well as sexual risk behavior of the referred adolescents and their sibling (Mage=15.03). We computed the number of days in the 30 days prior to the baseline that alcohol and cannabis use occurred on the same day. Using a cross-sectional actor partner interdependence model, we tested two models of how adolescents’ substance use is associated with their own (“actor effect”) and their siblings’ (“partner effect”) sexual risk behavior—one model for alcohol and cannabis use, and one model for co-use. Results indicated for referred adolescents and their siblings, within an individual, greater alcohol, cannabis, and co-use was significantly associated with sexual risk behavior (actor effects). Furthermore, more sibling co-use days were positively associated with referred adolescent sexual risk behavior (partner effect), representing interdependence. These findings confirm the influence siblings have on one another’s risky behavior in adolescence and have implications for prevention and intervention efforts for adolescent substance use.

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Section: Discussionsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Adolescent sibling associations among alcohol, cannabis, and sexual risk behavior: A test of interdependence

Thomas¹,

Micalizzi²,

Meisel³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Within our sample, the mean number of standard drinks reported on an average drinking day was 5.33, with significant variability (SD = 4.33). This meets the definition of binge-drinking (4 or more drinks for females or 5 or more drinks for males) and is concerning due to research that has shown greater negative consequences from marijuana-alcohol co-use compared to use of either substance alone (Cummings et al, 2019;Egan et al, 2019;Mallett et al, 2017). Though work in this area is still emerging, alcohol-marijuana co-use has been associated with increased risks and poor outcomes, including lower GPA, higher depression scores, and higher state-trait anxiety (Mallett et al, 2017;Meda et al, 2017).…”

Section: (111%)mentioning

confidence: 99%

“…Similarly, a study with a sample of veterans showed that participants drank more heavily on days when they also used marijuana (Metrik et al, 2018). Additional research has suggested that the co-use of marijuana and alcohol may lead to more negative consequences than the use of either substance alone (Cummings et al, 2019;Egan et al, 2019;Lee et al, 2020;Mallett et al, 2017). Though research on co-use is still developing, it's important to understand how alcohol use may relate to CUD in young adults.…”

Section: Introductionmentioning

confidence: 99%

Characterizing Symptoms of Cannabis Use Disorder in a Sample of College Students

Pellegrino

Duck

Kriescher

et al. 2020

Journal of Drug Issues

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Since the legalization of marijuana in several U.S. states in 2012, there has been concern about increases in the development of cannabis use disorder (CUD). The current study examined rates of CUD in Colorado college students who reported regular marijuana use and assessed a range of factors associated with CUD symptoms, including coping motives, concentrate/dab use, mental health concerns (depression, anxiety), age of regular marijuana use, and alcohol use. College students were recruited from a mid-sized university and completed a baseline assessment that included a marijuana urine screen. Participants reported a median of five CUD symptoms and 90% met criteria for CUD. After adjusting for covariates, the age of regular marijuana use was negatively associated with the number of CUD symptoms, while the average daily alcohol drinks was positively associated with the number of symptoms. Prevention and intervention efforts at the university level should be increased to reduce negative outcomes associated with problem marijuana use.

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“…The effects of alcohol and cannabis co-use on cognitive functions have been the subject of less research, and are more ambiguous than those of these substances when consumed alone. Some authors ( 13 – 15 ) consider that cannabis tempers the deteriorating effect of alcohol on cognitive functions, while others ( 16 , 17 ) argue for a synergistic effect of cannabis on the deteriorating effect of alcohol on memory. In addition, there are no studies that have evaluated the phenomenon of cognitive tolerance in alcohol and cannabis co-users, a phenomenon observed in female alcohol users ( 2 ).…”

Section: Introductionmentioning

confidence: 99%

Binge Drinking, Alone or With Cannabis, During Adolescence Triggers Different Effects on Immediate Visual Memory in Men and Women

Vinader‐Caerols

Monleón

2021

Front. Psychiatry

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Background: This study examines the interaction between a history of binge drinking (BD), alone or with cannabis consumption, and the effects of acute alcohol exposure on immediate visual memory (IVM) (faces memory task, scenes memory task and IVM-IQ) in adolescents of both sexes.Method: Two hundred and ninety adolescents, grouped into refrainers, binge drinkers and subjects with a history of simultaneous BD/Cannabis co-use, received a risk dose of alcohol or a control drink.Results: Consumption Pattern (refrainers vs. binge drinkers vs. BD/Cannabis consumers) was not significant, while Treatment (acute alcohol vs. control drink) was significant in both sexes. Also, male binge drinkers' performance in the faces memory task was poorer than that of refrainers and BD/Cannabis consumers who consumed the control drink. BD/Cannabis consumers performed this task as capably as refrainers. In women, binge drinkers performed better than refrainers in scene memory and IVM-IQ tests when given alcohol, and binge drinkers performed worse than refrainers after consuming the control drink.Conclusions: Acute alcohol consumption worsens IVM. Cannabis exerts a buffering effect in men. A cognitive tolerance effect is observed in women. Exposure during adolescence to alcohol, alone or with cannabis, can trigger different cognitive effects in men and women that could endure into adulthood.

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Is the Sum Greater than its Parts? Variations in Substance-Related Consequences by Conjoint Alcohol-Marijuana Use Patterns

Cited by 31 publications

References 54 publications

Adolescent sibling associations among alcohol, cannabis, and sexual risk behavior: A test of interdependence

Adolescent sibling associations among alcohol, cannabis, and sexual risk behavior: A test of interdependence

Characterizing Symptoms of Cannabis Use Disorder in a Sample of College Students

Binge Drinking, Alone or With Cannabis, During Adolescence Triggers Different Effects on Immediate Visual Memory in Men and Women

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