Multiple Substance Use Research Articles

Syndemic Conditions Associated with Hazardous Alcohol Consumption among Sexual Minority Men in San Francisco

BackgroundHazardous alcohol consumption (HAC) is prevalent among sexual minority men (SMM). Using syndemic theory, this study aimed to identify the number of syndemic conditions, including their combinations, and their association with HAC among SMM in San Francisco. MethodWe conducted a secondary analysis of cross-sectional data from 246 SMM who consume alcohol. Syndemic factors included multiple substance use, depressive symptoms, HIV/STI status, and houselessness. We conducted a multivariable logistic regression to estimate the odds of HAC associated with increasing syndemic conditions. We further examined which combinations of three syndemic factors were associated with the highest odds for HAC. ResultsThe average age was 40.7; participants were predominantly White (33.3%) and Black/African American (29.7%) and graduated from high school (92.7%). The prevalence of HAC increased with the number of syndemic conditions: 13.6% with none, 30.9% with one, 51.9% with two, 65.1% with three, and 69.2% with four conditions. A significant log-linear trend was observed, with two syndemic conditions increasing the odds of HAC over fivefold (AOR=5.05, 95% CI=1.68–15.15), and three and four syndemic conditions increasing the odds by more than eightfold (AOR=8.82, 95% CI=2.74–28.39; AOR=8.55, 95% CI=2.26–32.28). The combination of depressive symptoms, HIV/STI status, and houselessness tripled the odds for HAC (OR=3.07, 95% CI=1.34–7.04). ConclusionHAC was associated with increasing syndemics, and specific conditions (depression, HIV/STI, and houselessness) had the greatest odds of HAC. These findings underscore the need for comprehensive screening and integrated interventions targeting these co-occurring conditions to reduce HAC in this population.

Characterizing a syndemic: STI symptoms, substance use & violence among incarcerated Peruvian women

Abstract Background Despite increasing rates of incarceration and sexually transmitted infections (STIs) among women globally, STI epidemiological data for this vulnerable at-risk population is limited. We therefore characterized patterns of STI symptoms and explored covariates and drivers of STI symptoms among incarcerated women in Peru. Methods Among 249 incarcerated women surveyed on substance use, depression, sexual behavior, STI symptoms and violence, univariate and bivariate analysis informed a latent profile analysis (LPA) and logistic regression assessing for syndemic associations between violence, substance use, and STI symptoms. Results Most participants were Peruvian (93.5%), in their late 30s (median=37; range:18-70 years), sentenced to < 5 years (86.6%) and had completed high school (78.7%). 36.9 had ≥2 STI; A minority were pregnant (2.6%), had children residing with them in prison (7.2%); symptoms. The LPA model with the best fit revealed the largest (39%) group with a ‘syndemic’ profile involving co-occurrence of multiple STI symptoms, substance use, and experiences of interpersonal violence (IPV); 86.6% of this latent class were <50 years old. The substance use and violence ‘syndemic’ profile was associated significantly higher likelihood of having multiple STI symptoms (2+ symptoms: PR = 1.88 (95% CI 1.18, 2.99) or 3+ symptoms PR = 2.55 (95% CI 1.32, 4.93). Conclusions and Recommendations The syndemic of younger incarcerated women with substance use and IPV with STI symptoms portends a group at substantially higher risk for HIV and given the structured setting of prisons, should be routinely screened for and treated for STIs. Moreover, these settings can and should screen for and address substance use and IPV and intervene before these women are released to community settings to not only improve individual but public health needs. Key messages • In line with syndemic theory, incarcerated women presenting with multiple STI symptoms (≥2) were more likely to be engaged in substance use (illicit drug use and/or alcohol) and experience violence. • Post-hoc analysis also revealed the rate of substance use was higher among women who engaged in commercial sex work (CSW) pre-incarceration compared to those who were not engaged in CSW.

The Impact of Parental Monitoring on Exposure to Multiple Substances and Bullying in Croatian Students

Background/Objectives: Adolescence is a critical period for experimenting with a wide range of risky behaviors, which are often influenced by family dynamics, including parental monitoring. This study aims to analyze the patterns of exposure to multiple substances and bullying among Croatian students by age and gender in 2022 and examine the association of exposure to multiple substances and bullying with maternal and paternal monitoring. Methods: The data were obtained from the 2022 Health Behaviour in School-aged Children (HBSC) study conducted in Croatia among students aged 11, 13, and 15. Two multinomial logistic regressions were performed separately by age and gender. Results: Exposure to multiple instances of bullying is more common among boys than girls in all three age groups, while exposure to multiple substances varies depending on age. The analysis revealed the strong protective effect of maternal monitoring against both substance use and bullying. Paternal monitoring showed less consistent effects but still indicated that lower paternal monitoring was associated with higher exposure to multiple substances and bullying, particularly at age 13. Conclusions: The patterns of multiple substance use and bullying vary by gender and age, emphasizing the need for tailored intervention strategies. Programs that strengthen parental monitoring, particularly maternal monitoring, should be prioritized.

Detection of serum alterations in polysubstance use patients by FT-Raman spectroscopy

Substance use disorders pose significant health risks and treatment challenges due to the diverse interactions between substances and their impact on physical and mental health. The chemical effects of multiple substance use on bodily fluids are not yet fully understood. Therefore, this study aimed to investigate the chemical changes induced by a combination of substances compared to a control group. Analysis of FT-Raman spectra revealed structural alterations in the amide III, I, and C = O functional groups of lipids in subjects treated with opioids, alcohol and cannabis (polysubstance group). These changes were evident in the form of peak shifts compared to the control group. Additionally, an imbalance in the amide-lipid ratio was observed, indicating perturbations in serum protein and lipid levels. Furthermore, a 2D plot of two-track two-dimensional correlation spectra (2T2D-COS) demonstrated a shift towards dominance of lipid vibrations in the polysubstance use groups, contrasting with the predominance of the amide fraction in the control group. This observation suggests distinct molecular changes induced by multiple substance use, potentially contributing to the pathophysiology of substance use disorders. Principal Component Analysis (PCA) was utilized to visualize the data structure and identify outliers. Subsequently, Partial Least Squares Discriminant Analysis (PLS-DA) was employed to classify the polysubstance use and control groups. The PLS-DA model demonstrated high classification accuracy, achieving 100.00 % in the training dataset and 94.74 % in the test dataset. Furthermore, receiver operating characteristic (ROC) analysis yielded perfect AUC values of 1.00 for both the training and test sets, underscoring the robustness of the classification model.This study highlights the quantitative and qualitative changes in serum protein and lipid levels induced by polysubstance use groups, as evidenced by FT-Raman spectroscopy. The findings underscore the importance of understanding the chemical effects of polysubstance use on bodily fluids for improved diagnosis and treatment of substance use disorders. Moreover, the successful classification of spectral data using machine learning techniques emphasizes the potential of these approaches in clinical applications for substance abuse monitoring and management.

Microelimination of Hepatitis C in Patients with Substance Use and Dual Disorders - a Portuguese Study.

Chronic hepatitis C (CHC) is a serious condition of public health importance. In Portugal, the prevalence of detectable hepatitis C virus (HCV) antibodies is approximately 0.54%, with a higher prevalence in high-risk groups. Compared with the general population, the prevalence of HCV infection is higher in individuals with psychiatric disorders. As no studies have reported the prevalence of HCV antibodies in Portuguese patients with psychiatric conditions and substance use disorders, we conducted an observational, prospective study of patients followed in the Dual Pathology Outpatient and Inpatient Unit of Coimbra Hospital and University Center (CHUC), Patients were tested for HCV antibodies. Of the 149 patients, 17.4% were positive for HCV antibodies and 7.4% had detectable HCV RNA indicating CHC. Most patients with confirmed CHC were male inpatients, aged 50 to 59 years, and reported unprotected sex with more than one concurrent partner in the past 6 months. Their most common psychiatric diagnosis was "Disorders due to use of multiple specified psychoactive substances, including medications." The prevalence of HCV antibodies and confirmed CHC were higher in patients followed in the Dual Pathology Outpatient and Inpatient Unit than in the general Portuguese population.

Assessment of RNFL and macular changes in the eye related to multiple substance use using OCT

Substance use is a chronic and recurrent public healthcare concern increasing in the world, causing negative outcomes. Two or more substance use is common among people who have substance use disorders and who receive treatment. For this reason, the present study aimed to measure Retinal Nerve Fiber Layer (RNFL), Mean Macular Thickness (MMT), Central Macular Thickness (CMT) in patients who have Multiple substance use disorder (MSUD) using Optical Coherence Tomography (OCT), considering that it will contribute to the literature. Among the inpatients who were rehabilitated in Elazig Mental Hospital Alcohol and Substance Addiction Treatment Center, 75 people who were diagnosed with MSUD according to DSM-5 and met the criteria, and 51 control groups were included in the study. RNFL, MMT and CMT measurements of both eyes of all participants were made by using the OCT. Total RNFL measurement were significantly thicker than the control group (p < 0.001). MMT and CMT of the eyes of the patient were thinner than the control group (p = 0.009, p < 0.001). The findings provide important contributions to the literature data and in light of these findings, it can be recommended to consider visual findings and possible neurodegeneration when evaluating patients in the addiction group and planning their treatment.

Does the Use of Psychoactive Substances Reveal Underlying Trauma or Common Mental Health Problems?

The paper evaluates the prevalence of psychoactive substance use in a non-clinical sample of university students and examines its relation to childhood traumatic experiences and common mental health problems. An anonymous online survey was conducted between September 2022 and May 2023 in two major universities in Bulgaria using opportunity sampling. The study has a cross-sectional, observational, and retrospective design, using self-rating scales for depression, anxiety, alexithymia, empathy, quality of life, and lifetime history of substance use. One hundred and forty-six university students completed the survey, with a mean age of 23 years (SD=2), 66% females. Ninety-eight percent of the participants have used caffeine, 90% alcohol, 62% tobacco, 50% cannabis, 26% sedatives, 19% amphetamines, 12% inhalants, 8% hallucinogens, 4% opiates, and 9% other/unknown substances. The mean number of psychoactive substances used within a lifetime is 4 (SD=2). Forty-two (29%) participants have a history of use of multiple (≥ 5) types of psychoactive substances. Statistically significant differences from the rest of the sample include lower empathy (p=.016), higher scores on the childhood trauma scale (p=.001), and a higher percentage of dissociative symptoms (47.6%, p=.012). The binary logistic regression model revealed that higher scores on the childhood trauma scale (p=.003) and lower empathy (p=.004) are statistically significant predictors of multiple substance use. In conclusion, the lifetime use of multiple psychoactive substances in non-clinical settings is related to underlying childhood traumatic experiences and lower empathy.

Expectations and needs of people with illicit substance use disorders in general practice: a qualitative study in Belgium

BackgroundPeople who use illicit drugs cumulate medical and psychosocial vulnerabilities, justifying a rounded health approach. Both caregivers and patients can form barriers to accessing care, leading to inadequate care. This study aimed to identify the needs and expectations of such patients in general practice.MethodsQualitative research was conducted using semi-structured interviews with 23 people with illicit substance use disorder in Brussels in 2020. Multicentric recruitment was conducted to obtain a heterogeneous mix of sociodemographic profiles and care trajectories. Thematic analysis was performed using RQDA package software.ResultsParticipants highlighted several vulnerabilities. These include the presence of significant self-stigmatization and guilt, sometimes to the extent of self-dehumanization, even after years of care, and overdoses masking suicide attempts and early memory disorders. Multiple substance use, smoking in almost all participants, and misuse of benzodiazepines were also noted. The majority of participants expressed the need for an open-minded, non-stigmatizing and empathic GP with a holistic approach that could guide them throughout their life course. The competencies of the GPs in the field of addiction seemed secondary to the participants. Knowledge and good collaboration with the mental health network were assets.ConclusionParticipants expressed the need for GPs with good interpersonal skills, including a non-stigmatizing attitude. The care coordinator role of the GP was highlighted as a key element, as it was a holistic approach focusing on global health (including the social determinants of health) and not only on substance use disorders.

Substance Use Among Illinois Farmers

Background: People in agriculture face unique stressors and occupational hazards, and relatively little is known about substance use in this population. The purpose of this study was to describe substance use among farmers in Illinois. Methods: We conducted a mail survey of Illinois farmers that included the Brief ASSIST to assess substance use for lifetime and past three-month use of ten different substances. The survey also included questions about farming characteristics, mental health, stress, coping, social support, and demographic characteristics. We used chi-square and non-parametric tests to assess group differences. Results: Alcohol, tobacco, cannabis, and sedatives were most reported as used for a lifetime and in the past three months. About three-quarters of the sample had recently used alcohol. Recent tobacco use was associated with not being married, less education, and less concern about climate-related farm stress. Recent sedative use was associated with greater concern about isolation-related farm stress. People who reported multiple substance use were at a greater risk for suicide and were more likely to meet the criteria for generalized anxiety disorder. None of the participants reported recent use of cocaine, heroin, inhalants, or hallucinogens. Conclusion: Specific social and cultural aspects of farming and farm communities may contribute to substance use among people working in agriculture. Future research can help to better understand this intersection and make recommendations for programs and resources to promote adaptive coping strategies.

S143 - Traumatic Events, Chronic Pain, and Multiple Substance Use in Women With Poly-Substance Use Disorder

S143 - Traumatic Events, Chronic Pain, and Multiple Substance Use in Women With Poly-Substance Use Disorder

Examining the impact of substance use on hospital length of stay in schizophrenia spectrum disorder: a retrospective analysis

BackgroundAmong patients diagnosed with schizophrenia, the presence of substance use poses an aggravating comorbidity, exerting a negative impact on the course of the disease, adherence to therapeutic regimens, treatment outcomes, duration of hospital stays, and the frequency of hospitalizations. The primary objective of the present study is to investigate the relationship between comorbid substance use disorders, antipsychotic treatment, and the length of stay in individuals hospitalized for treatment of schizophrenia.MethodsWe conducted a retrospective analysis of electronic health records spanning a 12-month period, specifically focusing on adult patients diagnosed with schizophrenia who were discharged from the University Hospital of Psychiatry Zurich between January and December 2019. We documented the number and types of diagnosed substance use disorder, the antipsychotic treatment, the length of stay, and the number of previous hospitalizations for each patient.ResultsOver a third (n = 328; 37.1%) of patients with schizophrenia had comorbid substance use with cannabis being the most frequent consumed substance. Patients with substance use (either single or multiple) were more frequently hospitalized; those with multiple substance use more frequently than those with a single substance use (F(2, 882) = 69.06; p < 0.001). There were no differences regarding the rate of compulsory admission. Patients with no substance use had a lower HoNOS score at discharge (F(2, 882) = 4.06). Patients with multiple substance use had a shorter length of stay (F(2, 882) = 9.22; p < 0.001), even after adjusting for duration of illness, previous hospitalizations, diagnosis, and antipsychotic treatment.ConclusionsIn patients with schizophrenia, comorbid single or multiple substance use has a relevant negative impact on treatment and thus on the course of disease. Substance use in patients with schizophrenia should therefore receive special attention in order to reduce re-hospitalization rates and improve the clinical outcome.

Distinct patterns of cigarette smoking intensity and other substance use among women who experience housing instability

BackgroundRecent insights into substance use cessation suggest that outcomes short of long-term abstinence are clinically meaningful and may offer more realistic incremental goals, particularly for highly vulnerable individuals. With the goal of informing tobacco treatment programs, we examined distinct patterns of cigarette smoking and their association with the ongoing use of other substances in women who experience housing instability. MethodsWe recruited participants from a longitudinal study of women experiencing housing instability. Between June 2017 and January 2019, participants completed six monthly survey interviews regarding social conditions and the use of multiple substances. We examined associations between cigarette smoking intensity, including number of cigarettes smoked per day, heavy smoking, and an increase in number of cigarettes smoked from the previous 30-days, and other substance use in the past 7-days. ResultsOf the 243 participants, 69 % were current smokers and 58 % were daily smokers. Number of cigarettes smoked per day (Adjusted odds ratio [AOR] 1.02, 95 % CI 1.00–1.03), heavy cigarette smoking, compared to none or light smoking (AOR 2.02, 95 % CI 1.46–2.79), and an increase in number of cigarettes smoked from the previous 30-days (AOR 1.06, 95 % CI 1.01–1.12) were all significantly associated with methamphetamine use in the past 7-days. Associations with other substance use were not as strong. ConclusionsIn a sample of unstably housed women, where almost half used multiple substances, methamphetamine use was associated with higher cigarette smoking intensity. Our findings highlight a potential role for integrating tobacco and methamphetamine use treatment to reduce tobacco use among unstably housed women.

Factors associated with suicidal ideation among people with HIV engaged in care

BackgroundPeople with HIV (PWH) are at elevated risk for suicidal ideation (SI), yet few studies have examined how substance use, clinical and sociodemographic factors are associated with SI among PWH. MethodWe used substance use (Tobacco, Alcohol, Prescription Medication, and Other Substance Use [TAPS]) and depression (PHQ-9) data from computerized screening of adult PWH in primary care clinics in Northern California, combined with health record data on psychiatric diagnoses, HIV diagnosis, treatment, and control (HIV RNA, CD4), insurance, and neighborhood deprivation index (NDI) to examine factors associated with SI (PHQ-9 item 9 score > 0). Adjusted odds ratios (aOR) for SI were obtained from logistic regression models. ResultsAmong 2829 PWH screened (92 % male; 56 % white; mean (SD) age of 54 (13) years; 220 (8 %) reported SI. Compared with no problematic use, SI was higher among those reporting one (aOR = 1.65, 95 % CI = 1.17, 2.33), two (aOR = 2.23, 95 % CI = 1.42, 3.49), or ≥ 3 substances (aOR = 4.49, 95 % CI = 2.41, 8.39). SI risk was higher for those with stimulant use (aOR = 3.55, 95 % CI = 2.25, 5.59), depression (aOR = 4.18, 95 % CI = 3.04, 5.74), and anxiety diagnoses (aOR = 1.67, 95 % CI = 1.19, 2.34), or Medicaid (aOR = 2.11, 95%CI = 1.24, 3.60) compared with commercial/other insurance. SI was not associated with HIV-related measures or NDI. LimitationsSI was assessed with a single PHQ-9 item. Simultaneous SI and exposure data collection restricts the ability to establish substance use as a risk factor. ConclusionsHIV care providers should consider multiple substance use, stimulant use, depression or anxiety, and public insurance as risk factors for SI and provide interventions when needed.

Factors affecting implementation of interventions for oral health, substance use, smoking and diet for people with severe and multiple disadvantage: a community-based qualitative study in England

BackgroundPopulations facing severe and multiple disadvantage (SMD), co-occurring homelessness, substance use and repeat offending have high levels of physical and mental ill-health. Poor oral health is one of the most...

Abuse liability of transdermal nicotine patch: a case of “nicotine buzz”

ABSTRACT Background Transdermal nicotine patches are widely used for the treatment of nicotine dependence. The abuse liability of nicotine replacement therapies is considered low because of an absence of peaks observed with smoking. While typically well-tolerated, higher doses of transdermal nicotine patches may pose risks of adverse effects, as illustrated by a case of a young adult experiencing euphoria with a 63 mg patch. Case report A 27-year-old male with a history of multiple substance use, including cannabis, alcohol, and tobacco, was abstinent from tobacco with the use of a 21 mg/day transdermal nicotine patch. He increased the dosage to 63 mg/day temporarily, experiencing heightened alertness and a cannabis-like “buzz” sensation. Subsequent education on appropriate patch use led to a reduction in dosage and the disappearance of the sensation. Conclusions While higher doses have been utilized to manage cravings, associated adverse effects and potential for abuse emphasize the need for careful monitoring and individualized dosing strategies. Healthcare professionals should educate patients on the appropriate use of transdermal nicotine patches to mitigate risks and maximize therapeutic benefits.

Brief Report: The Role of Substance Use in Structural Heart Disease Among Women Living With HIV.

People living with HIV have increased risk of cardiovascular disease, but few studies focus on women with HIV (WWH) and few account for the use of multiple substances. We recruited WWH from San Francisco shelters, free meal programs, street encampments, and a safety net HIV clinic. Between 2016 and 2019, participants completed 6 monthly interviews, specimen collection, and a transthoracic echocardiogram. We assessed associations between 3 echocardiographic indices of cardiac hypertrophy (concentric hypertrophy, concentric remodeling, and eccentric hypertrophy) and study factors, including cardiovascular risk factors, substance use, and HIV-specific factors (CD4 + count, viral load, HIV medication). Among 62 participants, the average age was 53 years and 70% were ethnic minority women. Just over 70% had elevated blood pressure. Toxicology-confirmed substance use included tobacco (63%), cannabis (52%), cocaine (51%), methamphetamine (29%), and alcohol (26%). Concentric hypertrophy was detected in 26% of participants. It was positively associated with cocaine use [adjusted relative risk (aRR) = 32.5, P < 0.01] and negatively associated with cannabis use (aRR = 0.07, P < 0.01). Concentric remodeling was detected in 40% of participants. It was positively associated with cocaine use (aRR = 11.2, P < 0.01) and negatively associated with cannabis use (aRR = 0.17, P = 0.02). Eccentric hypertrophy was not significantly associated with factors studied here. Routine evaluation of stimulant use as a contributing factor to cardiovascular risk may improve risk assessment in WWH. Whether cannabis use mitigates the impact of cocaine use on structural heart disease among WWH merits further investigation.

Different facets of addiction from a systemic perspective: a case report

IntroductionMany individuals who suffer from one or multiple substance use disorders often also struggle with another co-morbid psychiatric condition, primarily anxiety disorders. As substance dependency develops, the loss of self-control becomes a pivotal issue, leading to challenges in self-esteem and self-respect. These challenges subsequently give rise to problems in interpersonal communication and close relationships. In addition to the biological model of substance use problems and highly manualized approaches, it is crucial to have a systemic understanding of the patient’s situation and appropriate treatment settings. This understanding allows for the proper consideration of individual differences and requirements, ultimately enabling better treatment and prevention strategies.ObjectivesOur aim is to present a comprehensive case that shows various facets of addiction and introduce a systemic therapy concept of an integrative/systemic day clinic from Germany.MethodsThrough a detailed case presentation, we will introduce a systemic-psychotherapeutic day-clinic concept from a psychiatric training hospital in Wunstorf, Germany.ResultsCase: In the case of a 48-year-old female patient initially diagnosed with recurrent depressive disorder, it was later revealed that she also deals with alcohol addiction and its interconnectedness with sex addiction. Shame and a lack of self-esteem in relationships played a central role in her journey. She does not perceive herself to be loved but to be harmed, which led to many violent sexual acts that increased her feelings of shame. Systemic therapeutic approaches like family constellations were applied, helping her to experience her child-ego states. This profound insight propelled her willingness to change. She began prioritizing self-care, learning to like, accept, and eventually love herself. Aromatherapy aided in calming and maintaining focus. The patient learned to redefine her emotions, aligning them with reality, thereby enabling the adaptive fulfillment of her needs.Conclusions Our interdisciplinary team at the day clinic employs therapeutic approaches like dynamic, cognitive-behavioral, and systemic therapy to thoroughly understand the patients and their conditions. This case underscores the significance of an individually tailored treatment drawing from diverse therapeutic concepts, especially in patients with addiction. The combination of different therapeutic approaches facilitates a profound engagement with the patient, potentially resulting in more intensive therapeutic work and a higher rate of success which should be evaluated in future studies.Disclosure of InterestNone Declared

A rapid review of literature on first episode psychosis among United States military service members

ABSTRACT Background Current literature does not thoroughly examine the development or treatment of first episode psychosis (FEP) among active duty service members. Methods We conducted a rapid review on demographics, epidemiology, assessment, and intervention for FEP among service members. The final dataset contained eight peer-reviewed articles published between 2011 and 2021. Results Incidence of FEP among service members ranged from 1.4 to 2.3 for schizophrenia and 5.6 to 9.3 for other psychotic disorders per 10,000 person-years. Risk factors for developing psychosis during active duty service included distance of the place of service to home, multiple substance use, birthplace or place of residence in small towns or large cities, psychosocial stress, placement in an Army service branch or motor transport occupation, and more than one visit to mental health providers in the year before diagnosis. Racial minority status, younger age, less education, lower military grade, less time spent in service, and never-married status were also associated with higher risk of FEP. Conclusion Enhancing screening procedures before and after military entrance, reducing the impact of psychosocial stress during military initiation, and providing early, multimodal treatment for FEP would likely improve health outcomes for service members and reduce burden on the Military Health System.

Dual-Vaping of Nicotine and Cannabis Among Adults Who Currently Use Tobacco Products in Five New England States.

Current measures of vaping behaviors in the U.S. do not distinguish what substances participants are vaping and to what extent they are dual-vaping nicotine and cannabis. This study describes the use of new survey questions that more specifically ask whether participants who vape are vaping nicotine, cannabis, cannabidiol (CBD), or another substance. Adults, who reported any past 30-day tobacco use, from five New England states participated in an online survey from April 2021 to July 2022. Participants who vaped were asked, "Have you used any of the following vape substances in the past 30 days?" with the possible responses of nicotine, cannabis, CBD, other, and "don't know." Dual use of both nicotine and cannabis was defined as the vaping of both nicotine and cannabis and/or CBD in the past 30 days, operationalized as a dichotomous outcome. Data were collected in monthly, repeated cross-sectional waves. Multinomial logistic regression was used to examine correlates of dual-vaping. The analytic sample included 1547 adults who reported past 30-day tobacco use (mean age 42.9 years, 62.8% female, 85.4% White, 48.5% income of less than $50 000). Over one-quarter (26.1%) reported dual-vaping in the past 30 days. Identifying as male (p = .002) and self-rated anxiety (p = .043) were associated with a higher odds of dual-vaping. Our findings show that a sizable proportion of a sample of New England adults who have used tobacco in the past 30 days are dual-vaping nicotine and cannabis. Adequate survey measures for assessing the vaping of multiple substances can help in better screening and characterization of health behaviors around dual-use. This study addresses a key gap in adequate survey measures for assessing vaping of multiple substances. We found that among adults with past 30-day tobacco use, dual-vaping was prevalent and associated with different correlates, such as self-reported anxiety and education level, compared to sole-vaping of nicotine or cannabis. Our findings may help in characterizing and targeting future population-level surveillance and intervention efforts for multiple substance use behaviors.

Multiple Discrimination and Substance Use Intention in Late Childhood: Findings From the Adolescent Brain Cognitive Development (ABCD) Study

PurposeThe study aimed to investigate longitudinal, bidirectional associations between discrimination due to multiple reasons (race/ethnicity, sexual orientation, weight; termed multiple discrimination) and substance use (SU) intention in late childhood. These associations were compared across youth with no, single, and multiple (i.e., intersecting) marginalized identities based on race/ethnicity, sexual orientation, and overweight status. MethodsData were drawn from a national sample of youth in the Adolescent Brain Cognitive Development study (N = 8,530; 9–12 years old). Youth reported both their experiences of multiple discrimination (the number of forms of discrimination youth experienced) and SU intention at one-year and two-year follow-ups. Theoretically relevant covariates were included. ResultsCompared to non-marginalized youth (n = 2,689) and youth with single marginalized identities (n = 3,399), youth with intersecting marginalized identities (n = 2,442) reported the highest SU intention and multiple discrimination across waves. Only for this last group, multiple discrimination predicted stronger SU intention subsequently (β = 0.07, 95% confidence interval [0.02, 0.11]), whereas stronger SU intention predicted lower levels of multiple discrimination over time (β = −0.06, 95% confidence interval [-0.09, −0.02]). Sensitivity analyses yielded similar patterns with some nuances among subgroups of youth with varying intersecting marginalized identities. DiscussionMultiple discrimination predicted stronger SU intention over time in late childhood, particularly among youth with intersecting marginalized identities. Policies and practices should consider addressing multiple discrimination to reduce SU disparities among diverse youth.