The Association between Post-Traumatic Stress Disorder and Problematic Alcohol and Cannabis Use in a Multi-Ethnic Cohort in The Netherlands: The HELIUS Study.

(1) Background: Ethnic minorities exhibit a higher prevalence of post-traumatic stress disorder (PTSD), while results for problematic substance use among ethnic groups remain mixed. PTSD and problematic substance use often co-occur; however, the impact of ethnicity on this association has not yet been investigated. (2) Methods: Self-report data on problematic alcohol/cannabis use (AUDIT/CUDIT) and presence of severe PTSD symptoms (PSS-SR) of N = 22,841 participants of Dutch (n = 4610), South-Asian Surinamese (n = 3306), African Surinamese (n = 4349), Ghanaian (n = 2389), Turkish (n = 3947), and Moroccan (n = 4240) origin were available from the HELIUS study. (3) Results: We found a positive association between the presence of severe PTSD symptoms and problematic alcohol and cannabis use. Ethnicity did not moderate the association between the presence of severe PTSD symptoms and problematic alcohol/cannabis use. (4) Conclusions: We demonstrated the relationship between the presence of severe PTSD symptoms and problematic alcohol/cannabis use in a multi-ethnic sample. The relationship between the presence of severe PTSD symptoms and problematic alcohol/cannabis use was similar between ethnic groups. We recommend screening for PTSD symptoms in those exhibiting problematic substance use and vice versa, regardless of ethnic background.

Ecological investigation of the co-occurrence of posttraumatic stress disorder symptoms and cannabis use among community women experiencing intimate partner violence.

BACKGROUND: Women experiencing intimate partner violence (IPV) are at increased risk for developing hazardous patterns of cannabis use. Research suggests that women experiencing IPV use cannabis to cope with posttraumatic stress disorder (PTSD) symptoms. To advance research, we used experience sampling methods to explicate the within-day concurrent and proximal relations between PTSD symptom clusters and cannabis use among women experiencing IPV. METHOD: Participants were 145 community women (M age = 40.66, 41.6% white, 31.4% Black, 10.9% Hispanic or Latina, 8% American Indian/Alaska Native, 5.8% Bi-/multi-racial) experiencing IPV and using substances who completed three surveys a day for 30 days. RESULTS: Externalizing behavior (OR = 1.37, 95% CI [1.15, 1.65], p < 0.001) and dysphoric arousal (OR = 1.27, 95% CI [1.09, 1.49], p = 0.002) PTSD symptom clusters were associated with cannabis use reported in the same survey period. Results from the lagged models found no proximal associations between PTSD symptom clusters and cannabis use. CONCLUSIONS: Results highlight the acute effects of externalizing behavior and dysphoric arousal PTSD symptoms on cannabis use among women experiencing IPV. These findings may inform prevention and intervention efforts for cannabis use in this population.

Psychosocial Correlates and Early Substance Abuse Associated With Lifetime Hallucinogen Use Among Hispanic Young Adults.

INTRODUCTION: The Hispanic population is among the most rapid growing populations in the United States. Continued research is needed regarding factors associated with substance abuse and Hispanic individuals. The present study examined psychosocial correlates to lifetime hallucinogen use among a national sample of Hispanic adults. METHOD: A secondary analysis of the 2017 National Survey on Drug Use and Health was conducted. Questions assessing previous lifetime substance use, psychosocial factors, and demographics were completed by 2,866 Hispanic adults. Weighted logistic regression analyses were used to identify significant predictors of lifetime hallucinogen use. RESULTS: Results indicated that greater than one in seven (15.1%) of Hispanic adults reported having ever used hallucinogens (lifetime use). Findings from the final multivariate regression revealed that those most likely to report lifetime hallucinogen use were male, used alcohol, marijuana, cigars, cigarettes, inhalants, and cocaine before the age of 21, and binge drank in the past 30 days. DISCUSSION: Culturally competent prevention strategies aimed at addressing hallucinogen use among Hispanics are needed. Further research studies examining psychosocial reasons explaining the high prevalence of hallucinogen use among this population are warranted.

Does establishing local treatment institutions lead to different populations seeking treatment among Greenlandic Inuit?

Introduction: In 2016, a new addiction treatment service was established in Greenland to tackle the addiction problems with alcohol, cannabis and gambling among the population. The new service has established a treatment center in each of the five municipalities and works in partnership with a central private provider of treatment for those who reside in areas without a local treatment center.Methods: The national addiction database provided us with data from the Alcohol Use Disorder Identification Test, Alcohol Severity Index and questions on cannabis use and gambling behavior received at referral to, and at initiation of treatment. The data were analyzed for differences between the population in local or central treatment using SPSS version 25 (SPSS Inc., Chicago, IL).Results: Significant differences between the individuals in local and central treatment were revealed. Individuals in local treatment are more often women with minor children and a job, and their alcohol use is concentrated on weekends/holidays. Individuals in central treatment are more equal in both genders, few have minor children living at home, heavy drinking is more pronounced, and cannabis is used more frequently as well.Discussion: The findings support our expectations of local treatment being more attractive to individuals with obligations at home. The differences in the populations are worth considering when planning the treatment service, as the needs of the populations might differ. The findings are limited by many missing in the analyses, which we believe is caused by the establishing process of the new service.

Higher odds of irritable bowel syndrome among hospitalized patients using cannabis: a propensity-matched analysis.

BACKGROUND: The endogenous cannabinoid system modulates many brain-gut and gut-brain physiologic pathways, which are postulated to be dysfunctional in irritable bowel syndrome (IBS). Herein, we examine the relationship between cannabis use disorder (CUD) and having IBS. PATIENTS AND METHODS: After selecting patients aged 18 years and above from the 2014 Nationwide Inpatient Survey, we used the International Classification of Diseases, 9th ed. codes to identify individuals with CUD, IBS, and the established risk factors for IBS. We then estimated the crude and adjusted odds ratios of having a diagnosis of IBS with CUD and assessed for the interactions of CUD with other risk factors (SAS 9.4). We confirmed our findings in two ways: conducting a similar analysis on a previous Nationwide Inpatient Survey data (2012); and using a greedy algorithm to design a propensity-scored case-control (1 : 10) study, approximating a pseudorandomized clinical trial. RESULTS: Out of 4 709 043 patients evaluated, 0.03% had a primary admission for IBS and 1.32% had CUD. CUD was associated with increased odds of IBS [adjusted odds ratio: 2.03; 95% confidence interval (CI): 1.53-2.71]. CUD was related to higher odds for IBS among males compared with females (3.48; 1.98-6.12 vs. 1.48; 0.88-2.50), and Hispanics and Caucasians compared with Blacks (5.28; 1.77-15.76, 1.80; 1.02-3.18 vs. 1.80; 0.65-5.03). On propensity-matching, CUD was associated with 80% increased odds for IBS (1.82; 1.27-2.60). CONCLUSION: Our findings suggest that CUD is significantly associated with IBS among the general population. Males, Caucasians, and Hispanics might be more impacted by CUD associated IBS. Additional biomedical studies are required to elucidate this relationship.

Several clock genes polymorphisms are meaningful risk factors in the development and severity of cannabis addiction.

Circadian rhythms have been related to psychiatric diseases and regulation of dopaminergic transmission, especially in substance abusers. The relationship between them remained enigmatic and no data on the role of clock genes on cannabis dependence have been documented. We aimed at exploring the role of clock gene genotypes as potential predisposing factor to cannabis addiction, using a high throughput mass spectrometry methodology that enables the large-scale analysis of the known relevant polymorphisms of the clock genes. We have conducted a case-control study on 177 Caucasians categorizing between cannabis-addicted subjects and casual consumers based on structured interviews recorded socio-demographic data, AUDIT, Fagerström test, MINI, and medical examinations. Alcohol, opiates, and stimulants' consumption was as exclusion criteria. We report an association between several Single Nucleotide Polymorphism (SNP)s in main circadian genes SNPs, especially the gene locus HES7/PER1 on chromosome 17 and cannabis consumption as well as the development of neuropsychiatric and social disorders. This SNP's signature that may represent a meaningful risk factor in the development of cannabis dependence and its severity requires to be deeply explored in a prospective study.

Triple trajectories of alcohol use, tobacco use, and depressive symptoms as predictors of cannabis use disorders among urban adults.

Heavy cannabis use is associated with a wide array of physical, mental, and functional problems. Therefore, cannabis use disorders (CUDs) may be a major public health concern. Given the adverse health consequences of CUDs, the present study seeks to find possible precursors of CUDs. The current study consisted of 5 waves of data collection from the Harlem Longitudinal Development Study. Among 816 participants, about half are African Americans (52%), and the other half are Puerto Ricans (48%). We used Mplus to obtain the triple trajectories of alcohol use, tobacco use, and depressive symptoms. Logistic regression analyses were then conducted to examine the associations between the trajectory groups and CUDs. The 5 trajectory groups were (1) moderate alcohol use, high tobacco use, and high depressive symptoms (MHH; 12%); (2) moderate alcohol use, high tobacco use, and low depressive symptoms (MHL; 26%); (3) moderate alcohol use, low tobacco use, and low depressive symptoms (MLL; 18%); (4) low alcohol use, no tobacco use, and high depressive symptoms (LNH; 11%); and (5) low alcohol use, no tobacco use, and low depressive symptoms (LNL; 33%). The MHH, MHL, MLL, and LNH trajectory groups were associated with an increased likelihood of having CUDs compared to the LNL trajectory group after controlling for a number of confounding factors (e.g., CUDs in the late 20s). The findings of the current longitudinal study suggest that treatments designed to reduce or quit drinking as well as smoking and to relieve depressive symptoms may reduce the prevalence of CUDs. (PsycINFO Database Record

Opioid, alcohol, and cannabis misuse among patients with hidradenitis suppurativa: A population-based analysis in the United States.

BACKGROUND: Patients with hidradenitis suppurativa (HS) experience chronic pain and have significant physical, emotional, and psychological disease impact. These patients may be at risk for substance abuse. OBJECTIVE: To evaluate substance use disorder (SUD) among patients with HS in the United States. METHODS: This cross-sectional analysis of adult HS patients (n = 32,625) identified using electronic health records data was pulled from a population-based sample of >50 million patients. RESULTS: The prevalence of SUD among patients with HS was 4.0% (1315/32,625) compared to 2.0% (195,260/9,581,640) for patients without HS (P < .001). The most common forms of substance misuse among HS patients were alcohol (630/1315, 47.9% of SUD cases), followed by opioids (430/1315, 32.7% of SUD cases) and cannabis (430/1315, 29.7% of SUD cases). Patients with HS had 1.50 (95% confidence interval 1.42-1.59) times the adjusted odds of SUD compared to patients without HS. Patients with HS had significantly greater odds of SUD across demographic subgroups. The association between HS and SUD was generally stronger for patients 45 to 64 years of age, nonwhites, privately insured, and those without depressive or anxiety disorder. LIMITATIONS: SUD may not be accurately diagnosed. CONCLUSION: Patients with HS have higher odds of SUD and may benefit from periodic screening for substance abuse.

Childhood interpersonal violence and adult alcohol, cannabis, and tobacco use disorders: variation by race/ethnicity?

BACKGROUND: Exposure to child maltreatment has been shown to increase lifetime risk for substance use disorders (SUD). However, this has not been systematically examined among race/ethnic groups, for whom rates of exposure to assaultive violence and SUD differ. This study examined variation by race/ethnicity and gender in associations of alcohol (AUD), cannabis (CUD), and tobacco (TUD) use disorders with three types of childhood interpersonal violence (cIPV): physical abuse, sexual abuse, and witnessing parental violence. METHOD: Data from the National Epidemiologic Survey of Alcohol-Related Conditions-III (N: 36 309), a US nationally representative sample, was utilized to examine associations of DSM-5 AUD, CUD and TUD with cIPV among men and women of five racial/ethnic groups. Models were adjusted for additional risk factors (e.g. parental substance use problems, participant's co-occurring SUD). RESULTS: Independent contributions of childhood physical and sexual abuse to AUD, CUD, and TUD, and of witnessing parental violence to AUD and TUD were observed. Associations of cIPV and SUD were relatively similar across race/ethnicity and gender [Odds Ratios (ORs) ranged from 1.1 to 1.9], although associations of physical abuse with AUD and TUD were greater among males, associations of parental violence and AUD were greater among females, and associations of parental violence with AUD were greater among Hispanic women and American Indian men. CONCLUSIONS: Given the paucity of research in this area, and the potential identification of modifiable risk factors to reduce the impact of childhood interpersonal violence on SUDs, further research and consideration of tailoring prevention and intervention efforts to different populations are warranted.

Mexican-origin youth substance use trajectories: Associations with cultural and family factors.

The current study identified alcohol and cannabis use trajectories among a sample of Mexican-origin youth and examined cultural and familial correlates from childhood to adolescence. Mexican-origin youth (N = 674) from Northern California were assessed annually from ages 10 to 17 (8 waves). Latent class growth modeling examined variability in developmental trajectories for last 3-month alcohol and cannabis use frequency. Analyses also examined between-trajectory differences in youth's cultural practices and values, family cultural conflict, general parent-child conflict, and parental monitoring at 4 time points from ages 10 to 16. Analyses resulted in a 4-class model for alcohol use, comprising nonusers (62%), early-increasing (10%), adolescent-limited (11%), and late-onset (17%) subgroups, and a 4-class model for cannabis use, including nonusers (74%), early-increasing (8%), occasional use (16%), and high-declining (2%) subgroups. Findings suggested that early language use (higher English at age 10 and lower Spanish at age 12) was a temporally distal marker for several alcohol and cannabis use trajectories, whereas lower traditional family values at ages 14 and 16 were associated with several classes characterized by early substance use. Elevations in familial (parent-child conflict, parental monitoring) risk factors co-occurred in time and generally suggested temporally proximal connections with substance use behavior. Further, there was evidence that a less prominent decline in certain protective factors (e.g., father monitoring) was associated with reductions in substance use. These findings inform the literature by describing youth subgroups with variable risk for substance use development, and suggest modifiable risk factors associated with more frequent substance use trajectories. (PsycINFO Database Record

Race and socioeconomic status in substance use progression and treatment entry.

This study examined trajectories of progression from early substance use to treatment entry as a function of race, among inpatient treatment seekers (N = 945). Following primary race-contingent analyses of use progression, secondary analyses were conducted to investigate the effects of socioeconomic status (SES) on the observed differences. African Americans reported significant delays in treatment entry relative to Caucasians. Racial differences in alcohol, marijuana, and cocaine use trajectories were observed. Accounting for SES rendered observations of accelerated use among African Americans nonsignificant. However, inclusion of SES failed to mitigate the marked racial disparity in treatment entry.

Sociodemographic characteristics of Turkish patients who violated a supervised probation program.

We aimed to investigate sociodemographic characteristics of individuals under a supervised probation program used in Turkey and to compare characteristics of noncompliant versus no-need-to-treat individuals in order to determine the effect of sociodemographic characteristics on success of the supervised probation program. In total, 4,006 individuals who submitted to the supervised probation program of our hospital were evaluated retrospectively from patient data and follow-up records. The mean age of patients was 28.4 ± 8.0 years. We compared the sociodemographic characteristics of "no-need-to-treat" patients (n = 2,205) and "noncompliant" patients (n = 391). We found differences between sociodemographic characteristics of no need to treat and noncompliant groups. We conclude that age, education, presence of self-mutilation, starting age of smoking or substance use, and family history are important factors affecting treatment compliance and success. Therefore, more detailed programs for noncompliant patients should be developed to increase treatment performance.

DSM-5 cannabis use disorder, substance use and DSM-5 specific substance-use disorders: Evaluating comorbidity in a population-based sample.

Cannabis use disorder (CUD) is frequently associated with concurrent substance use and/or comorbid substance use disorders (SUDs); however there is little specificity with regard to commonly abused individual drug types/classes. This study therefore aimed to provide insight into the degree of these co-occurring relationships across several specific newer and older generation illicit and prescription drugs. 36,309 adults aged 18+ from wave 3 of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC-III) were assessed. Weighted cross-tabulations and multivariable logistic regression analyses were used to evaluate comorbidity between current DSM-5 CUD, substance use and DSM-5 SUD. Current DSM-5 CUD is associated with greater lifetime use of all examined drug classes, and previous 12-month use of several newer-class illicit and prescription stimulant-based substances (all p< 0.05). Current DSM-5 CUD was similarly associated with increased incidence of a range of DSM-5 SUDs and was independently associated with concurrently reporting current DSM-5; sedative (Adjusted OR= 5.1, 95%CI 2.9-9.0), cocaine (AOR= 9.3, 95%CI 5.6-15.5), stimulant (AOR= 4.3, 95%CI 2.3-7.9), club drug (AOR= 16.1, 95%CI 6.3-40.8), opioid (AOR= 4.6, 95%CI 3.0-6.8) and alcohol-use disorder (AOR= 3.0, 95%CI 2.5-3.7); but not heroin or 'other' drug use disorder (both p>0.05). High comorbidity exists between DSM-5 CUD and many specific DSM-5 SUDs. Newer-class illicit and prescription stimulant-based drug use disorders are overrepresented among those with DSM-5 CUD. These findings underscore the need for tailored treatment programs for those presenting with DSM-5 CUD, and for greater treatment specification where poly-drug use is evident.

Cannabis Use and Disorder From Childhood to Adulthood in a Longitudinal Community Sample With American Indians.

OBJECTIVE: Recent changes in DSM criteria require new documentation of the prevalence and developmental sequences of cannabis use disorder (CUD). The goal of this study was to investigate the early course of DSM-5 CUD and its overlap with DSM-IV and consumption constructs in a community-representative sample of American Indians. METHOD: Data came from the prospective, longitudinal, population-based Great Smoky Mountains Study in North Carolina (N = 1,420, including 349 American Indians). Cannabis use and disorder were assessed during yearly interviews from 9 to 16 years of age and at 19, 21, 26, and 30 years of age (up to 11 assessments per participant from 1993 through 2015). RESULTS: By 30 years of age, approximately 70% of participants had used cannabis, 34% had used cannabis daily, and 18% had met criteria for DSM-5 CUD. Approximately 1 in 4 cannabis users met criteria for CUD at some point. Those who met criteria initiated use more than 2 years previously (at 13.3 years old) compared with other users. Despite higher risks from increased poverty, American Indians' patterns of use were similar to those of the rest of the sample. Concordance between DSM-5 CUD and DSM-IV abuse or dependence was substantial but was even higher between DSM-5 CUD and daily use. CONCLUSION: It was common to have used cannabis daily or to have met criteria for DSM-5 CUD by adulthood. DSM-5 CUD was an improvement over DSM-IV diagnostic constructs by raising the threshold for diagnosis.

A brief report on Hispanic youth marijuana use: Trends in substance abuse treatment admissions in the United States.

Increases in Hispanic youth admissions to substance abuse treatment programs for marijuana use are a growing public health concern. In this study, we investigated trends in Hispanic youth from 1995 to 2012 utilizing the Treatment Episode Data Set-Admissions of the Substance Abuse Mental Health Services Administration. Hispanic youth marijuana admissions are associated with youth 15-17 years old, in high school, and living in a dependent situation. Notably, female admissions increased at greater rates than males. Results also point to decreasing tolerance of minor marijuana use by schools and community agencies. Findings highlight the need for targeted, culturally specific, and cost-effective treatment and prevention efforts.

The relationship between life stressors and drug and sexual behaviors among a population-based sample of young Black men who have sex with men in Chicago.

Younger Black men who have sex with men (YBMSM) have the highest rates of HIV incidence in the U.S. and are also exposed to high life stressors (e.g., unemployment, incarceration, and exposure to communality). This study assessed whether life stressors were related to drug use and sexual risk behaviors among a representative sample of YBMSM. The South Side of Chicago and selected adjacent suburbs represents the most populous contiguous Black community in the U.S. Over 10% of the estimated YBMSM population in this geographic region were sampled. Major findings indicated that higher life stress was significantly associated with greater odds of transactional sex (aOR = 2.19; 95% CI 1.09-4.39), substance use with sex with male and transgender partners (aOR = 1.62; 95% CI 1.09-2.39), marijuana (aOR = 2.65; 95% CI 1.43-4.90), crack/cocaine (aOR = 3.21; 95% CI 1.16-8.88), and prescription opioid use (aOR = 3.12; 95% CI 1.37-7.13). HIV approaches which focus on environmental stressors and employ a stress and coping framework may support the reduction of drug and sexual risk behaviors among YBMSM. Cognitive and social support approaches might be especially useful in this regard.

Genetic variation in FAAH is associated with cannabis use disorders in a young adult sample of Mexican Americans.

BACKGROUND: Cannabis is a commonly used drug and studies have shown that a significant portion of the variation in cannabis use disorders (CUDs) is heritable. Five genes known to play a role in the endocannabinoid system and CUDs were examined in a community sample of young adult Mexican Americans (MAs): CNR1, MGLL, FAAH, DAGLA, and DAGLB. METHODS: Gene-based tests were run to test for association between each gene and two DSM-5 cannabis phenotypes. Subsequent linear regressions were run in PLINK using an additive model to determine which single nucleotide polymorphisms (SNPs) were driving the association. RESULTS: FAAH was significantly associated with DSM-5 cannabis use disorder group count (DSM-5 CUD) using a gene-based test (p=0.0035). This association survived Bonferroni correction for multiple testing at p<0.004. Post hoc analyses suggested this association was driven by two common (minor allele frequency >5%) SNPs in moderate linkage disequilibrium, rs324420 and rs4141964, at p=0.0014 and p=0.0023, respectively. In both cases the minor allele increased risk for DSM-5 CUD. CONCLUSIONS: Genetic variation in FAAH was associated with DSM-5 CUD in MAs. This association was primarily driven by the missense SNP rs324420. In vitro work has provided evidence that the risk allele generates an enzyme with decreased expression and cellular stability. Although this SNP has been previously associated with substance use in the literature, this is the first association in a young adult MA sample.

Trends in cannabis use disorders among racial/ethnic population groups in the United States.

BACKGROUND: Minority groups generally experience more disparities than whites in behavioral healthcare use. The population of racial/ethnic groups is growing faster than whites. Given increased concerns of cannabis use (CU) and its associations with health conditions, we examined national trends in cannabis use disorder (CUD) among adults aged ≥18 by race/ethnicity. METHODS: Data were from the 2005-2013 National Surveys on Drug Use and Health (N=340,456). We compared CU patterns and the conditional prevalence of CUD among cannabis users by race/ethnicity to understand racial/ethnic variations in CUD. RESULTS: Approximately 1.5% of adults met criteria for a CUD in the past year. Regardless of survey year, cannabis dependence was more common than cannabis abuse, representing 66% of adults with a CUD. Across racial/ethnic groups, the prevalence of cannabis abuse and dependence remained stable during 2005-2013. In the total adult sample, the odds of weekly CU, monthly CU, and cannabis dependence were greater among blacks, native-Americans, and mixed-race adults than whites. Among cannabis users, the odds of cannabis abuse and dependence were greater among blacks, native-Americans, and Hispanics than whites. Logistic regression controlling for age, sex, education, and survey year indicated an increased trend in monthly CU and weekly CU in the total sample and among past-year cannabis users. Younger age, male sex, and low education were associated with increased odds of cannabis dependence. CONCLUSIONS: The large sample provides robust information that indicates a need for research to monitor CUD and identify culturally appropriate interventions especially for targeting minority populations.

Demographic, Mental Health, Behavioral, and Psychosocial Factors Associated with Cigarette Smoking Status Among Young Men Who Have Sex with Men: The P18 Cohort Study.

PURPOSE: Young sexual minority men smoke at higher rates relative to heterosexual peers. The purpose of this study was to examine correlates of smoking in a sample of young gay, bisexual, and other men who have sex with men (MSM) who might differ from more general and age-diverse samples of sexual minority individuals and, thus, inform tailored approaches to addressing tobacco use within this population. METHODS: Data on smoking status were examined in relation to demographics, mental health, substance use behavior, and psychosocial factors. Using multinomial logistic regression, factors were identified that differentiate current and former smokers from never smokers. RESULTS: In bivariate analysis, smoking status was related to demographic, mental health, substance use, and psychosocial factors. Most significantly, smoking status was associated with school enrollment status, current alcohol and marijuana use, and symptoms of depression. Multivariate modeling revealed that, compared to being a never smoker, the odds of current or former smoking were highest among those currently using either alcohol or marijuana. The odds of both current and former smoking were also higher among those reporting greater levels of gay community affinity. Finally, the odds of being a former smoker were higher for those reporting internalized antihomosexual prejudice. CONCLUSION: This study identifies several factors related to smoking status in a diverse sample of young sexual minority males. These findings should encourage investigations of smoking disparities among younger MSM to look beyond common smoking risk factors in an attempt to understand etiologies that may be unique to this group. Such findings may indicate multiple points of potential intervention aimed at decreasing cigarette smoking within this vulnerable population.

Recreational marijuana use and acute ischemic stroke: A population-based analysis of hospitalized patients in the United States.

BACKGROUND: Recreational marijuana use is considered to have few adverse effects. However, recent evidence has suggested that it precipitates cardiovascular and cerebrovascular events. Here, we investigated the relationship between marijuana use and hospitalization for acute ischemic stroke (AIS) using data from the largest inpatient database in the United States. METHODS: The Nationwide Inpatient Sample was queried from 2004 to 2011 for all patients (age 15-54) with a primary diagnosis of AIS. The incidence of AIS hospitalization in marijuana users and non-marijuana users was determined. We utilized multivariable logistic regression analyses to study the independent association between marijuana use and AIS. RESULTS: Overall, the incidence of AIS was significantly greater among marijuana users compared to non-users (Relative Risk [RR]: 1.13, 95% CI: 1.11-1.15, P<0.0001) and had the greatest difference in the 25-34 age group (RR: 2.26, 95% CI: 2.13-2.38, P<0.0001). Marijuana use was more prevalent among younger patients, males, African Americans, and Medicaid enrollees (P<0.0001). Marijuana users were more likely to use other illicit substances but had less overall medical comorbidity. In multivariable analysis, adjusted for potential confounders, marijuana (Odds Ratio [OR]: 1.17, 95% CI: 1.15-1.20), tobacco (OR: 1.76, 95% CI: 1.74-1.77), cocaine (OR: 1.32, 95% CI: 1.30-1.34), and amphetamine (OR: 2.21, 95% CI: 2.12-2.30) usage were found to increase the likelihood of AIS (all P<0.0001). CONCLUSION: Among younger adults, recreational marijuana use is independently associated with 17% increased likelihood of AIS hospitalization.