Substance Use and Mental Health Characteristics Associated with Cognitive Functioning Among Adults Who Use Methamphetamine

This study describes cognitive functioning and its relation to psychiatric and substance use severity among adults with long duration methamphetamine use. Study participants (N = 405) completed a battery of tests from the Automated Neuropsychological Assessment Metrics that examined cognitive accuracy, processing speed, and efficiency. Multivariate analyses indicate that lower accuracy but faster speed on learning, spatial memory and delayed memory were correlated with more days of past-month methamphetamine use. Lifetime months of methamphetamine use was not related to cognitive functioning. Poorer cognitive efficiency was related to other problems, including crack/cocaine use, symptoms of depression, and poorer emotional state.     

Mortality,Causes of Death and Risk Factors for Death Among Primary Amphetamine Users in the Swedish Criminal Justice System

This study examined mortality and predictors of death in 1,396 primary amphetamine users (85% males) who were interviewed with the Addiction Severity Index in the Swedish criminal justice system during 2000–2006 and followed through 2008. Forty-nine clients deceased (standardized mortality ratio 4.1 [3.0–5.4]), at least 84% of deaths were violent or drug-related (12% suicides), and Cox regression analysis indicated that death was associated with frequent use of sedatives and less frequent use of amphetamine. No female deaths were observed; death and male gender were associated in binary analysis. Implications for diagnostics and treatment are discussed.     

Mortality Risk Among Recent-Onset Injection Drug Users in Five U.S. Cities

To quantify the risk of death among recent-onset (< 5 years) injection drug users, we enrolled 2089 injection drug users (IDUs) age ≤ 35 years (minimum age = 18 years) between 1997 and 1999. Median age was 24 years, 62.4% were male, 54.5% were non-Hispanic White, mean duration of injecting was 3 years, and 45.4% injected daily within the prior 6 months. Using the National Death Index, we identified 68 deaths over a follow-up period through December 2002 with a mortality rate of 7.10/1000 person years. Using age-, sex-, and race-adjusted data to the census and mortality, we calculated standardized mortality ratios (SMRs) over time. The adjusted SMR (with national data as the reference) for IDUs was 3.66 for 1997, which increased to 9.78 by 1998, decreased slightly to 7.08 by 1999, and continuously declined to 2.54 by 2002. These data confirm considerable excess mortality among recent onset injection drug users compared to non-IDU peers in the general population and indicate need for interventions such as increased quality and accessibility to drug abuse treatment and overdose prevention to prevent premature death among young IDUs.     

Estimating the Total Mortality Among Problem Drug Users

This paper's objective is to develop a method to estimate the total mortality among problem drug users. The total mortality is given by a base rate of mortality not related to drugs and the deaths that are directly and indirectly related to drugs. A fatal poisoning by drugs (overdose) is directly related to drugs, whereas a casualty due to a drug-related disease or a drug-related accident is indirectly related to drugs. As an example of a method to estimate the total mortality, the results from a cohort study among methadone patients in Amsterdam were projected on the whole population of problem drug users in The Netherlands. Due to differences between the problem drug users in Amsterdam and the rest of the country, adjustments were required. It was found that an initial estimation did not require adjustment for injection behavior and gender but did require adjustment for age and the percentage of HIV infection. In a first unadjusted estimation, the total number of deaths among problem drug users in The Netherlands in 2001 was estimated at 606 deaths. After adjustment for age, the estimated mortality decreased to 573 deaths, and after adjustment for HIV infection, this estimation again decreased to 479 deaths. From the ultimately estimated mortality, 11% was considered to be not related to drugs, 23% was attributed directly to drugs, and 66% was attributed indirectly to drugs. The number of direct deaths, as estimated by this method, falls in the same order of magnitude as the number extracted from the Causes of Death Statistics, when selecting cases according to the Drug-Related Deaths Standard as established by the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA). Further cross-validation with other measures will be needed to assess the accuracy of the method, the limitations of which are discussed with respect to stipulating directions for future research.     

Chronic Physical Health Problems Moderate Changes in Depression and Substance Use Among Dual Diagnosed Individuals During and After Treatment

Background: Physical illnesses frequently co-occur with depression and substance use disorders and may impact their improvement. Physical illness symptoms may overlap with or exacerbate somatic symptoms of depression. Individuals may use substances to cope with symptoms of physical illness. Objectives: We examined whether chronic physical health problems moderated changes in depression and substance use among dual diagnosed individuals during and in the year following treatment. Methods: Participants were recruited from a Veterans Affairs dual diagnosis outpatient program between March 2000 and November 2007 and were randomized to either Integrated Cognitive-Behavioral Therapy or Twelve-Step Facilitation Therapy. A total of 214 veterans with assessment data for the variables of interest were included in analyses. Participants completed quarterly depression, substance use, and health assessments over an 18 month period. We used linear-mixed effects models to analyze patterns of change for depression and substance use. Results: Individuals with severe chronic health problems and higher intake depression showed slower improvements in both nonsomatic and somatic depression symptoms. Individuals with severe chronic health problems and higher midtreatment substance use showed less improvement in substance use. Conclusions: Assessing and addressing physical health issues during depression and substance use disorder treatment may improve outcomes.     

Current and Emerging Treatments for Methamphetamine Use Disorder

Almost two decades have passed since the last methamphetamine (METH) abuse epidemic. In recent years, METH abuse in the United States has been rapidly increasing and is currently one of the leading causes of death in our country. Available statistical data indicates re-emergence of METH popularity and suggest an impending third epidemic of METH abuse. Alarmingly, there is no FDA-approved medication for METH use disorder (MUD). This disorder is currently treated with behavioral therapies; however, these therapies have limitations and would benefit from the addition of a MUD pharmacotherapy. Unfortunately, clinical trials have not yet found consistently effective pharmacotherapy for MUD. This review outlines the history of METH use, provides information on current prevalence of METH abuse and MUD, describes medications that have been in clinical trials for MUD, and addresses current as well as potential new treatments for MUD.     

A Clinician's Guide to Co-occurring ADHD Among Adolescent Substance Users: Comorbidity,Neurodevelopmental Risk,and Evidence-Based Treatment Options

This article introduces neurodevelopmental and clinical considerations for treating adolescents with co-occurring attention deficit hyperactivity disorder (ADHD) and adolescent substance use (ASU) in outpatient settings. We first describe neurobiological impairments common to ADHD and ASU, including comorbidity with conduct disorder, that evoke a profile of multiplicative developmental risk. We then present two evidence-based options for targeting ADHD-related problems during ASU treatment. Medication integration interventions utilize family ADHD psychoeducation to prompt decision making about ADHD medication and integrate medication management into behavioral services. Clinic-based academic training interventions utilize family interventions to improve the home academic environment and boost organization skills. We conclude with recommendations for ADHD assessment and intervention sequencing.     

Predictors of Aggressive Behavior While under the Influence of Illicit Drugs among Young Adult Methamphetamine Users

Background: Prior research indicates that patterns of combined alcohol and methamphetamine use may be associated with experiencing subjective feelings of aggression or hostility during methamphetamine use episodes. Objectives: This study examines whether subjective effects of methamphetamine use (i.e., aggression or hostility and paranoia) are associated with aggressive behavior while under the influence of any illicit drugs, controlling for combined alcohol and methamphetamine use and a number of other potential predictors. Methods: Data from a population-based sample of Australian young adult methamphetamine users (n = 101) collected in 2010 was analyzed. A prediction model of aggressive behavior under the influence of illicit drugs was developed using penalized maximum likelihood logistic regression. Results: Over one-third (34.7%) of methamphetamine users had engaged in verbal and/or physical aggression under the influence of illicit drugs in the last 12 months. In the prediction model, recurrent feelings of aggression or hostility attributed to methamphetamine use (≥3 times in the last 12 months) were associated with aggressive behavior (adjusted odds ratio 4.95, 95% confidence interval 1.67, 14.69). This association was independent of methamphetamine-attributed paranoia, combined alcohol and methamphetamine use, methamphetamine, ecstasy, cocaine, and cannabis use patterns, heavy episodic drinking, gender, and age. No association was found for combined alcohol and methamphetamine use. Conclusions: These findings indicate a link between methamphetamine-related subjective feelings of aggression or hostility and self-reported aggressive behavior while under the influence of illicit drugs. This suggests that subjective feelings of aggression or hostility may distinguish those who are involved in aggression from other methamphetamine users.     

Methamphetamine Users Entering Treatment: Characteristics of the Methamphetamine Treatment Project Sample

The Center for Substance Abuse Treatment funded the Metamphetamine Treatment Project to evaluate and compare treatment approaches for methamphetamine users. As part of this study, drug use patterns, history of physical or sexual abuse, history of suicidality, and psychopathology were assessed in 1,016 methamphetamine-dependent outpatients entering treatment between 1999 and 2001 at eight sites across the western United States. The sample was predominately female and racially diverse. The mean age of the participants was 32.8 years. Most were methamphetamine smokers, but there were marked regional variations. Suicidality and physical or sexual abuse were common and measures of current psychopathology were high. These clinical issues were associated with more frequent use of methamphetamine and, more strongly, with concurrent use of other drugs. Therefore, the relationship between polydrug use and psychopathology in methamphetamine users warrants further investigation.     

Differentiating Characteristics of Juvenile Methamphetamine Users

The authors investigated the differences in characteristics and risk behaviors endorsed by detained adolescent methamphetamine users and compared them with other drug users. Subjects completed the Millon Adolescent Clinical Inventory and a questionnaire in which sociodemographics and behavioral information were explored and compared. Multivariate analyses and self-reports revealed that meth-using adolescents were more likely than other drug users to present symptoms of a clinical syndrome, and had higher prevalence rates of attempted suicide and parents who use drugs. Results indicate significant differences between these groups and suggest the need for individualized drug treatment.     

Differences in Trait Mindfulness Across Mental Health Symptoms Among Adults in Substance Use Treatment

Mindfulness is a growing area of investigation among individuals manifesting substance use disorders, as mindfulness meditation may help to prevent relapse to substance use. The current study examined levels of trait mindfulness in substance users seeking treatment from May 2012 to August 2012 in a Tennessee residential center and whether patients with probable (i.e., diagnoses based on a self-report screening instrument) comorbid depression or PTSD reported lower mindfulness than patients without a probable comorbid diagnosis. Data were collected from a convenience sample of archival patient records (N = 125) and four instruments. The majority of patients were male (n = 84) and non-Hispanic Caucasian (92%); the mean age of the sample was 37.36 (SD = 12.47). Results showed that lower trait mindfulness was associated with increased levels of substance use, depression, and PTSD. Patients with a probable depression or PTSD diagnosis reported lower mindfulness than patients without these disorders. Patients with probable comorbid depression and PTSD reported the lowest levels of mindfulness. These findings suggest that altering levels of mindfulness may be important for individuals manifesting dual-diagnoses in substance user treatment. The study's limitations are noted.     

Effectiveness of a Brief Home-Based Social Work Motivational Intervention for Male Methamphetamine Users in Tehran: A Randomized Clinical Trial

Methamphetamine, a highly addictive psychostimulant drug, is widely used by substance users who are not motivated to undergo treatment throughout the world, including Iran. This research was conducted to evaluate the effectiveness of a brief home-based social work motivational intervention (HSWMI) to encourage male methamphetamine users to participate in a treatment program. Method: Fifty-six unmotivated male methamphetamine users participated in a randomized controlled trial. The case group received the HSWMI in addition to the usual consulting services in the clinic; the control group just received the usual consulting services. Data were collected 7 and 90 days after the intervention to evaluate participation and retention in a treatment program. Data were analyzed using the chi-square test. Results: Drug users with a mean age of 32.55 years and mean duration of drug use of 7.73 years, participated in the case (n = 28) and control (n = 28) groups. The case group participated in treatment programs significantly more than the control group and the retention rate for the case group was significantly higher than for the control group. Conclusion: This brief HSWMI was effective to increase the motivation of methamphetamine users to participate and remain in treatment programs. This intervention can be implemented by social workers in substance use treatment centers.     

Domains and Perceived Benefits of Treatment Among Patients With and Without Co-Occurring Disorders in Inpatient Substance Use Treatment

Objective: Persons with substance use disorders often have comorbid psychiatric problems, and treating all problem domains is important for treatment success and recovery. This study examined reported interventions provided to patients as well as patients’ reports of domains of help received, perceived areas of greatest benefit, and satisfaction with substance use disorder treatment. We also compared patients with co-occurring disorders and patients with only substance use disorders to see whether there were significant differences across groups on these measures. Methods: Patients receiving inpatient substance use treatment at clinics in Norway were recruited for the study; 85 completed a cross-sectional survey prior to discharge. Treatment personnel also completed a separate survey and gathered information from patient charts. Results: The most frequently provided treatment interventions involved improving relationships with family and important others, applied relaxation, psychodynamic therapy, cognitive behavior therapy, and motivational interviewing. Patients reported receiving the most help in domains of relapse prevention, physical health, daily functioning, relationships with people, psychological health, and self-esteem. They benefited most from physical activities, support from co-patients, group therapy, counseling, and assessment/treatment of psychological health. Patients with co-occurring disorders were given more exposure therapy, motivational interviewing, and cognitive behavior therapy interventions than those without comorbidity. Patients with co-occurring disorders self-reported receiving more help with self-esteem and coping with psychiatric symptoms and benefiting more from interventions involving psychological health, acute help, and social situations. Conclusions: Patients perceived psychological and physical health as important areas for improvement. There were differences between patients with co-occurring disorders and those with substance use disorders only in several measures. It is important to acknowledge that patients with substance use disorders and co-occurring mental problems are heterogeneous groups with unique but overlapping needs.     

The Role of Impulsivity Dimensions in the Relation Between Probable Posttraumatic Stress Disorder and Aggressive Behavior Among Substance Users

Objective: Individuals with co-occurring posttraumatic stress disorder (PTSD) and substance use disorder report heightened levels of numerous risky and health-compromising behaviors, including aggressive behaviors. Given evidence that aggressive behavior is associated with negative substance use disorder treatment outcomes, research is needed to identify the factors that may account for the association between PTSD and aggressive behavior among patients with substance use disorder. Thus, the goal of this study was to examine the role of impulsivity dimensions (i.e., negative urgency, lack of premeditation, lack of perseverance, and sensation seeking) in the relations between probable PTSD status and both verbal and physical aggression. Methods: Participants were 92 patients in residential substance use disorder treatment (75% male; 59% African American; M age = 40.25) who completed self-report questionnaires. Results: Patients with co-occurring PTSD–substance use disorder (vs. substance use disorder alone) reported significantly greater verbal and physical aggression as well as higher levels of negative urgency and lack of premeditation. Lack of premeditation and lack of perseverance were significantly positively associated with verbal aggression, whereas negative urgency, lack of premeditation, and lack of perseverance were significantly positively associated with physical aggression. The indirect relation of probable PTSD status to physical aggression through negative urgency was significant. Conclusions: Results highlight the potential utility of incorporating skills focused on controlling impulsive behaviors in the context of negative emotional arousal in interventions for physical aggression among patients with co-occurring PTSD–substance use disorder.     

An Emerging Problem

Abstract

This study examined correlates of methamphetamine (MA) and marijuana (MJ) use and treatment response among treatment-involved youth (N = 4,430) in Los Angeles County, California treated between 2000 and 2005. Of the sample, 912 (21%) were primary MA and 3,518 (79%) were primary MJ users. Correlates of increased MA use included being female, White, Asian or Latino, older age, previous treatment involvement, legal status of probation or parole, and initiating drug use at an older age. Treatment trends showed a rise in treatment admissions for MA, with more MA users enrolling in residential treatment compared to outpatient treatment. Predictors of retention, drug use at discharge, and completion by treatment modality are discussed. Results can guide the development of effective strategies for treatment assessment and planning tailored towards minimizing drug use and maximizing treatment response among youth.     

Exposure to Violence and Substance Use Treatment Outcomes Among Female Patients

Background: Many female substance use patients have experienced violence in the past, with most estimates showing the majority of patients reporting violent experiences at some point. Prior experience with violence has been linked to increased severity of substance use, and this may contribute to more challenges in the path to recovery. Objectives: Existing research has confounded the timing at which violence has occurred with the type of violence to which patients have been exposed. The current study was conducted to specify the extent to which the timing of exposure and the type of violence were associated with substance use after discharge from treatment. Methods: Data were collected from 3,439 female patients included in the Comprehensive Assessment and Treatment Outcome Research (CATOR) system. Results: With regard to the type of exposure, findings indicated female patients who were exposed to multiple forms of violence (i.e. physical and sexual) displayed the greatest severity of substance use upon treatment initiation, as well as the greatest likelihood for use following discharge from treatment. In terms of the timing, female patients who experienced violence at various time points (i.e. before and after 18 years of age) displayed the greatest severity of substance use, but patients who experienced violence after 18 years of age had the highest probability of substance use following discharge from treatment. Conclusions/Importance: Clinicians should collect information related to these important details as treatment protocols are developed, and as patients are connected to aftercare services to minimize post-treatment substance use.     

Alcohol Use Severity and Sexual Risk Behavior Among Female Substance Users

Background: Substance use has been identified as one of the leading factors related to HIV transmission in the United States. The association of problematic drinking with sexual risk behavior puts individuals at greater risk for HIV transmission. This may be of particular concern for women given that approximately 66% of new HIV infections occurring through heterosexual transmission are female. Objectives: To investigate alcohol use severity and sexual risk behavior among females who use heavy, illicit drugs. Methods: Female substances users (N = 251; M_age = 31.90, SD = 7.67; 63.7% Black) self-reported past month alcohol use and lifetime sexual risk behaviors with both casual and steady sex partners. Results: Problematic alcohol users were more likely to use noninjection drugs and less likely to use injection drugs than abstainers and more likely than moderate alcohol users to use alcohol before/during sex with a steady partner. White problematic alcohol users were less likely to use injection drugs before/during sex with a steady partner than abstainers. Black problematic alcohol users were more likely to use non-injection and alcohol than moderate alcohol users before/during sex with steady partners. Conclusions: The current study extends the existing literature by taking a closer look at the role of alcohol use severity in sexual risk taking behavior of Black and White female substance users, a particularly vulnerable group for HIV transmission.