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Dive into the research topics where C. Brendan Clark is active.

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Featured researches published by C. Brendan Clark.


Journal of Psychopharmacology | 2015

Classic psychedelic use is associated with reduced psychological distress and suicidality in the United States adult population

Peter S. Hendricks; Christopher B. Thorne; C. Brendan Clark; David W. Coombs; Matthew W. Johnson

Mental health problems are endemic across the globe, and suicide, a strong corollary of poor mental health, is a leading cause of death. Classic psychedelic use may occasion lasting improvements in mental health, but the effects of classic psychedelic use on suicidality are unknown. We evaluated the relationships of classic psychedelic use with psychological distress and suicidality among over 190,000 USA adult respondents pooled from the last five available years of the National Survey on Drug Use and Health (2008–2012) while controlling for a range of covariates. Lifetime classic psychedelic use was associated with a significantly reduced odds of past month psychological distress (weighted odds ratio (OR)=0.81 (0.72–0.91)), past year suicidal thinking (weighted OR=0.86 (0.78–0.94)), past year suicidal planning (weighted OR=0.71 (0.54–0.94)), and past year suicide attempt (weighted OR=0.64 (0.46–0.89)), whereas lifetime illicit use of other drugs was largely associated with an increased likelihood of these outcomes. These findings indicate that classic psychedelics may hold promise in the prevention of suicide, supporting the view that classic psychedelics’ most highly restricted legal status should be reconsidered to facilitate scientific study, and suggesting that more extensive clinical research with classic psychedelics is warranted.


Journal of Psychopharmacology | 2014

Hallucinogen use predicts reduced recidivism among substance-involved offenders under community corrections supervision

Peter S. Hendricks; C. Brendan Clark; Matthew W. Johnson; Kevin R. Fontaine; Karen L. Cropsey

Hallucinogen-based interventions may benefit substance use populations, but contemporary data informing the impact of hallucinogens on addictive behavior are scarce. Given that many individuals in the criminal justice system engage in problematic patterns of substance use, hallucinogen treatments also may benefit criminal justice populations. However, the relationship between hallucinogen use and criminal recidivism is unknown. In this longitudinal study, we examined the relationship between naturalistic hallucinogen use and recidivism among individuals under community corrections supervision with a history of substance involvement (n=25,622). We found that hallucinogen use predicted a reduced likelihood of supervision failure (e.g. noncompliance with legal requirements including alcohol and other drug use) while controlling for an array of potential confounding factors (odds ratio (OR)=0.60 (0.46, 0.79)). Our results suggest that hallucinogens may promote alcohol and other drug abstinence and prosocial behavior in a population with high rates of recidivism.


Journal of The National Medical Association | 2012

The Unmet Medical Needs of Correctional Populations in the United States

Karen L. Cropsey; Ingrid A. Binswanger; C. Brendan Clark; Faye S. Taxman

The goal of this study was to document the health needs of members in the criminal justice system and the capacity of the system to meet those needs. Using data from the National Criminal Justice Treatment Practices survey, we estimated the number of adults under correctional control who need medical care and the capacity of the correctional system to provide needed care. A mailed survey of 431 adult correctional agencies and administrators was used to define the capacity and techniques of the correctional system to meet the medical needs of the offender population. Most offenders in jail and prison received tuberculosis screening, physical health services, and mental health screening and treatment. Screening for sexually transmitted diseases (STDs) and provision of detoxification or methadone maintenance were universally absent, regardless of criminal justice setting. Community corrections settings were lacking in most health care areas. Prisons and jails are constitutionally mandated to provide health care; however, community corrections agencies are not federally required to provide health services. While community correction settings have the lowest provision of health care services, prisons and jails also demonstrate a deficiency in most services, but particularly for STD screening, substance abuse detoxification, and opioid maintenance therapies.


Addictive Behaviors | 2013

A pilot study of Screening, Brief Intervention, and Referral for Treatment (SBIRT) in non-treatment seeking smokers with HIV

Karen L. Cropsey; Peter S. Hendricks; Bianca F. Jardin; C. Brendan Clark; Nandan Katiyar; James H. Willig; Michael J. Mugavero; James L. Raper; Michael S. Saag; Matthew J. Carpenter

INTRODUCTION PLHIV have higher rates of smoking and lower motivation to quit smoking; thus to impact smoking rates, cessation interventions need to be acceptable to a wider range of PLHIV smokers as well as feasible to implement in a busy clinical setting. The purpose of this study was to evaluate the acceptability, feasibility, and effects of a Screening, Brief Intervention, and Referral for Treatment (SBIRT) model in an HIV/AIDS clinic among a sample of PLHIV. METHODS PLHIV smokers (N=40) were randomized at baseline, irrespective of their self-reported discrete smoking cessation motivation status, to receive either 8-weeks of combination nicotine replacement therapy (NRT) in conjunction with brief counseling (SBIRT framework) (n=23) or usual care (n=17). Smoking outcome measures included cigarettes smoked per day, nicotine dependence, smoking urge, and smoking withdrawal symptoms. RESULTS The SBIRT intervention appeared to be acceptable and feasible, and produced medium to large reductions in cigarettes smoked per day, physical nicotine dependence, smoking urge, and smoking withdrawal symptoms, even for smokers not ready to quit within 6months. CONCLUSIONS Findings provide preliminary support for the integration of an SBIRT model in an HIV/AIDS clinic setting to screen and provide active treatment to all smokers, regardless of readiness to quit smoking. Given the high prevalence and incredible health burden of continued smoking in this population, identifying brief and effective interventions that are easily translated into clinical practice represents an enormous challenge that if met, will yield significant improvements to overall patient outcomes.


Drug and Alcohol Dependence | 2011

Results of a Pilot Randomized Controlled Trial of Buprenorphine For Opioid Dependent Women in the Criminal Justice System

Karen L. Cropsey; Peter S. Lane; Galen J. Hale; Dorothy O. Jackson; C. Brendan Clark; Karen S. Ingersoll; M. Aminul Islam; Maxine L. Stitzer

AIMS Recent studies have demonstrated the efficacy of both methadone and buprenorphine when used with opioid dependent men transitioning from prison to the community, but no studies have been conducted with women in the criminal justice (CJ) system. The aim of this study was to determine the efficacy of buprenorphine for relapse prevention among opioid dependent women in the CJ system transitioning back to the community. METHODS 36 women under CJ supervision were recruited from an inpatient drug treatment facility that treats CJ individuals returning back to the community. Nine were enrolled in an open label buprenorphine arm then 27 were randomized to buprenorphine (n=15) or placebo (n=12; double-blind). All women completed baseline measures and started study medication prior to release. Participants were followed weekly, provided urine drug screens (UDS), received study medication for 12 weeks, and returned for a 3-month follow-up. Intent-to-treat analyses were performed for all time points through 3 month follow-up. RESULTS The majority of participants were Caucasian (88.9%), young (M±SD=31.8±8.4 years), divorced/separated (59.2%) women with at least a high school/GED education (M±SD=12±1.7 years). GEE analyses showed that buprenorphine was efficacious in maintaining abstinence across time compared to placebo. At end of treatment, 92% of placebo and 33% of active medication participants were positive for opiates on urine drug screen (Chi-Square=10.9, df=1; p<0.001). However, by the three month follow-up point, no differences were found between the two groups, with 83% of participants at follow-up positive for opiates. CONCLUSIONS Women in the CJ system who received buprenorphine prior to release from a treatment facility had fewer opiate positive UDS through the 12 weeks of treatment compared to women receiving placebo. Initiating buprenorphine in a controlled environment prior to release appears to be a viable strategy to reduce opiate use when transitioning back to the community.


Journal of Womens Health | 2011

Risk Factors for Cervical Cancer in Criminal Justice Settings

Ingrid A. Binswanger; Shane R. Mueller; C. Brendan Clark; Karen L. Cropsey

BACKGROUND Women in criminal justice settings have an increased prevalence of cervical cancer compared with the general population. However, little is known about abnormal cervical cancer screening results among women in jail and community-based criminal justice settings. Thus, the aims of this study were to compare the prevalence of self-reported abnormal Papanicolou (Pap) test results in women in jail and under community criminal justice supervision and to examine factors associated with abnormal Pap tests in these criminal justice settings. METHODS We analyzed data from two cross-sectional surveys of women in jails and community corrections in two Southern cities (n=380) about their history of abnormal Pap tests and risk factors for cervical cancer. Univariate analyses (analysis of variance [ANOVA] and chi-square) and a binary logistic regression analysis were conducted to test associations between a history of abnormal Pap testing and factors known to be associated with cervical cancer. RESULTS Nearly half of the women surveyed (n=163, 43%) reported ever having an abnormal Pap test. There was a high prevalence of risk factors for cervical cancer among women with and without an abnormal Pap test. After controlling for age and race, there were significant associations between an abnormal Pap test and inconsistent use of barrier protection (odds ratio [OR] 2.01, 95% confidence interval [CI] 1.18-3.43), having a history of gynecologic infections (OR 1.68, 95% CI 1.05-2.67), and having a history of sexually transmitted diseases (OR 1.92, 95% CI 1.17-3.15). CONCLUSIONS Women in jail and under community justice supervision reported a high prevalence of risk factors for cervical cancer. Because of their high prevalence of abnormal Pap testing, women in criminal justice settings may be appropriate targets for improved cervical cancer screening, prevention with human papillomavirus (HPV) vaccination, risk reduction education, and treatment.


American Journal of Preventive Medicine | 2015

Race and Medication Adherence Moderate Cessation Outcomes in Criminal Justice Smokers

Karen L. Cropsey; C. Brendan Clark; Xiao Zhang; Peter S. Hendricks; Bianca F. Jardin; Adrienne C. Lahti

INTRODUCTION Smokers in the criminal justice system represent some of the most disadvantaged smokers in the U.S., as they have high rates of smoking (70%-80%) and are primarily uninsured, with low access to medical interventions. Few studies have examined smoking-cessation interventions in racially diverse smokers, and none have examined these characteristics among individuals supervised in the community. The purpose of this study is to determine if four sessions of standard behavioral counseling for smoking cessation would differentially aid smoking cessation for African American versus non-Hispanic white smokers under community corrections supervision. DESIGN An RCT. SETTING/PARTICIPANTS Five hundred smokers under community corrections supervision were recruited between 2009 and 2013 via flyers posted at the community corrections offices. INTERVENTION All participants received 12 weeks of bupropion plus brief physician advice to quit smoking. Half of the participants received four sessions of 20-30 minutes of smoking-cessation counseling following tobacco treatment guidelines, whereas half received no additional counseling. MAIN OUTCOME MEASURES Generalized estimating equations were used to determine factors associated with smoking abstinence across time. Analyses were conducted in 2014. RESULTS The end-of-treatment abstinence rate across groups was 9.4%, with no significant main effects indicating group differences. However, behavioral counseling had a differential effect on cessation: whites who received counseling had higher quit rates than whites who did not receive counseling. Conversely, African Americans who did not receive counseling had higher average cessation rates than African Americans who received counseling. Overall, medication-adherent African American smokers had higher abstinence rates relative to other smokers. CONCLUSIONS Racial disparities in smoking cessation are not evident among those who are adherent to medication. More research is needed to better understand the differential effect that behavioral counseling might have on treatment outcomes between white and African American smokers under community corrections supervision.


Journal of Affective Disorders | 2013

Cooperation and depressive symptoms

C. Brendan Clark; Christopher B. Thorne; Sonya Hardy; Karen L. Cropsey

BACKGROUND Deficits in pro-social cooperation are common in many individuals with mental illnesses such as depression. For decades, researchers have used economic game paradigms to compare cross-cultural cooperative behavior. However, research using economic games to assess cooperative behavior in clinical populations is in the early stages. We hypothesized that individuals with greater depressive symptoms would struggle to maintain reciprocity in iterative games, but not in single-iteration games measuring personal values. METHODS Participants (n=41) played four computer-based economic games (prisoners dilemma, the public goods game, the ultimatum game, and the trust game) measuring different aspects of cooperation. Participants completed the Depression Anxiety and Stress Scale (DASS) and other measures of personality and demographics. Analyses assessed the relationships between game performance and psychological distress as measured by the DASS. RESULTS Significant correlations were found between game performance and depressive symptoms, but not symptoms of anxiety or stress. Performance in the prisoners dilemma and public goods game was significantly related to depression in a linear regression even when known associations with depressive affect such as age, gender, race, education, marital status, and neuroticism were controlled for. CONCLUSIONS Depressive symptoms were associated with an inability to sustain reciprocal cooperation. Participants showed the predicted deficits in cooperation in these economic games. Economic games show the potential for assessing the social deficits associated with depressive symptoms.


Journal of Interpersonal Violence | 2012

Characteristics of Victims of Sexual Abuse by Gender and Race in a Community Corrections Population

C. Brendan Clark; Adam Perkins; Cheryl McCullumsmith; M. Aminul Islam; Erin E. Hanover; Karen L. Cropsey

The purpose of this study was to examine how victims of sexual abuse in a community corrections population differ as a result of their sex and race. Of the 19,422 participants, a total of 1,298 (6.7%) reported a history of sexual abuse and were compared with nonabused participants. The sample was analyzed by race–gender groups (White men, White women, African American men, and African American women) using univariate and logistic regression analyses, which were conducted separately for each group. White women were the most likely to report a history of sexual abuse (26.5%), followed by African American women (16.0%), White men (4.0%), and African American men (1.1%). For all groups, histories of suicidal ideation and suicide attempts were associated with a history of sexual abuse. Sexual abuse was associated with substance abuse problems for women but not the men. Cannabis dependence was associated with sexual abuse for the White women while cocaine dependence was associated with sexual abuse for the African American women. Several other variables were associated with sexual abuse for women but not men, including lower education (White women only), a history of violent offenses (White women only), and living in a shelter (African American women only). African American men tended to have higher levels of education; this was the only variable uniquely associated with either male group. Receiving psychiatric medications was associated with sexual abuse for all groups except African American men and a history of sex for drugs was associated with sexual abuse for all groups except White men. Consistent with national sample, women, particularly White women, were more likely to be victims of sexual abuse. The gender–race differences for the sociodemographic factors associated with sexual abuse, particularly the risk of substance abuse for women, suggest the need for tailored interventions for sexual abuse prevention and treatment.


Journal of Interpersonal Violence | 2014

Relationship of Trauma Exposure and Substance Abuse to Self-Reported Violence Among Men and Women in Substance Abuse Treatment

C. Brendan Clark; Sarah Reiland; Chris Thorne; Karen L. Cropsey

Past research showed a relationship between substance abuse and aggression and past trauma and aggression. The nature of the relationships between substance use, trauma, and aggression is inconclusive. The current research hypothesized greater aggression among those with a history of substance abuse and trauma compared with those without such a history and an additive relationship between substance abuse and trauma on aggression. Participants were 615 individuals in a substance abuse treatment program for individuals under criminal justice supervision. Data were collected from face-to-face interviews and self-report measures. Univariate and multivariate analyses assessed the relationships among substance use, trauma, and aggression. Participants with a history of trauma and regular substance use reported the highest rates of homicidal ideation, problem behaviors, and person offenses. Participants in this group also reported greater desire for help managing their stress and tension, dealing with problems in their intimate relationships, developing healthier relationships in general, and learning prosocial approaches to express their feelings. Substance abusing participants who experienced trauma reported more externalizing behaviors and a greater desire for coping- and social-skills training than participants who abused substances but did not report a history of trauma. This suggests that participants in substance abuse treatment programs may have improved outcomes with the addition of components to address these issues.

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Karen L. Cropsey

University of Alabama at Birmingham

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Peter S. Hendricks

University of Alabama at Birmingham

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Cheryl McCullumsmith

University of Alabama at Birmingham

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Peter S. Lane

University of Alabama at Birmingham

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Sonya Hardy

University of Alabama at Birmingham

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Adrienne C. Lahti

University of Alabama at Birmingham

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Bianca F. Jardin

Medical University of South Carolina

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Christopher B. Thorne

University of Alabama at Birmingham

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Erin N. Stevens

Northern Illinois University

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